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SEQUENCES IN ORACLE SQL WITH EXAMPLES (asc, desc, cycle, nocycle, cache, nocache)
 
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This video tutorial is to understand the working of sequences in oracle SQL. The video demonstrations explain all the attributes of a create sequence statement such as start with, increment by, maxvalue, nomaxvalue, minvalue, nominvalue, cycle, nocycle, cache, nocache, order, and noorder. All the parameters are explained with appropriate examples so that the user can understand them clearly. For more detail refer to the link: http://plsqlnsql.blogspot.com/2017/01/sequences.html
Views: 1921 Kishan Mashru
SQL tutorial 61: SEQUENCE in Oracle Database By Manish Sharma RebellionRider
 
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This tutorial is all about Sequence In Oracle Database. In this SQL Tutorial you will learn How to create a sequence How to populate a Primary key column (auto increment in Oracle) using Sequence How to drop a sequence ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/sql-sequence-in-oracle-database-rebellionrider-manish-sharma Previous Tutorial ► How To Insert Data into Table using SQL Developer http://youtu.be/YYQCSV6MzTk ► INSERT INTO Command http://youtu.be/uQXgqFtxI_k ► How to copy /Insert data into a table from another table http://youtu.be/m3Ep8tAMqok ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 40595 Manish Sharma
What is the use of cache in Oracle sequence
 
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What is the use of cache in Oracle sequence - Find out more explanation for : 'What is the use of cache in Oracle sequence' only from this channel. Information Source: google
Views: 11 atunakai8b
Sequence object in SQL Server 2012
 
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create sequence in sql server In this video we will discuss sequence object in SQL Server. Sequence object Introduced in SQL Server 2012 Generates sequence of numeric values in an ascending or descending order Text version of the video http://csharp-video-tutorials.blogspot.com/2015/10/sequence-object-in-sql-server-2012.html Slides http://csharp-video-tutorials.blogspot.com/2015/10/sequence-object-in-sql-server-2012_26.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists Creating the Incrementing Sequence : The following code create a Sequence object that starts with 1 and increments by 1 CREATE SEQUENCE [dbo].[SequenceObject] AS INT START WITH 1 INCREMENT BY 1 Generating the Next Sequence Value : Now we have a sequence object created. To generate the sequence value use NEXT VALUE FOR clause SELECT NEXT VALUE FOR [dbo].[SequenceObject] Output : 1 Every time you execute the above query the sequence value will be incremented by 1. I executed the above query 5 times, so the current sequence value is 5. Retrieving the current sequence value : If you want to see what the current Sequence value before generating the next, use sys.sequences SELECT * FROM sys.sequences WHERE name = 'SequenceObject' Alter the Sequence object to reset the sequence value : ALTER SEQUENCE [SequenceObject] RESTART WITH 1 Select the next sequence value to make sure the value starts from 1 SELECT NEXT VALUE FOR [dbo].[SequenceObject] Using sequence value in an INSERT query : CREATE TABLE Employees ( Id INT PRIMARY KEY, Name NVARCHAR(50), Gender NVARCHAR(10) ) -- Generate and insert Sequence values INSERT INTO Employees VALUES (NEXT VALUE for [dbo].[SequenceObject], 'Ben', 'Male') INSERT INTO Employees VALUES (NEXT VALUE for [dbo].[SequenceObject], 'Sara', 'Female') -- Select the data from the table SELECT * FROM Employees Creating the decrementing Sequence : The following code create a Sequence object that starts with 100 and decrements by 1 CREATE SEQUENCE [dbo].[SequenceObject] AS INT START WITH 100 INCREMENT BY -1 Specifying MIN and MAX values for the sequence : Use the MINVALUE and MAXVALUE arguments to specify the MIN and MAX values respectively. Step 1 : Create the Sequence object CREATE SEQUENCE [dbo].[SequenceObject] START WITH 100 INCREMENT BY 10 MINVALUE 100 MAXVALUE 150 Step 2 : Retrieve the next sequence value. The sequence value starts at 100. Every time we call NEXT VALUE, the value will be incremented by 10. SELECT NEXT VALUE FOR [dbo].[SequenceObject] If you call NEXT VALUE, when the value reaches 150 (MAXVALUE), you will get the following error The sequence object 'SequenceObject' has reached its minimum or maximum value. Restart the sequence object to allow new values to be generated. Recycling Sequence values : When the sequence object has reached it's maximum value, and if you want to restart from the minimum value, set CYCLE option ALTER SEQUENCE [dbo].[SequenceObject] INCREMENT BY 10 MINVALUE 100 MAXVALUE 150 CYCLE At this point, whe the sequence object has reached it's maximum value, and if you ask for the NEXT VALUE, sequence object starts from the minimum value again which in this case is 100. To improve performance, the Sequence object values can be cached using the CACHE option. When the values are cached they are read from the memory instead of from the disk, which improves the performance. When the cache option is specified you can also specify the size of th cache , that is the number of values to cache. The following example, creates the sequence object with 10 values cached. When the 11th value is requested, the next 10 values will be cached again. CREATE SEQUENCE [dbo].[SequenceObject] START WITH 1 INCREMENT BY 1 CACHE 10 Using SQL Server Graphical User Interface (GUI) to create the sequence object : 1. Expand the database folder 2. Expand Programmability folder 3. Right click on Sequences folder 4. Select New Sequence Next video : Difference between SEQUENCE and IDENTITY in SQL Server
Views: 33207 kudvenkat
SQL: Sequence Generator
 
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In this tutorial, you'll learn how to make use of sequence generator. PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle Database (since version 7), TimesTen in-memory database (since version 11.2.1), and IBM DB2 (since version 9.7).[1] Oracle Corporation usually extends PL/SQL functionality with each successive release of the Oracle Database. PL/SQL includes procedural language elements such as conditions and loops. It allows declaration of constants and variables, procedures and functions, types and variables of those types, and triggers. It can handle exceptions (runtime errors). Arrays are supported involving the use of PL/SQL collections. Implementations from version 8 of Oracle Database onwards have included features associated with object-orientation. One can create PL/SQL units such as procedures, functions, packages, types, and triggers, which are stored in the database for reuse by applications that use any of the Oracle Database programmatic interfaces. PL/SQL works analogously to the embedded procedural languages associated with other relational databases. For example, Sybase ASE and Microsoft SQL Server have Transact-SQL, PostgreSQL has PL/pgSQL (which emulates PL/SQL to an extent), and IBM DB2 includes SQL Procedural Language,[2] which conforms to the ISO SQL’s SQL/PSM standard. The designers of PL/SQL modeled its syntax on that of Ada. Both Ada and PL/SQL have Pascal as a common ancestor, and so PL/SQL also resembles Pascal in several aspects. However, the structure of a PL/SQL package does not resemble the basic Object Pascal program structure as implemented by a Borland Delphi or Free Pascal unit. Programmers can define public and private global data-types, constants and static variables in a PL/SQL package.[3] PL/SQL also allows for the definition of classes and instantiating these as objects in PL/SQL code. This resembles usage in object-oriented programming languages like Object Pascal, C++ and Java. PL/SQL refers to a class as an "Abstract Data Type" (ADT) or "User Defined Type" (UDT), and defines it as an Oracle SQL data-type as opposed to a PL/SQL user-defined type, allowing its use in both the Oracle SQL Engine and the Oracle PL/SQL engine. The constructor and methods of an Abstract Data Type are written in PL/SQL. The resulting Abstract Data Type can operate as an object class in PL/SQL. Such objects can also persist as column values in Oracle database tables. PL/SQL is fundamentally distinct from Transact-SQL, despite superficial similarities. Porting code from one to the other usually involves non-trivial work, not only due to the differences in the feature sets of the two languages,[4] but also due to the very significant differences in the way Oracle and SQL Server deal with concurrency and locking. There are software tools available that claim to facilitate porting including Oracle Translation Scratch Editor,[5] CEITON MSSQL/Oracle Compiler [6] and SwisSQL.[7] The StepSqlite product is a PL/SQL compiler for the popular small database SQLite. PL/SQL Program Unit A PL/SQL program unit is one of the following: PL/SQL anonymous block, procedure, function, package specification, package body, trigger, type specification, type body, library. Program units are the PL/SQL source code that is compiled, developed and ultimately executed on the database. The basic unit of a PL/SQL source program is the block, which groups together related declarations and statements. A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part. The declaration section is optional and may be used to define and initialize constants and variables. If a variable is not initialized then it defaults to NULL value. The optional exception-handling part is used to handle run time errors. Only the executable part is required. A block can have a label. Package Packages are groups of conceptually linked functions, procedures, variables, PL/SQL table and record TYPE statements, constants, cursors etc. The use of packages promotes re-use of code. Packages are composed of the package specification and an optional package body. The specification is the interface to the application; it declares the types, variables, constants, exceptions, cursors, and subprograms available. The body fully defines cursors and subprograms, and so implements the specification. Two advantages of packages are: Modular approach, encapsulation/hiding of business logic, security, performance improvement, re-usability. They support object-oriented programming features like function overloading and encapsulation. Using package variables one can declare session level (scoped) variables, since variables declared in the package specification have a session scope.
Views: 7366 radhikaravikumar
SCPT 13: Oracle Redo Buffer Cache
 
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In this video we will learn about Redo Buffer Cache in Oracle RDBMS. For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=6 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 26784 Oresoft LWC
Redo Logs in an Oracle Database - DBArch Video 11
 
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This video explains the concepts of Redo Log Groups and Files in an Oracle Database. You will understand how Oracle Instance uses Redo Buffers and Logwriter to keep the redo in Redo Logs. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 12960 Ramkumar Swaminathan
DB2 Basics Tutorial Part 12 - DB CFG - Package cache/Sort Heap
 
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This tutorial talk about package cache and sort heap parameters.
Views: 1285 db2 nix
Oracle Architecture
 
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This video describes the best architecture of the oracle after trying more than times to Oracle structure I decided to produce an animated video let's start first with the database structure on the left side you have the client here on the right side you have to serve a two-year the server side is divided in three main structures to memory the logical structure and the physical structure so let's use SQL Plus application to provide you every step up a transaction will be using Scott sample schema it is important to note that the whole string is an alias and not a database name district will be compared to this alias inside of a file called pianist named doc or this file is similar to a DNS and with up pain all the necessary detail to reach a database server locally a user process will be allocated and will validate the connection through a listener the listener will be in charge to allocate a server process the user processes da link to the server process let's now execute our first transaction for this example we will execute an update first to state that will be validated we call this step the parsing this server process sense back to confirmation of the parsing that statement with be written into their share pool and the redo log buffer an execution plan will also be created it to the fair share Paul that database book they choose fought the transaction will be read and copy into the database buffer cache only that feel implicated in that transaction will be held it to a - segment till the transaction is completed we call those copies the before image a copy of this block will be duplicated with the updated feel this copy is called me after image a confirmation will be sent to to use a process the commit statement will complete the transaction and will be written into to redo log buffer to commit statement triggers the log writer process and we'll send all statement for the current transaction into the redo log file the before image into undo segment could be then deleted went that threshold up to undo retention parameters reach alaskan from Asian will be sent to the user process went to current law kiss Paul it generates a switch lock triggering at the same time the archiver process and to log sequence number the archiver will generate and archive the file with the content of the current loc a switch up with them trigger a checkpoint process that will incriminate the checkpoint number by applying this last number into each data file header the checkpoint process with finally trigger the database writer process enright the last image from that database buffer cache into thirty people
Views: 19697 Ezylearning
Curso de Oracle (Tuning) 05 - Trabalhando com o Library Cache
 
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Curso Oracle PL/SQL Essentials http://bit.ly/1N3upVn Curso Oracle SQL Expert - Certificação 1Z0-047 http://bit.ly/1G4rKWG Curso Oracle Aprendendo SQL - Preparatório exames 1Z0-051/1Z0-061 http://bit.ly/1eqDlsr Curso de Administração de Redes de Computadores http://goo.gl/nXjaXS Neste curso de Tuning no Oracle você irá aprender os principais conceitos de tuning no oracle melhorando consideravelmente as aplicações em ambientes de produção. No Curso de Tuning no Oracle você será direcionado passo a passo durante o aprendizado com ótima qualidade do conteúdo disponibilizado. Este curso é oferecido gratuitamente aqui porém caso tenha interesse em se aprofundar e aprender o oracle a fundo praparando para certificação acesse os links acima. Também acesse o link de administração de redes de computadores para mais conhecimento nesta área tornando-se um profissional completo. http://youtu.be/sTr8mHaBY2k Tags: Oracle Curso de Oracle Curso de banco de dados Tuning Cursos gratuitos
Views: 819 Cursos Interativos
قواعد البيانات 11 (Background Process 2 -DBWR,LGWR (Oracle DBA 11g Tutorial
 
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Oracle DBA 11g Tutorial Background Process part 2 (DBWR,LGWR,CKPT,ARCH) oracle database writer background process dbwr log writer background process lgwr checkpoint background process ckpt archive process
Views: 421 Ahmed Ybat
SCPT 21: Oracle Back Ground Processes ( CKPT, DBWR, LGWR, ARCH)
 
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Oracle DBA Tutorials For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=6 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 58382 Oresoft LWC
Oracle 11gR2 RAC DEMO
 
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Demonstration on Oracle 11gR2 RAC training.
Views: 1933 OrSkl Academy
Change INITRANS on table in Oracle database
 
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http://dbacatalog.blogspot.com
Views: 491 dbacatalog
Alter Sequence in SQL Server Tamil
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg In this video you can see how to alter Sequence Object in SQL Server Modifies the arguments of an existing sequence object. If the sequence was created with the CACHE option, altering the sequence will recreate the cache. Sequences objects are created by using the CREATE SEQUENCE statement. Sequences are integer values and can be of any data type that returns an integer. The data type cannot be changed by using the ALTER SEQUENCE statement. To change the data type, drop and create the sequence object. A sequence is a user-defined schema bound object that generates a sequence of numeric values according to a specification. New values are generated from a sequence by calling the NEXT VALUE FOR function
Views: 68 IT Port
SCPT 8: Redo Log Files
 
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Oracle DBA Tutorials For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=6 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 49803 Oresoft LWC
La Database Buffer  Cache de la base de données Oracle
 
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http://docs.oracle.com/cd/E25178_01/server.1111/e25789/memory.htm http://docs.oracle.com/cd/E25178_01/server.1111/e25789/memory.htm http://blog.gerwinhendriksen.com/?p=78 http://itsiti.com/oracle-sga-memory-data-structure http://guyharrison.squarespace.com/ssdguide/03-the-oracle-database-flash-cache.html http://oraclegurukul.blogspot.fr/2012/07/db-buffer-cache.html https://www.toadworld.com/platforms/oracle/w/wiki/551.buffer-cache-overview https://mwidlake.wordpress.com/2011/08/08/iot-part-4-greatly-boosting-buffer-cache-efficiency/ https://www.facebook.com/foalenglowe.rene
Views: 32 FOALENG LOWE Rene
Oracle Tutorial in Hindi - How to Multiplex/Mirror a Redo Log File of an Oracle Database
 
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How to Multiplex/Mirror a Redo Log File of an Oracle Database... by Lalit Saini....
Views: 5272 Oracle World
What is the use of checkpoint in Oracle
 
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What is the use of checkpoint in Oracle - Find out more explanation for : 'What is the use of checkpoint in Oracle' only from this channel. Information Source: google
Views: 48 Wait, whattt...?
Oracle Database LGWR Three Second Rule. Really?
 
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Go to the blog posting: http://blog.orapub.com/20140608/The-Oracle-Database-LGWR-Three-Second-Rule-Really.html I have learned the part of Oracle Database performance tuning is checking if what you have been taught is actually true. What I'm writing about today has been done before in Oracle Database 10g and 11g, but I wanted to document this using 12c. When I was first learning about the Oracle Database process architecture, the instructor said there are a number of reasons the log writer (LGWR) background process will wake up and do "something." In addition to this, if the LGWR was not signaled to wake up, every three seconds it would wake up by itself and check if there was something it needed to do. Is this "three second rule" really true? That's what this posting is all about.
Views: 605 OraPub, Inc.
Charles Bay: The CPU Cache: Instruction Re-Ordering Made Obvious
 
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The CPU cache has been described as one of the greatest inventions in the history of computer science. In the era of the modern multi-core CPU, software design increasingly relies upon the CPU cache to enable performance, and to forgive our software implementation transgressions. This performance comes at a cost: To make best use of underlying CPU resources, the CPU and compiler will conspire to re-order the instructions specified in our source code algorithms -- at compile-time, and at run-time. This re-ordering can be perplexing to new programmers, and confusing when debugging real-world scenarios. However, re-ordering is explicitly allowed by the C++ Standard under the “As-If” rule, with C++11 providing the programmer additional tools through language and library features such as the C++11 memory model, atomics, memory fences, and threading libraries. This is a, “First Principles” (i.e., “introductory”) discussion of the CPU cache, its anatomy, and its ever-growing role in hardware and software design. Modern performant systems are implemented with explicit knowledge of the CPU cache’s structure and behavior. Discussion is made of CPU registers, CPU cache levels, the cache line, the data bus, the CPU instruction pipeline, the compiler’s duty, and the tremendous hijinks performed by execution units within the processor core at runtime which leads to instruction re-ordering -- for which the knowledgeable C++ programmer is grateful. No programmer can be an expert on everything. However, increasingly most C and C++ programmers need to be conversant with CPU cache issues and terminology at this level, and such understanding will make compiler and runtime behavior (and especially instruction re-ordering) much more obvious. From here, one begins to think about how to leverage parallelism and be concerned with concurrency. Slides here: https://github.com/boostcon/cppnow_presentations_2016/blob/master/03_friday/the_cpu_cache_instruction_reordering_made_obvious.pdf
Views: 2231 BoostCon
33. Column Format in Oracle
 
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In this video you will learn about Column Formatting. I will show you how we can format the numeric column to use comma (,) to separate thousand etc. I will also show you how we can trunc string to show first 3 words etc. For Support =========== Email: [email protected] Contact Form: http://www.learninhindi.com/home/contact Our Social Media ================ Facebook: https://www.facebook.com/LearnInHindi Twitter: https://twitter.com/LearnInHindi For Training & Videos ===================== For more videos and articles visit: http://www.learninhindi.com Free Java Programming In Hindi Course ===================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAwwhMyoLISrxkXTADGp7PH Free Oracle PL/SQL Programming In Hindi Course ============================================== https://www.youtube.com/playlist?list=PLB5DA82419C2D99B6 Free C Programming In Hindi Course ================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAxKpBLMWogxSdy6BZcsAJq Trips & Tricks Channel ====================== https://www.youtube.com/channel/UCGmLfkuCo-3lHHJXRJ9HUMw Programming in Hindi Channel ============================ https://www.youtube.com/channel/UCudElIDgwNrybeAvXIy1HZQ
Views: 15508 ITORIAN
Base-Delta-Immediate Compression: Practical Data Compression for On-Chip Caches
 
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Cache compression is a promising technique to increase on-chip cache capacity and to decrease on-chip and off-chip bandwidth usage. Unfortunately, directly applying well-known compression algorithms (usually implemented in software) leads to high hardware complexity and unacceptable decompression/compression latencies, which in turn can negatively affect performance. Hence, there is a need for a simple yet efficient compression technique that can effectively compress common in-cache data patterns, and has minimal effect on cache access latency. In this work, we introduce a new compression algorithm called Base-Delta-Immediate (B?I) compression, a practical technique for compressing data in on-chip caches. The key idea is that, for many cache lines, the values within the cache line have a low dynamic range � i.e., the differences between values stored within the cache line are small. As a result, a cache line can be represented using a base value and an array of differences whose combined size is much smaller than the original cache line (we call this the base+delta encoding). Moreover, many cache lines intersperse such base+delta values with small values � our B?I technique efficiently incorporates such immediate values into its encoding. Compared to prior cache compression approaches, our studies show that B?I strikes a sweet-spot in the tradeoff between compression ratio, decompression/compression latencies, and hardware complexity. Our results show that B?I compression improves performance for both single-core (8.1% improvement) and multi-core workloads (9.5% / 11.2%) improvement for two/four cores). For many applications, B?I provides the performance benefit of doubling the cache size of the baseline system, effectively increasing average cache capacity by 1.53X.
Views: 252 Microsoft Research
Reload data into cache automatically when data in the table changes   Part 132
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2013/02/reload-data-into-cache-automatically.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-132-reload-data-into-cache.html All ASP .NET Text Articles http://csharp-video-tutorials.blogspot.com/p/free-aspnet-video-tutorial.html All ASP .NET Slides http://csharp-video-tutorials.blogspot.com/p/aspnet-slides.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists In Part 130 of asp.net video tutorial, we discussed about reloading data into cache automatically, when the xml file from which the data was initially retrieved, has changed. In this video, we will discuss about reloading data into cache automatically when data in the underlying database table has changed. Please watch Part 131, before proceeding with this video. To load data automatically into cache, when cached data is removed, we need to define a callback method. This callback method will be invoked when the respective item is removed from cache. So, the code to reload and re-cache data can be written in this method. The callback method signature should match, with the signature of "CacheItemRemovedCallback" delegate. The call back method is defined below. public void CacheItemRemovedCallbackMethod(string key, object value, CacheItemRemovedReason reason) { string CS = ConfigurationManager.ConnectionStrings["DBConnectionString"].ConnectionString; SqlConnection con = new SqlConnection(CS); SqlDataAdapter da = new SqlDataAdapter("spGetProducts", con); da.SelectCommand.CommandType = CommandType.StoredProcedure; DataSet ds = new DataSet(); da.Fill(ds); CacheItemRemovedCallback onCacheItemRemoved = new CacheItemRemovedCallback(CacheItemRemovedCallbackMethod); SqlCacheDependency sqlDependency = new SqlCacheDependency("Sample", "tblProducts"); Cache.Insert("ProductsData", ds, sqlDependency, DateTime.Now.AddHours(24), Cache.NoSlidingExpiration, CacheItemPriority.Default, onCacheItemRemoved); } Now, create an instance of "CacheItemRemovedCallback" delegate, and to the contructor pass the name of the callback method, that should be executed automatically when, the cached item is removed. CacheItemRemovedCallback onCacheItemRemoved = new CacheItemRemovedCallback(CacheItemRemovedCallbackMethod); In Part 131, to cache data, we used cache object's, Insert() method that takes 3 parameters, as shown below. Cache.Insert("ProductsData", ds, sqlDependency); Instead, let's use the overloaded version that takes 7 parameters and pass "onCacheItemRemoved" as an argument for "CacheItemRemovedCallback" parameter. Cache.Insert("ProductsData", ds, sqlDependency, DateTime.Now.AddHours(24), Cache.NoSlidingExpiration, CacheItemPriority.Default, onCacheItemRemoved); That's it. We are done. Now, please run the application. When "Get Data" button is clicked for the first time, the data is loaded from database. Once the data is loaded into cache, we always get it from cache when we click "Get Data". Now, execute an update statement on the database table. Notice that, when we click "Get Data" button now, we still get data from cache, but notice that, the updated data is loaded.
Views: 37169 kudvenkat
What is a HashTable Data Structure - Introduction to Hash Tables , Part 0
 
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This tutorial is an introduction to hash tables. A hash table is a data structure that is used to implement an associative array. This video explains some of the basic concepts regarding hash tables, and also discusses one method (chaining) that can be used to avoid collisions. Wan't to learn C++? I highly recommend this book http://amzn.to/1PftaSt Donate http://bit.ly/17vCDFx
Views: 729054 Paul Programming
SCPT 42: What is redo and undo in Oracle
 
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Oracle DBA Tutorials For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=6 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 26239 Oresoft LWC
PART 5-Oracle 10g Form Builder using  LIST ITEM
 
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list-element, list item value, difference between list item and radio button
Views: 33008 Dr. Girija Narasimhan
Arquitetura-Oracle- Log Buffer
 
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Este vídeo ilustra o funcionamento do mecanismo de Redo Log Buffer.
Views: 469 DBA Maker
Module 1- Introduction to Oracle Database
 
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Hello viewers, We are starting our section on professional courses and for which we are starting our course material which is based on the Oracle Database, Please refer to the description below for knowing which topics will be covered in Oracle DBA Installation Module 1 – Introduction to Database • Introduction to Database • How ORACLE DB does it • Unix kernal Module 2 – Physical Database Structure • Physical Database Structure • Control files • Key information of files • Redo log files Module 3 – Oracle Storage structures • Oracle Storage structures • Table statement • How to check “create table” • Schemas and schema objects • Data blocks • Extents • Segments Module 4 – Memory & Process Architecture • Memory & Process Architecture • Instance/Memory structures • Shared pool • Buffer Cache • Redo Log Buffer • Process Architecture • Background process Module 5 – Background Process, Alert & Trace files • Background Process, Alert & Trace files • Alert • Trace files Module 6 – Database Startup & Serving User Requests • Database Startup & Serving User Requests • Offline backup • Standby Database Module 12 – Oracle Recovery Manager (RMAN) • Oracle Recovery Manager (RMAN) • Data pump export & import • SQL loader • External table Module 13 – Data dictionary & Dynamic Performance Tables • Data dictionary & Dynamic Performance Tables • Dynamic performance Tables • Typical day ORACLE DBA Module 14 – Introduction to Database Tuning • Introduction to Database Tuning • Monitor space usage • Monitor SQL scripts • Data base tuning • SQL tuning • Table Statistics • Index statistics • Index Selectivity • Chained Rows • Locks Module 15 – Introduction to Database Tuning Continued • Introduction to Database Tuning Continued • Tuning Shared pool • Data dictionary performance • Data dictionary tuning • PL/SQL code • Code reuse • Data base Buffer • Buffer cache hit Ratio • Code reuse • Database Startup • User process, Server process Module 7 – Database Security • Database Security • Process of “Create User” • Alter & Drop User • Resource Limits & profiles • Auditing Module 8 – Schema Objects • Schema Objects • Types of schema objects • How table data is stored • Temporary Tables • External Tables Module 9 – Schema Object Continued • Schema Object Continued • Materialized View • Sequence Generator • Indexes • B-Tree index structure • Cluster/Hash Cluster • Data concurrency & consistency • Locking • Deadlocks Module 10 – Oracle Network Environment • Oracle Network Environment • How to connect your database • Network environment of ORACLE • Database link Module 11 – Oracle Backup & Recovery Concepts • Oracle Backup & Recovery Concepts • Standby database • Testing • Media recovery options so in today's video, we will be discussing Module -1 The Introduction to Oracle Database. ----------------------------------------------------------------------------------------------------------- For downloading notes in PDF format please visit my Blog https://thedynamicstudy.blogspot.com/ ---------------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------------- Please go through the video and don't forget to share your views and subscribe the channel to keep the content open and reachable to students. ---------------------------------------------------------------------------------------------------- keep on watching, keep on learning! #dynamicstudy
Views: 29 Dynamic Study
Global Temporary Tables || Oracle SQL || In Telugu Part - 2
 
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In this video, we discuss the session specific global temporary tables concept in telugu
REDO File - Archived Redo Log Mode and NoArchive Redo Log Mode
 
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REDO File - Archived Redo Log Mode and NoArchive Redo Log Mode For Students of B.Tech, B.E, MCA, BCA, B.Sc., M.Sc., Courses - As Per IP University Syllabus and Other Engineering Courses
background process in oracle database
 
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background process in oracle database 10g and 11g
Views: 950 Sainora Annanagar
DB2 Basics Tutorial Part 8 - DB CFG - Collating sequence/Test Case
 
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DB2 Important DB parameters Link to dba convertor : https://play.google.com/store/apps/details?id=in.blogspot.db2nix.dbaconvertor&hl=en App name : aconv
Views: 1778 db2 nix
11G features
 
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11G features / Drop Table Test; / 1) Invisible Index / Create Table Test (A Number, B Varchar2(20) ); / Begin For I In 1..100000 loop Insert Into Test Values(I,'test'||I); End Loop; end; / explain plan for Select * From Test where b='test1850'; / Select * From Table(Dbms_Xplan.Display()); / Create Index In_test On Test(b) visible; / Alter Index In_test Invisible; / Alter Index In_test Visible; / Select * From User_Indexes Where Table_Name='TEST'; / ===================== 2) Sql Result Cache / 1. 1st Time It Will Execute The Query From Db 2. After That If We Execute The Same Query, It Wont Execute The Query Again In Db. It Will Fetch The Result From This Cache Memory. ===================== 3) Read only table: / Drop Table Test1; / Create Table Test1 ( A Number, B Number, C Varchar2(20) ); / Insert Into Test1 Values (10, 20, 'test'); / Select * From Test1; / Alter Table Test1 read only; / Insert Into Test1 Values (10, 20, 'test'); / Select * From Test1; / Alter Table Test1 Read write; / Insert Into Test1 Values (10, 20, 'test'); / Select * From Test1; / =========================== 4) Virtual Column; ====== / Drop Table Hist_Student; / CREATE TABLE HIST_STUDENT( ST_MARKS NUMBER, St_Max_Marks Number, St_Perc Number As (round(St_Marks/St_Max_Marks)*100), sum_marks number as (st_marks+st_max_marks) ); / Insert Into Hist_Student (St_Marks,St_Max_Marks) Values(93,150); Insert Into Hist_Student (St_Marks,St_Max_Marks) Values(85,100); / Select * From Hist_Student; / ====================== 5)Listagg / Syntax: / LISTAGG - LISTAGG (measure_expr [, 'delimiter_expr']) WITHIN GROUP (ORDER By Clause) [Over Partition Byclause] / Select Department_Id, Listagg( first_Name,',') Within Group(Order By Salary) Employees From Employees group by department_id; ====================== 6) Sequence Usage / DECLARE L_ID NUMBER; BEGIN L_ID:= TEST_SEQ.NEXTVAL; End; / 7) Regexp_Count / WITH C AS (SELECT ‘Sachin Tendulkar’ STARS FROM DUAL UNION ALL Select ‘virender Sehwag’ Stars From Dual Union All SELECT ‘Gautam Gambhir’ STA`RS FROM DUAL UNION ALL SELECT ‘MS Dhoni’ STARS FROM DUAL UNION ALL SELECT ‘Yuvraj Singh’ STARS FROM DUAL) SELECT STARS, REGEXP_COUNT(STARS, ‘s’, 1, ‘i’) S FROM C; STARS S --------- -- Sachin Tendulkar 1 Virender Sehwag 1 Gautam Gambhir 0 MS Dhoni 1 Yuvraj Singh 1
Logical query processing in SQL Server
 
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SQL Server processes code in a sequence which is known as the Logical Query Processing order. In a typical query, the logical processing order is : FROM, WHERE, GROUP BY, HAVING, SELECT, ORDER BY. Each step produces a virtual table that is used in the next step. The logical Query Processing order is different from the order in which the code is written ("keyed-in order") which would be SELECT, FROM, WHERE, GROUP BY, HAVING ,ORDER BY. Understanding the Logical Query Processing order is important as it can impact whether a query works or generates errors. I also have a comprehensive 60 minute T-SQL course available at Udemy : https://www.udemy.com/t-sql-for-data-analysts/?couponCode=ANALYTICS50%25OFF
Views: 7829 Steve Fox
SQL PLAN MANAGMENT
 
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Proyecto final de administración de bases de datos relacionales II
Views: 436 César Retana
DB2 Basics Tutorial  Part 1
 
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DB2 Basics Tutorial Part 1
Views: 41069 db2 nix
How to drop a redolog member & group in Oracle 10g, 11g, 12c
 
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How to drop a redolog member & group in Oracle 10g, 11g, 12c
Views: 350 Tasfique Ahmed
AWS Redshift Tutorial For Beginners | Amazon Redshift Tutorial | AWS Training Video | Simplilearn
 
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This Amazon Redshift tutorial will help you understand the different features offered by AWS Redshift. Amazon Redshift is a fast, fully managed data warehouse that makes it simple and cost-effective to analyze all your data using standard SQL and your existing Business Intelligence (BI) tools. It allows you to run complex analytic queries against petabytes of structured data, using sophisticated query optimization, columnar storage on high-performance local disks, and massively parallel query execution. Most results come back in seconds. With Amazon Redshift, you can start small for just $0.25 per hour with no commitments and scale out to petabytes of data for $1,000 per terabyte per year, less than a tenth the cost of traditional solutions. Below topic are explained in this AWS Redshift Tutorial: -( 00:11 ) What is Amazon Redshift -( 00:29 ) LAP and Columns -( 01:18 ) Redshift Columnar Storage -( 01:49 ) Redshift Nodes -( 02:34 ) Limitations -( 02:58 ) Redshift Costs Amazon Redshift also includes Redshift Spectrum, allowing you to directly run SQL queries against exabytes of unstructured data in Amazon S3. No loading or transformation is required, and you can use open data formats, including CSV, TSV, Parquet, Sequence, and RCFile. Redshift Spectrum automatically scales query compute capacity based on the data being retrieved, so queries against Amazon S3 run fast, regardless of data set size. Subscribe to Simplilearn channel to get more AWS video updates: https://www.youtube.com/user/Simplilearn?sub_confirmation=1 Check our complete AWS Tutorial for beginners playlist here: https://www.youtube.com/watch?v=98ya1LiEU00&list=PLEiEAq2VkUULlNtIFhEQHo8gacvme35rz Cloud computing articles - https://www.simplilearn.com/resources/virtualization-and-cloud-computing?utm_campaign=AWS-ELB-Tutorial-YO4L_9poF3g&utm_medium=Tutorials&utm_source=youtube #AWSTutorial #AWSTrainingVideos #SimplilearnAWS #AWSCertification #AWSForBeginners #AWSRedShift To gain in-depth knowledge of Amazon Redshift and other AWS Amazon web services, check our AWS certification training course - https://www.simplilearn.com/cloud-computing/aws-solution-architect-associate-training?utm_campaign=AWS-Redshift-EcEB6Di_Mq8&utm_medium=Tutorials&utm_source=youtube - - - - - - - - - - - - - - About the Simplilearn AWS course: This AWS certification course will help you learn the key concepts, latest trends, and best practices for working with the AWS architecture – and become industry-ready aws certified solutions architect to help you qualify for a position as a high-quality AWS professional. Practice assignments and three live projects are designed to give you hands-on experience with the AWS management console. The course begins with an overview of the AWS platform before diving into its individual elements: IAM, VPC, EC2, EBS, ELB, CDN, S3, EIP, KMS, Route 53, RDS, Glacier, Snowball, Cloudfront, Dynamo DB, Redshift, Auto Scaling, Cloudwatch, Elastic Cache, CloudTrail, and Security.. By the end of this AWS training course you will be able to: 1. Formulate solution plans and provide guidance on AWS architectural best practices 2. Design and deploy scalable, highly available, and fault tolerant systems on AWS 3. Identify the lift and shift of an existing on-premises application to AWS 4. Decipher the ingress and egress of data to and from AWS 5. Select the appropriate AWS service based on data, compute, database, or security requirements 6. Estimate AWS costs and identify cost control mechanisms - - - - - - - - - - - - - - Who should go for this AWS course? This course is ideal for professionals who want to pursue a career in Cloud computing or develop Cloud applications with AWS. You’ll become an asset to any organization, helping leverage best practices around advanced cloud based solutions and migrate existing workloads to the cloud. - - - - - - - - - - - - - - Following projects are covered in this AWS course: Project 1 Create a custom VPC with public and private subnets on two availability zones and launch instances into each subnet. Project 2 Launch two web servers and configure a load balancer and auto scaling. Project 3 Configure RD Gateway on a VPC with a public and private subnet. - - - - - - - - - - - - - - For more updates on courses and tips follow us on: - Facebook : https://www.facebook.com/Simplilearn - Twitter: https://twitter.com/simplilearn - LinkedIn: https://www.linkedin.com/company/simplilearn - Website: https://www.simplilearn.com Get the android app: http://bit.ly/1WlVo4u Get the iOS app: http://apple.co/1HIO5J0
Views: 13653 Simplilearn
Troubleshooting SQL Server IO Performance/Bottleneck - Part 4 – PAGEIOLATCH Wait Type
 
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In this video, you will understand how to use PAGEIOLATCH Wait Type metrics to detect/identify IO slowdown. Video resources including presentation, demo files, code snippets and more learning material is available on http://www.dataplatformgeeks.com/ (Join for free and access all the resources) Connect With The Speaker (Amit Bansal) -Follow on Twitter: https://twitter.com/A_Bansal -Follow on FaceBook at http://www.facebook.com/amit.r.bansal -Follow on LinkedIN: http://www.linkedin.com/in/amitbansal2010 -Facebook Page: https://www.facebook.com/AmitRSBansal/ Connect with SQLMaestros: http://sqlmaestros.com/ -http://www.twitter.com/SQLMaestros -https://www.facebook.com/SQLMaestros -Email us: [email protected] Have technical questions? Join the largest SQL group on FB www.facebook.com/groups/theSQLGeeks Our LinkedIn group https://www.linkedin.com/groups/6753546 DataPlatformGeeks (DPG) Community Join the fastest growing community of data & analytics professionals Why Join DPG? http://www.dataplatformgeeks.com/ -Attend all events hosted by DPG, including SQLMaestros Special Events -Get access to free videos, labs, magazines and host of learning resources -Download all events & conference material -Learn new skills. Sharpen existing skills -Be part of Asia’s Largest Data/Analytics Community -Opportunity to be a regional mentor & speaker at our events -Immense technical & professional development Do you know about Data Platform Summit? http://www.DPS10.com
Views: 925 SQLMaestros
Sculpture Project
 
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scpt
Views: 33 ayosoprano19
DB2 Basics Tutorial  Part 7 - DB CFG - Collating sequence
 
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DB2 Important DB parameters Link to dba convertor : https://play.google.com/store/apps/details?id=in.blogspot.db2nix.dbaconvertor&hl=en App name : aconv
Views: 2382 db2 nix
How to show images from database in gridview in asp net
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2015/08/how-to-show-images-from-database-in.html Slides http://csharp-video-tutorials.blogspot.com/2015/08/how-to-show-images-from-database-in_13.html All ASP .NET Text Articles http://csharp-video-tutorials.blogspot.com/p/free-aspnet-video-tutorial.html All ASP .NET Slides http://csharp-video-tutorials.blogspot.com/p/aspnet-slides.html ASP.NET Playlist https://www.youtube.com/playlist?list=PL4cyC4G0M1RQcB4IYS_zwkyBwMyx5AnDM All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists In this video we will discuss how to retrieve images from database and display them in gridview using c# and asp.net. This is continuation to Parts 168 and 169. Please watch Parts 168 and 169 from ASP.NET tutorial for beginners tutorial. When the web page initially loads, all the images should be retrieved from the database table and displayed in the GridView control. When you click upload button, the new image should be uploaded to the database, and the GridView should refresh and display the image you just uploaded.
Views: 65043 kudvenkat

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