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Search results “Oracle bind params” for the 2017
PL/SQL tutorial Bind Variable in PL/SQL By Nayabsoft
 
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we will discuss Variables in Pl/SQL. A variable is nothing but a name given to a storage area that our programs can manipulate. Each variable in PL/SQL has a specific data type, which determines the size and the layout of the variable's memory; the range of values that can be stored within that memory and the set of operations that can be applied to the variable. The name of a PL/SQL variable consists of a letter optionally followed by more letters, numerals, dollar signs, underscores, and number signs and should not exceed 30 characters. By default, variable names are not case-sensitive. You cannot use a reserved PL/SQL keyword as a variable name. PL/SQL programming language allows to define various types of variables, such as date time data types, records, collections, etc. which we will cover in subsequent chapters. For this video, let us study only basic variable types.
Views: 467 Nayabsoft
68. Bind Variables in PL/SQL Oracle
 
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In this video you will learn about Bind Variables in PL/SQL Oracle. 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: 3252 ITORIAN
How to Tune Oracle SQL - Lesson 4 - Understanding The Bind Step
 
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Learn how to tune Oracle Database SQL! In this lesson you will learn that before SQL can be executed it must be parsed and part of the parse process is "bind". Learn what bind variables are, how variables impact SQL, why they are so important, when to use them and when not to use them. Writing SQL that performs well means understanding what Oracle is doing to the SQL: how it is executing the code, and why it is executing it that way. Then make changes needed to let Oracle run the code in a more efficient manner.
Views: 781 SkillBuilders
pl SQL tutorial in Hindi (lec 5 pl sql bind variables)
 
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http://www.bitsinfotec.in/ bind variable in plsql in Hindi, what is bind variable in plsql
Views: 818 JavaTreePoint
02-  Oracle PL/SQL Arabic course – Variables Part 1 المتغيرات – الجزء الأول
 
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تعتبر المتغيرات (Variables) واحدة من أهم الموضوعات فى أى لغة برمجة و لن تجد أى لغة برمجة لا تستخدم المتغيرات. فى درس اليوم من سلسلة دروس دورة شرح PL/SQL نتحدث عن المتغيرات و نتطرق الى الموضوعات التالية: 1- ماهى المتغيرات (Variables) ؟ 2- تعريف المتغيرات (Variable Declaration). 3- كيف تكتب اسم متغير بطريقة سليمة (valid variable name) . 4- ما هى الثوابت (Constants). -------------------------------------------------------------------------------------------- تواصل معانا علي الفيس بوك من هنا : https://www.facebook.com/askgad .......................................­.................... تواصل معانا علي موقعنا من هنا : https://www.askgad.com
Views: 5305 Ask Gad
Query Parameter in Oracle Datapump
 
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Hello Friends Today, In this video I used to show you How to Used Data pump Query Parameter. In Query Parameter we can take export backup using particular query. Suppose iwant to take a export backup of EMP table but in this table i want to take backup only department no 20. so it is possible . please watch this video and subscribe In Some Methods i am showing you. Method 1: (Using Parameter File) ------------------------------------------------------------ 1. Create Table Test. (Create table scott.test as select * from scott.emp;) 2. Create Par file. ------------------------------------------------------------ directory=dump dumpfile=d1.dmp tables='SCOTT . TEST' query=TEST:"WHERE deptno=20" ---------------------------------------------------------------- Save this file test.par --------------------------------------------------------------- 3. Go to Command Prompt Export expdp system/admin parfile='/u01/app/parag/test.par’  Import impdp system/admin directory=dump dumpfile=d1.dmp tables=‘SCOTT . TEST‘ ------------------------------------------------------------------------------------- Method 2: ------------------------------------------------------------ 1. Create Table Test. (Create table scott.test as select * from scott.emp;) 2. Go to Command Prompt Export expdp system/admin directory=dump dumpfile=d2.dmp tables=‘SCOTT . TEST ’ query=TEST:\”WHERE deptno=20\”  Import impdp system/admin directory=dump dumpfile=d2.dmp tables=‘SCOTT . TEST ' -----------------------------------------------------------------------------------------------------------
Views: 419 Parag Mahalle
PL/SQL tutorial 71: PL/SQL SYS_RefCursor in Oracle Database by Manish Sharma
 
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RebellionRider.com presents PL/SQL Sys_RefCursor in Oracle Database. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog:http://bit.ly/ref-cursor-5 What are actual and formal parameters in programming http://bit.ly/actual-vs-formal Find the Script here https://github.com/RebellionRider/pl-sql-tut-71 Previous Tutorial ►Weak Ref Cursor https://youtu.be/_u7xkaRzai8 ►Strong Ref Cursor https://youtu.be/81uJi_x-3sQ ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the 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: 5734 Manish Sharma
Oracle execute immediate dynamic sql procedure in and out parameters Part 7
 
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Oracle SQL PLSQL and Unix Shell Scripting
Views: 809 Sridhar Raghavan
014-Oracle SQL 12c: Substitution variables part 1
 
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تعلم اوراكل حتى الاحتراف تعلم اوراكل من الصفر
Views: 4481 khaled alkhudari
79. UPDATE and DELETE using Cursor in PL/SQL Oracle
 
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In this video you will learn about UPDATE and DELETE using Cursor in PL/SQL Oracle. 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: 3871 ITORIAN
Oracle execute immediate dynamic sql procedure in parameter Part 6
 
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Oracle SQL PLSQL and Unix Shell Scripting
Views: 764 Sridhar Raghavan
Oracle execute immediate dynamic sql  passing null value to bind argument Part 9
 
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Oracle SQL PLSQL and Unix Shell Scripting
Views: 285 Sridhar Raghavan
CREATE DYNAMIC REPORT USING LEXICAL PARAMETERS
 
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CREATE DYNAMIC REPORT USING LEXICAL PARAMETERS
Views: 823 nasim utube
DYNAMIC SQL WITH EXECUTE IMMEDIATE IN ORACLE PL/SQL WITH EXAMPLE
 
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The audio and video now synced. Ever tried creating a table inside a PL SQL block, or a function or a procedure? If yes, then you would know that it would raise an error, as DDL statements are not allowed inside a PL/SQL Block. So the solution to such a case, where you want to generate tables, or sequences or want to execute any DDL statement on the fly, then use synamic sql. Dynamic SQL statment will allow you to create state statements on the fly and then you can execute them using the execute immediate statement. This video tutorial demonstrates on this topic of using synamic sql with execute immediate in a PL/SQL block.
Views: 4656 Kishan Mashru
oracle reports with lexical parameter
 
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oracle reports 10g
Views: 168 maha zaman
Stored Procedures in PL/SQL | Oracle PL/SQL Tutorial Videos | Mr.Vijay Kumar
 
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Stored Procedures:- A Stored Procedure is also a Named PL/SQL block the accepts some input in the form of parameters and performs some task and many or many not returns a value Procedures are created to perform one or more dml operations over database.
Views: 43906 Naresh i Technologies
Oracle Database11g tutorials 8: how to use SUBSTITUTION VARIABLES in detail
 
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This SQL tutorial and oracle database 11g tutorial for beginners it will show you how to use SUBSTITUTION VARIABLES in detail to retrieve data It will build up your logic how we use SUBSTITUTION VARIABLES statements. Tool used in this tutorial is SQL developer. If you are preparing for SQL certification you can use my tutorials. These SQL tutorial is a part of free training. Email [email protected] Facebook. https://www.facebook.com/himanshu dovriyal Thanks for watching,linking,commenting,sharing my videos ============ I will try my best to give you perfect knowledge about this full course. ===============
Views: 153 Oracle Life
Calling Report in Oracle Form 10g With Parameter.
 
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This is most important part of an Application. Calling Report. But sometimes we feel problem in calling Report. I tried to make it so much easy for beginners. Please follow it and try yourself. Background music downloaded from Youtube music library. My all links ============= My Youtube Channel : https://www.youtube.com/c/MukulAhmed420 My Facebook Account: https://www.facebook.com/mukul.ahmed.148 My Google+ Account : https://plus.google.com/u/0/+MukulAhmed420 My Twitter Account : https://twitter.com/mukul_420 My Linkedin Account: https://www.linkedin.com/in/mukul-ahmed-737844b1?trk=nav_responsive_tab_profile My hi5 Account : http://www.hi5.com/profile.html?uid=6022709819 My okcupid Account : https://www.okcupid.com/profile/mukul_420
Views: 5601 Mukul Ahmed
PL/SQL tutorial 73: Bulk Collect with SELECT-INTO statement in Oracle Database
 
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RebellionRider.com presents a PL/SQL tutorial on how to use the BULK COLLECT clause with SELECT INTO statement in Oracle Database by Manish Sharma. In this tutorial, you will also learn how to overcome the overhead caused by context switch and improve the query performance. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/bulk-collect-2 Previous Tutorial ►Introduction to Bulk Collect: https://youtu.be/CrJSlf_m3yA ►PL/SQL Tutorial 51-Nested Table: https://youtu.be/EUYyiFCzU0I ►Collection Method Count:https://youtu.be/NNq80CcC5K8 ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the 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: 9445 Manish Sharma
Oracle dynamic sql select while opening ref cursor sys ref cursor Part 8
 
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Oracle SQL PLSQL and Unix Shell Scripting
Views: 1360 Sridhar Raghavan
PL/SQL tutorial 67: PL/SQL Ref Cursors In Oracle Database by Manish Sharma
 
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RebellionRider.com presents introduction to PL/SQL Ref Cursors / Cursor Variable in Oracle Database by Manish Sharma ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/ref-cursor-1 Previous Tutorial ►Database Cursor (Playlist): http://bit.ly/2x0JGXz ► Record Datatype (Playlist): http://bit.ly/2xkcHOr ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the 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: 11859 Manish Sharma
adding different column & matrix report and master_details&using bind parameter report solution
 
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adding different column & matrix report and master_details&using bind parameter report solution based on Oracle Report 10g complete solutions
Views: 62 Baizeed Rony
How Oracle SQL Query work
 
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This video will give to understanding of SQL Parsing, Syntatic check , semantic check, spool file check, Sql Optimization, row source generation and sql execution.
Views: 18403 amit wadbude
PL/SQL tutorial 65: PL/SQL Collection Method EXTEND in Oracle Database
 
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RebellionRider presents the PL/SQL Collection Method Extend in Oracle Database with Example by Manish Sharma. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/col-method-extend ► PL/SQL Collection Method EXTEND https://youtu.be/QLP9xq5l_oA ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the 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: 4703 Manish Sharma
67. Define Variables in PL/SQL Oracle
 
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In this video you will learn about Define Variables in PL/SQL Oracle. 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: 3065 ITORIAN
DevExpress Dashboards - Binding To a SQL Database
 
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This video shows you how to connect a dashboard to an SQL database and select data using Query Builder. You will also learn how to pass parameters to SQL queries/stored procedures and bind query and dashboard parameters. To learn more, see the topics from the following section: https://documentation.devexpress.com/#Dashboard/CustomDocument16132 Northwind database: https://msdn.microsoft.com/en-us/library/mt710790.aspx CustomerProductDetails stored procedure: http://www.sqlservercurry.com/2014/05/sql-server-stored-procedures-back-to_4.html
Views: 14255 DevExpress
Bind Variables 17
 
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Please watch: "Install Oracle Database 12c Release 2 on Windows 10 Professional 64 bit" https://www.youtube.com/watch?v=5705VFJmku0 -~-~~-~~~-~~-~-
Views: 50 Solution Wizard
66. Input Variables in Oracle SQL Plus
 
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In this video you will learn about Input Variables in Oracle SQL Plus. 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: 3217 ITORIAN
Query Builder date ranges and bind variables in Toad Data Point
 
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https://www.quest.com/products/toad-data-point/ Learn about using date ranges and bind variables in the Query Builder in Toad Data Point.
Views: 233 Quest
Oracle execute immediate dynamic sql DDL commands Part 1
 
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Oracle SQL PLSQL and Unix Shell Scripting
Views: 3286 Sridhar Raghavan
PL/SQL tutorial 49: Declare user define exception using PRAGMA EXCEPTION_INIT in Oracle Database
 
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RebellionRider.com presents PL/SQL Tutorial on How to declare user define exception using PRAGMA EXCEPTION_INIT in Oracle Database by Manish Sharma ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/user-define-exception-3 Previous Tutorial ► User-Define Exception using RAISE_APPLICATION_ERROR https://youtu.be/k3xCWONvRxY ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the 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: 16802 Manish Sharma
Prevent sql injection with dynamic sql
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2017/04/prevent-sql-injection-with-dynamic-sql.html Slides http://csharp-video-tutorials.blogspot.com/2017/04/prevent-sql-injection-with-dynamic-sql_5.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 SQL Server Tutorial Videos https://www.youtube.com/playlist?list=PL08903FB7ACA1C2FB 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 prevent SQL injection when using dynamic SQL. In Part 140, we have implemented "Search Page" using dynamic SQL. Since we have used parameters to build our dynamic SQL statements, it is not prone to SQL Injection attack. This is an example of good dynamic SQL implementation. I have seen lot of software developers, not just the beginners but even experienced developers, buidling their dynamic sql queries by concatenating strings instead of using parameters without realizing that they are opening the doors for SQL Injection. Please check my blog at the following link for code used in the demo. http://csharp-video-tutorials.blogspot.com/2017/04/prevent-sql-injection-with-dynamic-sql.html Since we are concatenating the user input values to build the dynamic sql statement, the end user can very easily inject sql. Imagine, what happens for example, if the user enters the following in the "Firstname" textbox. ' Drop database SalesDB -- With the above SQL injected into the "Firstname" textbox, if you click the "Search" button, the following is the query which is sent to SQL server. This will drop the SalesDB. Select * from Employees where 1 = 1 AND FirstName = '' Drop database SalesDB --' On the other hand, if you use parameters to build your dynamic SQL statements, SQL Injection is not an issue. The following input in the "Firstname" textbox, would not drop the SalesDB database. ' Drop database SalesDB -- The text the user has provided in the "Firstname" textbox is treated as the value for @Firstname parameter. The following is the query that is generated and executed. exec sp_executesql N'Select * from Employees where 1 = 1 AND [email protected]',N'@FirstName nvarchar(26)',@FirstName=N''' Drop database SalesDB --' We don't have this problem of sql injection if we are using stored procedures. "SearchPageWithoutDynamicSQL.aspx" is using the stored procedure "spSearchEmployees" instead of dynamic SQL. The same input in the "Firstname" texbox on this page, would generate the following. Notice, whatever text we typed in the "Firstname" textbox is treated as the value for @FirstName parameter. exec spSearchEmployees @FirstName=N''' Drop database SalesDB --' An important point to keep in mind here is that if you have dynamic SQL in your stored procedure, and you are concatenating strings in that stored procedure to build your dynamic sql statements instead of using parameters, it is still prone to SQL injection. If this is not clear at the moment don't worry, we will discuss an example of this in out next video. So in summary, while dynamic sql provides great flexibility when implementing complicated logic with lot of permutations and combinations, if not properly implemented it may open doors for sql injection. Always use parameters to build dynamic sql statements, instead of concatenating user input values. Another benefit of using parameters to build dynamic sql statements is that it allows cached query plans to be reused, which greatly increases the performance. We will discuss an example of this in our upcoming videos.
Views: 18182 kudvenkat
PL/SQL tutorial | Cursor in Oracle Database 11g Complete guide
 
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Learn in depth about cursor in oracle database 11g, and why to use cursor.Writing Implicit cursor and explicit cursor following using 'for loop' inside cursor to fetch multiple records from oracle database. Cursor in Oracle Cursor in PL/SQL Oracle Cursor PL/SQL Cursor What is cursor in PL/SQL How to use cursor in PL/SQL Implicit cursor in PL/SQL Explicit cursor in PL/SQL A cursor is a pointer to this context area. PL/SQL controls the context area through a cursor. A cursor holds the rows (one or more) returned by a SQL statement. The set of rows the cursor holds is referred to as the active set. Implicit Cursors Implicit cursors are automatically created by Oracle whenever an SQL statement is executed, when there is no explicit cursor for the statement. Programmers cannot control the implicit cursors and the information in it. %FOUND Returns TRUE if an INSERT, UPDATE, or DELETE statement affected one or more rows or a SELECT INTO statement returned one or more rows. Otherwise, it returns FALSE. %NOTFOUND The logical opposite of %FOUND. It returns TRUE if an INSERT, UPDATE, or DELETE statement affected no rows, or a SELECT INTO statement returned no rows. Otherwise, it returns FALSE. %ISOPEN Always returns FALSE for implicit cursors, because Oracle closes the SQL cursor automatically after executing its associated SQL statement. %ROWCOUNT Returns the number of rows affected by an INSERT, UPDATE, or DELETE statement, or returned by a SELECT INTO statement. Explicit Cursors Explicit cursors are programmer-defined cursors for gaining more control over the context area. An explicit cursor should be defined in the declaration section of the PL/SQL Block. It is created on a SELECT Statement which returns more than one row Linkedin: https://www.linkedin.com/in/aditya-kumar-roy-b3673368/ Facebook: https://www.facebook.com/SpecializeAutomation/
Views: 2090 Specialize Automation
SQL: Lag
 
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In this tutorial, you'll learn how to make use of lag function in oracle sql 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.
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