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Asked On2017-07-06 05:28:29 by:prajwalamv

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A stored procedure is a set of Structured Query Language (SQL) statements with an assigned name, which are stored in a relational database management system as a group, so it can be reused and shared by multiple programs.
Stored procedures can access or modify data in a database, but it is not tied to a specific database or object, which offers a number of advantages.
Benefits of using stored procedures
A stored procedure provides an important layer of security between the user interface and the database. It supports security through data access controls because end users may enter or change data, but do not write procedures. A stored procedure preserves data integrity because information is entered in a consistent manner. It improves productivity because statements in a stored procedure only must be written once.
A database trigger is special stored procedure that is run when specific actions occur within a database.  Most triggers are defined to run when changes are made to a table‚Äôs data.  Triggers can be defined to run instead of or after DML (Data Manipulation Language) actions such as INSERT, UPDATE, and DELETE.
Triggers help the database designer ensure certain actions, such as maintaining an audit file, are completed regardless of which program or user makes changes to the data.
The programs are called triggers since an event, such as adding a record to a table, fires their execution.
Triggers and their implementations are specific to database vendors.


Answerd on:2017-07-07 Answerd By:milan-ransingh

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