use of Trigger in SQL

Ads

 
 

Share on Google+Share on Google+

Ajay Tiwari
use of Trigger in SQL
1 Answer(s)      5 years and 8 months ago
Posted in : SQL

Why we use the Trigger and what it's uses?

Ads
View Answers

March 15, 2012 at 4:37 PM


A database trigger is procedural code that is automatically executed in response to certain events on a particular table in a database. Triggers can restrict access to specific data, perform logging, or audit data modifications. Triggers supplement the standard capabilities of your database to provide a highly customized database management system. For example, you can use triggers to:

1)Automatically generate derived column values.

2)Enforce referential integrity across nodes in a distributed database

3)Enforce complex business rules

4)Provide transparent event logging

5)Provide auditing

6)Maintain synchronous table replicates

7)Gather statistics on table access

8)Modify table data when DML statements are issued against views

9)Publish information about database events, user events, and SQL statements to subscribing applications

10)Restrict DML operations against a table to those issued during regular business hours

11)Enforce security authorizations

12)Prevent invalid transactions


Ads









Related Tutorials/Questions & Answers:
using trigger - SQL
using trigger  sir i want to use this trigger in ado.net. how it is possible ? Create trigger tr1 on student after update as begin update m...-update-trigger.shtml http://www.roseindia.net/sql/trigger/mysql-trigger-after
Create After Update Trigger in SQL
Create After Update Trigger in SQL       After Trigger in SQL is fired before update... illustrate an example from 'Create After Update Trigger in SQL'. In order
Advertisements
Create Delete Trigger in SQL
Create Delete Trigger in SQL       Create Delete Trigger in SQL fire this trigger before... The Tutorial illustrate an example from 'Create Delete Trigger in SQL
How to trap Trigger Error - SQL
How to trap Trigger Error  Hi Guys, Can you please help with my problem?.. Is there a way in where I can trap all SQL error and place it under... NVARCHAR(2000) ) select * froM ERROR_LOG CREATE OR REPLACE TRIGGER
Create Before Insert Trigger in SQL
Create Before Insert Trigger in SQL       The Create Before Insert Trigger in SQL fires the trigger... Tutorial describe you a code on 'Create Before Insert Trigger in SQL'. To grasp
Create After Insert Trigger in SQL
Create After Insert Trigger in SQL       Create a Trigger is a special kind of stored procedure... from 'Create After Insert Trigger in SQL'. In this Example, we create
Create After Update Trigger in SQL
Create After Update Trigger in SQL       After Trigger in SQL is fired before update... illustrate an example from 'Create After Update Trigger in SQL'. In order
Create Before Update Trigger in SQL
Create Before Update Trigger in SQL       Create Before Update Trigger in SQL is used in SQL... Update Trigger in SQL' . To understand this example we create a table 'Stu
Create Before Update Trigger in SQL
Create Before Update Trigger in SQL       Create Before Update Trigger in SQL is used in SQL, if a trigger monitoring for changes to a column of the table
Create Before Insert Trigger in SQL
Create Before Insert Trigger in SQL       The Create Before Insert Trigger in SQL fires... The given Tutorial describe you a code on 'Create Before Insert Trigger in SQL
What is the use of DESC in SQL?
What is the use of DESC in SQL?  What is the use of DESC in SQL
Create Delete Trigger in SQL
Create Delete Trigger in SQL       Create Delete Trigger in SQL fire this trigger before... The Tutorial illustrate an example from 'Create Delete Trigger in SQL
trigger
trigger  write a trigger to see every manager must be highest salary
can i use trigger to insert data within a time period ?
can i use trigger to insert data within a time period ?  Hello sir, i... this trigger concept the data will be insert to each Employee's ID. Plz sir help me regarding this problem.how to solve this issue and how i will use this trigger
trigger
trigger  write a trigger program before insert into salary that it must not below Rs 1000
trigger
trigger  write a trigger program before insert into salary that it must not below Rs 1000
SQL Use
SQL Use       SQL Use... The Tutorial illustrate an example from 'SQL Use'. To understand and grasp the 'SQL Use' we create a database 'komal' using create database keyword
MySQL After Trigger
MySQL After Trigger This example illustrates how to create the trigger and what is the use it. In this example we create a table "Roseindia"...' and 'description'. A trigger is defined to activate when an INSERT, DELETE, or UPDATE
What is the use of Hibernate Native SQL?
What is the use of Hibernate Native SQL?  What is the use of Hibernate Native SQL? How it is useful in database access programming using the Hibernate framework? Thanks   Hibernate Native query is used used to run SQL
Describe the use of PL/SQL tables
Describe the use of PL/SQL tables  Describe the use of PL/SQL tables   Hi, PL/SQL tables are scalar arrays that can be referenced by a binary integer. They can be used to hold values for use in later queries
Create After Insert Trigger in SQL
Create After Insert Trigger in SQL       Create a Trigger is a special kind of stored... a example from 'Create After Insert Trigger in SQL'. In this Example, we
Trigger
Trigger       Mysql Trigger After Delete The Tutorial illustrate an example from 'Trigger After Delete' in Mysql. To understand
What is Trigger?
What is Trigger?  What is Trigger
Why we use Semicolon after SQL Statements?
Why we use Semicolon after SQL Statements?  Why we use Semicolon after SQL Statements?   Hi, Some database systems require a semicolon at the end of each SQL statement.The semicolon character is a statement
why we use ^ operator in sql, and what is the meaning of that operator?
why we use ^ operator in sql, and what is the meaning of that operator?  why we use ^ operator in sql, and what is the meaning of that operator
What is Trigger?
What is Trigger?  What is Trigger?   Hi, A trigger... and DELETE. The difference between a trigger and a stored procedure is that a trigger is activated or called when an event happens in a database table, a stored
how to use float datatype in mysql? - SQL
how to use float datatype in mysql?  how to use float datatype in mysql?  hi Chitra this code help u CREATE TABLE `paging` ( `Id` float(10,2) NOT NULL default '0.00', `name` varchar(255) default NULL
SQL
SQL Trigger query  Why we use the Trigger and what it's uses?   A database trigger is procedural code that is automatically executed... customized database management system. For example, you can use triggers to: 1
SQL
use of Trigger in SQL  Why we use the Trigger and what it's uses?   A database trigger is procedural code that is automatically executed... a highly customized database management system. For example, you can use triggers
SQL
What is Trigger in SQL  Why we use the Trigger and what it's uses?   A database trigger is procedural code that is automatically executed... a highly customized database management system. For example, you can use triggers
SQL
Trigger in SQL  Why we use the Trigger and what it's uses?   A database trigger is procedural code that is automatically executed... customized database management system. For example, you can use triggers to: 1

Ads

 
Advertisement null

Ads