Can we use procedure in trigger?

Can we use procedure in trigger?

Yes you can fire a procedure from a Trigger. But, keep in mind that trigger & procedur e should not acess the same table. Yes you can. Just keep in mind that a trigger can fire for every row affected with a DML trigger.

How do you call a trigger inside a stored procedure in SQL Server?

Procedure

1. Write a basic CREATE TRIGGER statement specifying the desired trigger attributes. ...
2. In the trigger action portion of the trigger you can declare SQL variables for any IN, INOUT, OUT parameters that the procedure specifies. ...
3. In the trigger action portion of the trigger add a CALL statement for the procedure.

Can we call trigger manually?

No,triggers are not executed manually. Triggers are special types of Stored Procedures that are defined to execute automatically in place of or after data modifications. They can be executed automatically on the INSERT, DELETE and UPDATE triggering actions.

Can procedure Call function?

A procedure can call a function inside the program's body.

What is difference between stored procedure and trigger?

Stored procedures are a pieces of the code in written in PL/SQL to do some specific task. Stored procedures can be invoked explicitly by the user. ... On the other hand, trigger is a stored procedure that runs automatically when various events happen (eg update, insert, delete).

What are the types of triggers?

Types of Triggers

• Row Triggers and Statement Triggers.
• BEFORE and AFTER Triggers.
• INSTEAD OF Triggers.
• Triggers on System Events and User Events.

How do you call a trigger?

Procedure

1. Write a basic CREATE TRIGGER statement specifying the desired trigger attributes. ...
2. In the trigger action portion of the trigger you can declare SQL variables for any IN, INOUT, OUT parameters that the procedure specifies. ...
3. In the trigger action portion of the trigger add a CALL statement for the procedure.

Can we call trigger inside trigger?

In addition to being triggered by DML and DDL operations, triggers in SQL Server can also be triggered by other triggers. This type trigger is called a nested trigger in SQL or a recursive trigger.

How do you execute a trigger?

To invoke a trigger, a user must have the privilege to execute the data change statement associated with the trigger event. Similarly, to successfully invoke an SQL routine or dynamic compound statement a user must have the EXECUTE privilege on the routine.

What is difference between stored procedure and function?

The function must return a value but in Stored Procedure it is optional. Even a procedure can return zero or n values. Functions can have only input parameters for it whereas Procedures can have input or output parameters. Functions can be called from Procedure whereas Procedures cannot be called from a Function.

What are stored procedures and triggers?

Stored procedures and triggers are Java routines that are executed by SQL-92 server processes. A trigger is a procedure that is invoked automatically when certain database events occur. A stored procedure is a procedure that is explicitly invoked by a client application, another stored procedure, or a trigger procedure.

What is the function of a stored procedure?

Stored Procedures is a tool that is used to perform any specific operations like Insert, Update or Delete in our database recursively and it can be used to alter or update any records in database. Unless function that returns only single value, stored procedures can return zero and many values at a time.

What is the difference between function and stored procedure?

The difference between stored procedure and function is that a stored procedure is a set of SQL statements that can be executed on the RDBMS again and again while a function is a set of instructions written using a programming language that can be executed again and again.

What is a SQL Server trigger?

A SQL Server trigger is a piece of procedural code, like a stored procedure which is only executed when a given event happens. There are different types of events that can fire a trigger. Just to name you a few, the insertion of rows in a table, a change in a table structure and even a user logging into a SQL Server instance.