How do you read a trigger in a table?
Just go to your table name and expand the Triggers node to view a list of triggers associated with that table. Right click to modify your trigger. This way you can list out all the triggers associated with the given table.
What is the meaning of old and new in triggers?
About OLD and NEW Pseudorecords For an INSERT trigger, OLD contains no values, and NEW contains the new values. For an UPDATE trigger, OLD contains the old values, and NEW contains the new values. For a DELETE trigger, OLD contains the old values, and NEW contains no values.
How do you call a trigger in SQL?
Procedure
- Write a basic CREATE TRIGGER statement specifying the desired trigger attributes.
- In the trigger action portion of the trigger you can declare SQL variables for any IN, INOUT, OUT parameters that the procedure specifies.
- In the trigger action portion of the trigger add a CALL statement for the procedure.
Which clause specifies the table name on which the trigger is to be attached?
The CREATE TRIGGER statement is used to create the trigger. THE _____ clause specifies the table name on which the trigger is to be attached. The ______ specifies that this is an AFTER INSERT trigger. Explanation: The triggers run after an insert, update or delete on a table.
Which statement is used to create a trigger *?
Which statement is used to create a trigger? Explanation: In order to create a trigger, the CREATE TRIGGER statement is used. The definition indicates the particular type of statement for which the trigger activates and whether it activates before or after the rows are modified.
What are different events in triggers?
The Triggering Event or Statement
- An INSERT , UPDATE , or DELETE statement on a specific table (or view, in some cases)
- A CREATE , ALTER , or DROP statement on any schema object.
- A database startup or instance shutdown.
- A specific error message or any error message.
- A user logon or logoff.
What are the different triggers?
Types of Triggers
- Data Manipulation Language (DML) Triggers. DML triggers are executed when a DML operation like INSERT, UPDATE OR DELETE is fired on a Table or View.
- Data Definition Language (DDL) Triggers.
- LOGON Triggers.
- CLR Triggers.