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What is a statement trigger?
A statement trigger fires once per triggering event and regardless of whether any rows are modified by the insert, update, or delete event. row triggers. A row trigger fires once for each row affected by the triggering event. If no rows are affected, the trigger does not fire.
What are statement-level triggers explain with example?
Statement-level triggers execute once for each transaction. For example, if a single transaction inserted 500 rows into the Customer table, then a statement-level trigger on that table would only be executed once.
What are the advantages uses of using triggers?
Triggers offer benefits to your business. These benefits are: Faster application development. Because the database stores triggers, you do not have to code the trigger actions into each database application.
What are triggers and what its use?
Trigger: A trigger is a stored procedure in database which automatically invokes whenever a special event in the database occurs. For example, a trigger can be invoked when a row is inserted into a specified table or when certain table columns are being updated.
What can a statement Level trigger be used for?
Due to its features, a statement-level trigger is not often used for data-related activities like auditing the changes of the data in the associated table. It’s typically used to enforce extra security measures on the kind of transaction that may be performed on a table.
What does a trigger do in SQL Server?
Introduction to SQL Triggers A trigger is a piece of code executed automatically in response to a specific event occurred on a table in the database. A trigger is always associated with a particular table. If the table is deleted, all the associated triggers are also deleted automatically.
How does the create or replace trigger statement work?
Basically, the CREATE OR REPLACE TRIGGER creates a new trigger if it does not exist and changes the trigger if it does exist. The CREATE OR REPLACE TRIGGER statement is similar to the CREATE TRIGGER statement as follows:
When to fire a statement Level Trigger in Oracle?
A statement-level trigger is fired whenever a trigger event occurs on a table regardless of how many rows are affected. In other words, a statement-level trigger executes once for each transaction.