Enabling All Triggers in SQL Server

In SQL Server, triggers are used to enforce business rules, maintain data integrity, and perform actions automatically when certain events occur. However, there may be situations where you need to enable all triggers in a database. Here's how to do it.

Using the `ENABLE TRIGGER` Statement

The simplest way to enable all triggers in a database is to use the `ENABLE TRIGGER` statement. However, this method requires you to specify the name of each trigger individually. Here's an example:

ENABLE TRIGGER trg_table1_insert ON TABLE table1; ENABLE TRIGGER trg_table2_update ON TABLE table2; ENABLE TRIGGER trg_table3_delete ON TABLE table3; ... 

This method can be tedious if you have a large number of triggers in your database.

Using a Script to Enable All Triggers

A more efficient way to enable all triggers in a database is to use a script that generates the `ENABLE TRIGGER` statements for you. Here's an example:

DECLARE @sql NVARCHAR(MAX) = ''; SELECT @sql += 'ENABLE TRIGGER ' QUOTENAME(s.name) + '.' + QUOTENAME(t.name) + 'N TABLE ' QUOTENAME(t.name) + '; ' FROM sys.triggers t INNER JOIN sys.tables st ON t.parent_id = st.object_id INNER JOIN sys.schemas s ON st.schema_id = s.schema_id; EXEC sp_executesql @sql; 

This script uses the `sys.triggers`, `sys.tables`, and `sys.schemas` system views to generate a list of all triggers in the database, and then executes the `ENABLE TRIGGER` statements using the `sp_executesql` stored procedure.

Using the `sp_MSforeachtable` Stored Procedure

Another way to enable all triggers in a database is to use the `sp_MSforeachtable` stored procedure. Here's an example:

EXEC sp_MSforeachtable 'ENABLE TRIGGER ALL ON?'; 

This stored procedure executes the `ENABLE TRIGGER` statement for each table in the database, enabling all triggers on each table.

Important Note

Before enabling all triggers in a database, make sure you have reviewed the triggers and are aware of their functionality, as enabling all triggers can have unintended consequences.

Example Output

Here's an example output of the script that enables all triggers in a database:

ENABLE TRIGGER trg_table1_insert ON TABLE table1; ENABLE TRIGGER trg_table2_update ON TABLE table2; ENABLE TRIGGER trg_table3_delete ON TABLE table3; ... 

This output shows the `ENABLE TRIGGER` statements that are executed to enable all triggers in the database.