Can MySQL Triggers Be Fired by SELECT Statements?

Can MySQL Triggers Fire on SELECT Statements?

You are attempting to trigger an INSERT action on table X whenever a SELECT statement retrieves data from table Y. This raises the question of whether MySQL offers a mechanism to achieve this objective solely using triggers.

Limitations of MySQL Triggers

Unfortunately, MySQL triggers are designed to respond specifically to INSERT, UPDATE, or DELETE operations. They do not extend their capabilities to SELECT statements.

Alternative Solution for Rare Scenarios

While MySQL triggers may not be suitable in this scenario, a workaround exists that involves the use of stored procedures:

1. Create Stored Procedures for the SELECT Queries:

   • Create stored procedures that perform the desired SELECT operations on table X.

2. Restrict Direct SELECT Access:

   • Modify user permissions to prevent direct SELECT statements on table X. Ensure that users can only access the data through the stored procedures you created.

3. Incorporate INSERT Actions into Stored Procedures:

   • Alter the stored procedures to include a call to another stored procedure that executes the INSERT action or other desired operation based on the SELECT results.

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