Can I Trigger an INSERT Operation Using a SELECT Statement in MySQL?

Trigger on SELECT Statement in MySQL

Question:

Is it possible to execute an INSERT operation on a table upon selecting a record from another table in MySQL?

Answer:

No, MySQL triggers cannot be initiated by SELECT statements. Triggers are solely designed to respond to INSERT, UPDATE, or DELETE operations.

Workaround:

To address the need for running an INSERT action when selecting records, consider the following steps:

1. Create Stored Procedures for SELECT Operations: Define stored procedures that encapsulate the desired SELECT queries.
2. Restrict Direct SELECT Access: Limit user access to the underlying table and enforce usage of the stored procedures.
3. Add INSERT Operation to Stored Procedures: Enhance the stored procedures to include an additional call to another stored procedure that performs the INSERT operation.

This approach utilizes stored procedures as intermediaries for both SELECTing data and executing INSERT actions, effectively capturing the intent of triggers without relying on their limitations in MySQL.

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