How to Fix Syntax Errors in MySQL Stored Procedures for Transactional Operations?

Transactional Stored Procedures in MySQL

When modifying MySQL stored procedures to make them transactional, it's essential to follow the correct syntax and handle any potential errors effectively.

Using Transactions in a Stored Procedure

The provided stored procedure attempts to perform transactional operations within its body using BEGIN and COMMIT statements. However, it encounters an error preventing it from being saved.

Syntax Errors

Upon reviewing the code, two critical syntax errors are identified:

• Missing Commas in Exit Handler:
  The EXIT HANDLER declaration requires commas separating the conditions (SQLEXCEPTION, SQLWARNING). According to the syntax documentation, commas are mandatory.
• Missing Semicolon in Exit Handler:
  The END statement of the exit handler must be terminated with a semicolon. All statements in MySQL, including exit handlers, need a semicolon terminator.

Corrected Code

To fix the syntax errors, the corrected portion of the code should look like this:

<code class="sql">DECLARE EXIT HANDLER FOR SQLEXCEPTION, SQLWARNING
BEGIN
    ROLLBACK;
END;</code>

With these errors corrected, the stored procedure should function as intended, allowing you to perform transactional operations within it.

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