MySQL · December 20, 2023

How to Fix MySQL Error 1318 - SQLSTATE: 42000 (ER_SP_COND_MISMATCH) Undefined CONDITION: %s

How to Fix MySQL Error 1318 - SQLSTATE: 42000 (ER_SP_COND_MISMATCH) Undefined CONDITION: %s

MySQL is a popular open-source relational database management system used by many websites and applications. However, like any software, it can encounter errors that can disrupt its normal operation. One such error is MySQL Error 1318 - SQLSTATE: 42000 (ER_SP_COND_MISMATCH) Undefined CONDITION: %s. In this article, we will explore the causes of this error and provide step-by-step instructions on how to fix it.

Understanding MySQL Error 1318

MySQL Error 1318 occurs when there is a mismatch between the conditions specified in a stored procedure or function and the conditions defined in the associated SIGNAL or RESIGNAL statement. This error typically occurs when you try to create or alter a stored procedure or function that includes a SIGNAL or RESIGNAL statement.

The error message you may encounter will look something like this:

ERROR 1318 (42000): SQLSTATE: 42000 (ER_SP_COND_MISMATCH) Undefined CONDITION: %s

Causes of MySQL Error 1318

There are several possible causes for MySQL Error 1318:

  • Missing or mismatched condition names: The condition name specified in the SIGNAL or RESIGNAL statement does not match any condition defined in the stored procedure or function.
  • Incorrect condition order: The conditions in the SIGNAL or RESIGNAL statement are not in the same order as the conditions defined in the stored procedure or function.
  • Missing or mismatched condition handlers: The condition handlers specified in the stored procedure or function do not match the conditions defined in the SIGNAL or RESIGNAL statement.

Fixing MySQL Error 1318

To fix MySQL Error 1318, follow these steps:

Step 1: Identify the Problematic Stored Procedure or Function

First, identify the stored procedure or function that is causing the error. You can use the following command to list all stored procedures and functions in your MySQL database:

SHOW PROCEDURE STATUS;
SHOW FUNCTION STATUS;

Look for the procedure or function with the name mentioned in the error message.

Step 2: Check the Condition Names

Next, verify that the condition names specified in the SIGNAL or RESIGNAL statement match the condition names defined in the stored procedure or function. Make sure there are no typos or missing conditions.

Step 3: Verify the Condition Order

Ensure that the conditions in the SIGNAL or RESIGNAL statement are in the same order as the conditions defined in the stored procedure or function. The order of the conditions is crucial for proper error handling.

Step 4: Check the Condition Handlers

Verify that the condition handlers specified in the stored procedure or function match the conditions defined in the SIGNAL or RESIGNAL statement. The condition handlers should handle the same conditions as specified in the SIGNAL or RESIGNAL statement.

Step 5: Update the Stored Procedure or Function

If you find any discrepancies in the condition names, order, or handlers, update the stored procedure or function accordingly. Make sure the conditions and handlers match exactly.

Step 6: Test the Updated Stored Procedure or Function

After making the necessary changes, test the updated stored procedure or function to ensure that the error no longer occurs. Execute the procedure or function and verify that it runs without any issues.

Summary

MySQL Error 1318 - SQLSTATE: 42000 (ER_SP_COND_MISMATCH) Undefined CONDITION: %s can be fixed by carefully examining the stored procedure or function that is causing the error. Verify the condition names, order, and handlers to ensure they match between the SIGNAL or RESIGNAL statement and the stored procedure or function. By following the steps outlined in this article, you can resolve this error and ensure the smooth operation of your MySQL database.

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