MySQL · December 20, 2023

How to Fix MySQL Error 1106 - SQLSTATE: 42000 (ER_UNKNOWN_PROCEDURE) Unknown procedure '%s'

How to Fix MySQL Error 1106 - SQLSTATE: 42000 (ER_UNKNOWN_PROCEDURE) Unknown procedure '%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 1106 - SQLSTATE: 42000 (ER_UNKNOWN_PROCEDURE) Unknown procedure '%s'. This error occurs when a stored procedure or function is called, but MySQL cannot find it. In this article, we will explore the causes of this error and provide solutions to fix it.

Causes of MySQL Error 1106

There are several reasons why you might encounter MySQL Error 1106:

  • Missing or incorrect procedure name: The most common cause of this error is a misspelled or incorrect procedure name. Make sure you are using the correct name when calling the procedure.
  • Missing or incorrect database: If the procedure is located in a different database than the one you are currently connected to, you need to specify the database name along with the procedure name.
  • Missing or incorrect schema: If the procedure is located in a different schema within the same database, you need to specify the schema name along with the procedure name.
  • Missing or incorrect privileges: If you do not have the necessary privileges to execute the procedure, MySQL will return this error. Make sure you have the required privileges.

How to Fix MySQL Error 1106

Here are some solutions to fix MySQL Error 1106:

1. Check the Procedure Name

Double-check the spelling and syntax of the procedure name. Make sure it is correct and matches the name used when creating the procedure.

2. Specify the Database Name

If the procedure is located in a different database, use the following syntax to call the procedure:

CALL database_name.procedure_name();

Replace database_name with the actual name of the database and procedure_name with the name of the procedure.

3. Specify the Schema Name

If the procedure is located in a different schema within the same database, use the following syntax to call the procedure:

CALL schema_name.procedure_name();

Replace schema_name with the actual name of the schema and procedure_name with the name of the procedure.

4. Check Privileges

Ensure that you have the necessary privileges to execute the procedure. You can use the following command to grant the required privileges:

GRANT EXECUTE ON procedure_name TO user_name;

Replace procedure_name with the name of the procedure and user_name with the name of the user who needs the privileges.

Summary

MySQL Error 1106 - SQLSTATE: 42000 (ER_UNKNOWN_PROCEDURE) Unknown procedure '%s' occurs when MySQL cannot find a stored procedure or function. This error can be caused by misspelled or incorrect procedure names, missing or incorrect database or schema names, or insufficient privileges. To fix this error, double-check the procedure name, specify the correct database or schema name if necessary, and ensure that you have the required privileges. If you need assistance with MySQL hosting or have any other questions, please visit Server.HK.

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