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Description

This error indicates that a function or stored procedure within MySQL was called with one or more arguments that are not valid. This typically means an argument has an incorrect data type, an out-of-range value, or an invalid format, preventing the function from executing successfully.

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Error Message

Invalid argument error: %s in function %s.

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Known Causes

4 known causes

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Mismatched Data Type

An argument was supplied with a data type that does not correspond to the function's expected parameter type (e.g., passing a string where an integer is required).

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Out-of-Range Value

The value provided for an argument falls outside the acceptable numerical or categorical range defined for that parameter (e.g., a negative number for a positive-only parameter).

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Incorrect Argument Format

An argument's value does not adhere to the specific format required by the function, such as a malformed date string or an invalid JSON object.

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Unexpected NULL Value

A NULL value was passed to a function parameter that explicitly requires a non-NULL argument to operate correctly.

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Solutions

3 solutions available

1. Verify Function/Procedure Arguments easy

Ensure that the arguments passed to a MySQL function or stored procedure match their defined data types and number.

1

Identify the specific function or stored procedure that is causing the error. The error message will often contain the name of the function or procedure (e.g., '%s in function %s').

2

Examine the definition of the identified function or stored procedure. You can use `SHOW CREATE FUNCTION function_name;` or `SHOW CREATE PROCEDURE procedure_name;`.

SHOW CREATE FUNCTION my_function;
SHOW CREATE PROCEDURE my_procedure;

3

Compare the arguments you are passing to the function/procedure with the parameters defined in its signature. Pay close attention to data types, order, and the number of arguments.

4

Correct any discrepancies in the arguments being passed. For example, if a function expects an integer but receives a string, you may need to cast the argument or pass a valid integer.

-- Example: Casting a string to an integer
CALL my_procedure('123'); -- If '123' is expected as an INT

-- Example: Passing a correct data type
INSERT INTO my_table (id, name) VALUES (1, 'Example'); -- If id expects INT

2. Check Data Type Compatibility in Queries easy

Ensure data types are compatible when performing operations, especially in WHERE clauses or when assigning values.

1

Review the SQL query that triggered the error. Look for places where you are comparing or assigning values between columns or literals.

2

Verify the data types of the columns involved in the operation. Use `DESCRIBE table_name;` or `SHOW COLUMNS FROM table_name;` to inspect table schemas.

DESCRIBE my_table;
SHOW COLUMNS FROM another_table;

3

If there's a mismatch (e.g., comparing a VARCHAR to a DATETIME without proper conversion), use appropriate MySQL functions to cast or convert the data types. Common functions include `CAST()`, `CONVERT()`, `DATE_FORMAT()`, `STR_TO_DATE()`.

-- Example: Comparing a date string to a DATE column
SELECT * FROM events WHERE event_date = STR_TO_DATE('2023-10-27', '%Y-%m-%d');

-- Example: Casting a number to a string
SELECT * FROM products WHERE CAST(product_id AS CHAR) LIKE '12%';

3. Inspect System Variables and Settings medium

Certain system variables, when set to invalid or incompatible values, can lead to this error, especially in advanced configurations.

1

Consider if recent changes have been made to MySQL server configuration (`my.cnf` or `my.ini`).

2

Check the values of relevant system variables using `SHOW VARIABLES;` or `SHOW GLOBAL VARIABLES;`.

SHOW VARIABLES LIKE '%buffer%';
SHOW GLOBAL VARIABLES LIKE '%sql_mode%';

3

Consult MySQL documentation for the specific variable that might be causing issues. For instance, an incorrectly formatted date or time in a variable that expects it could cause problems.

4

If a variable is found to have an invalid value, correct it in the configuration file and restart the MySQL server. Alternatively, you can set it dynamically (for session or global scope) using `SET GLOBAL variable_name = value;` or `SET SESSION variable_name = value;`.

-- Example: Setting a valid SQL mode (use with caution)
SET GLOBAL sql_mode = 'STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION';

-- Example: Restarting the MySQL service (Linux)
sudo systemctl restart mysql

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Related Errors

5 related errors

MySQL Error 3047: Invalid Argument Provided