Why Am I Getting MySQL Error 1292: Truncated Incorrect DOUBLE Value Even Without DOUBLE Fields?

Error 1292: Investigating Truncated DOUBLE Value in MySQL

Problem Description:

When encountering the following error:

#1292 - Truncated incorrect DOUBLE value:

it's easy to assume that a DOUBLE data type is the culprit. However, this error can arise even when there is no field or data related to DOUBLE values.

Detailed Explanation:

This error typically occurs when MySQL attempts to compare a numeric value with a non-numeric value, leading to truncation during data conversion. In the provided query, the potential cause of the error is the comparison in the WHERE clause:

ON ac.company_code = ta.company_code

If the data types of ac.company_code and ta.company_code differ (e.g., one is an integer while the other is a string), MySQL may attempt to convert one of the values to match the other, resulting in the truncation error.

Solving the Issue:

To resolve the issue, verify that the data types of ac.company_code and ta.company_code are compatible. If they are not, consider using an explicit CAST to convert one of the values to match the other, or disable strict mode by setting sql_mode = 'ALLOW_INVALID_DATES' in the MySQL configuration.

Example:

ON CAST(ac.company_code AS UNSIGNED) = CAST(ta.company_code AS UNSIGNED)

Disabling strict mode will allow MySQL to cast incompatible values automatically, treating warnings as informational messages rather than errors.

By understanding the underlying cause of the truncation error, developers can effectively diagnose and solve this issue, ensuring the smooth execution of their queries.

The above is the detailed content of Why Am I Getting MySQL Error 1292: Truncated Incorrect DOUBLE Value Even Without DOUBLE Fields?. For more information, please follow other related articles on the PHP Chinese website!