How to Fix MySQL\'s \'Incorrect datetime value: \'0000-00-00 00:00:00\'\' Error?

MySQL 'Incorrect datetime value' Error: Dealing with '0000-00-00 00:00:00' Dates

When upgrading MySQL databases from older versions, users may encounter the error "Incorrect datetime value: '0000-00-00 00:00:00' for column 'created' at row 1" while attempting to modify table columns. This error arises due to outdated datetime values stored in the database.

Background

MySQL 5.1 uses a "0000-00-00 00:00:00" value to represent timestamps that are unknown or invalid, such as empty fields. However, later versions of MySQL, like 5.7, enforce stricter validation for datetime values, causing this error to occur when importing tables or modifying date columns.

Troubleshooting Steps

To resolve this error, follow these steps:

1. Check for occurrences of '0000-00-00 00:00:00' in the affected columns:

SELECT * FROM users WHERE created = '0000-00-00 00:00:00';

2. If '0000-00-00 00:00:00' values exist, update them with an acceptable datetime value, such as '1970-01-01 00:00:00':

UPDATE users SET created = '1970-01-01 00:00:00' WHERE created = '0000-00-00 00:00:00';

3. Alternatively, you can use the following query to update all '0000-00-00 00:00:00' values to NULL:

UPDATE users SET created = NULL WHERE CAST(created AS CHAR(20)) = '0000-00-00 00:00:00';

Important Note

Before updating any values, ensure that the chosen datetime value is compatible with the application's requirements. Empty fields may have specific meanings in the application logic, so replacing them with NULL or a default date may cause issues.

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