MySQL updating nullable date column to NULL

问题

I have a nullable date column in a MySQL InnoDB table. How do I update that column to NULL when issuing an update?

UPDATE memo_codes_student SET `resolved_date_client` = NULL, `status` = 'Rejected' WHERE `guid_enrollment` = @guid_enrollment AND `guid` = @itemGUID

When I run the statement above, it updates the field to 0000-00-00. How can I get it to update the field to NULL?

回答1:

You are probably running in NO_ZERO_DATE mode.

See this post for more information: https://stackoverflow.com/a/3891947/1602014

来源：https://stackoverflow.com/questions/34859629/mysql-updating-nullable-date-column-to-null