How to resolve a failed conversion of datetime to date in MySQL?

1 year ago
Benjamin Taylor
2 minutes

In MySQL, the DATE() function can be used to convert DATETIME data type into DATE type. If the conversion from DATETIME to DATE fails, it may be due to the DATETIME field value not meeting the date format requirements or other issues present.

Here are some common solutions:

  1. Ensure that the value of the DATETIME field conforms to the date and time format, which is YYYY-MM-DD HH:MM:SS. If the data format is incorrect, you can use the STR_TO_DATE() function to convert it to the correct format, and then use the DATE() function to convert it to the DATE type.
  2. You can use the CAST() function for type conversion. It can be used to convert a DATETIME field to a DATE type, for example: SELECT CAST(datetime_column AS DATE) FROM table_name;
  3. Convert using DATE_FORMAT() function. You can use the DATE_FORMAT() function to convert a DATETIME field to a DATE type, for example: SELECT DATE_FORMAT(datetime_column, ‘%Y-%m-%d’) FROM table_name;
  4. Check if the data is empty or NULL. Converting a DATETIME field value to DATE type may fail if it is empty or NULL.

By following the above methods, you can attempt to resolve the issue of failing to convert DATETIME to DATE in MySQL. If the problem persists, please verify the integrity and correctness of the data.

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