Separating Date and Time from MySQL DATETIME
When storing timestamps in a DATETIME column, the values often combine date and time components, such as "2012-09-09 06:57:12." To extract these components separately, MySQL provides the DATE_FORMAT() function.
Query to Split Date and Time:
SELECT DATE_FORMAT(colName, '%Y-%m-%d') AS DATEONLY, DATE_FORMAT(colName,'%H:%i:%s') AS TIMEONLY;
Explanation:
- DATEONLY: Uses the '%Y-%m-%d' format string to extract the date portion as "2012-09-09."
- TIMEONLY: Uses the '%H:%i:%s' format string to extract the time portion as "06:57:12."
The query returns separate columns for the date and time components, allowing you to access them independently.
Example:
Consider the following table with a DATETIME column:
id | timestamp |
---|---|
1 | 2012-09-09 06:57:12 |
2 | 2023-04-15 12:35:09 |
Executing the query:
SELECT DATE_FORMAT(timestamp, '%Y-%m-%d') AS DATEONLY, DATE_FORMAT(timestamp,'%H:%i:%s') AS TIMEONLY FROM table_name;
Output:
id | DATEONLY | TIMEONLY |
---|---|---|
1 | 2012-09-09 | 06:57:12 |
2 | 2023-04-15 | 12:35:09 |
The above is the detailed content of How to Separate Date and Time from MySQL DATETIME Columns?. For more information, please follow other related articles on the PHP Chinese website!

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