MYSQL Round the datetime to 15 minute

Question

I want to update the datetime round to 15 minutes in a MYSQL database table.

For Example:

If the dateTime is 2013-10-08 10:36:00, I want to conv

Answer 1

Use the same method as in the question you linked, but use UNIX_TIMESTAMP functions instead. This will round either down or up to the nearest 15 minutes, remove the + 450 part if you want to round only down.

mysql> select FROM_UNIXTIME(((UNIX_TIMESTAMP('2013-08-07 12:05') + 450) DIV 900) * 900) AS roundtime;
+---------------------+
| roundtime           |
+---------------------+
| 2013-08-07 12:00:00 |
+---------------------+