QUARTER
From SQLZOO
| QUARTER(d) | ||
|---|---|---|
| Engine | OK | Alternative |
| ingres | Yes | EXTRACT(QUARTER from d) |
| mysql | Yes | EXTRACT(QUARTER from d) |
| oracle | No | TO_CHAR(d,'Q') |
| postgres | No | EXTRACT(QUARTER from d) |
| sqlserver | No | DATEPART(QUARTER,d) |
QUARTER
QUARTER allows you to retrieve the 3 month period from a date.
| First Quarter | January 1 | March 31 |
| Second Quarter | April 1 | June 30 |
| Third Quarter | July 1 | September 30 |
| Fourth Quarter | October 1 | December 31</td>