exemple requete mysql avec MONTH
SELECT count(id),month(mydate) FROM mydb.mytable
WHERE id= 3
Group by month(mydate)
Equivalent Oracle :
SELECT count(id) , to_char(mydate, 'M') FROM mydb.mytable WHERE id=3 GROUP BY to_char(mydate, 'M')
Year
| Parametre | Explication |
| YEAR | Year, spelled out in full words |
| YYYY | 4-digit year |
| YYY | Last 3 digits of year |
| YY | Last 2 digits of year |
| Y | Last digit of year |
| IYY | Last 3 digits of ISO year |
| IY | Last 2 digits of ISO year |
| I | Last digit of ISO year |
| IYYY | 4-digit year, which is based on the ISO standard |
| RRRR | This format accepts a 2-digit year, and returns a 4-digit year. If the provided value is between 0 and 49, it will return a year greater than or equal to 2000. If the provided value is between 50 and 99, it will return a year less than 2000 |
Month
| Parametre | Explication |
| Q | Quarter of year, from 1 to 4. JAN to MAR = 1 |
| MM | Month, from 01 to 12. JAN = 01 |
| MON | Abbreviated name of month. |
| MONTH | Name of month, padded with blanks to length of 9 characters. |
| RM | Roman numeral month, from I to XII. JAN = I. |
Week
| Parameter | Explication |
| WW | Week of year, from 1 to 53. Week 1 starts on the first day of the year, and continues to the seventh day of the year. |
| W | Week of month, from 1 to 5. Week 1 starts on the first day of the month and ends on the seventh. |
| IW | Week of year, from 1 to 52 or 1 to 53, based on the ISO standard. |
Day
| Parametre | Explication |
| D | Day of week, from 1 to 7. |
| DAY | Name of day. |
| DD | Day of month, from 1 to 31. |
| DDD | Day of year, from 1 to 366. |
| DY | Abbreviated name of day. |
| J | Julian day, which is the number of days since January 1, 4712 BC. |
Time
| Parametre | Explanation |
| HH | Hour of day, from 1 to 12. |
| HH12 | Hour of day, from 1 to 12. |
| HH24 | Hour of day, from 0 to 23. |
| MI | Minute, from 0 to 59 |
| SS | Second, from 0 to 59 |
| SSSSS | Seconds past midnight, from 0 to 86399. |
| FF | Fractional seconds. This uses a value from 1 to 9 after FF, to indicate the number of digits in the fractional seconds (e.g. FF7) |
Indicators
| Parametre | Explication |
| AM, A.M., PM, or P.M. | Meridian indicator |
| AD or A.D | AD indicator |
| BC or B.C. | BC indicator |
| TZD | Daylight savings information |
| TZH | Time zone hour. |
| TZM | Time zone minute. |
| TZR | Time zone region. |
