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Oracle date functions
Oracle PL SQL date / time functions
| Function | Description |
| ADD_MONTHS | The Oracle/PLSQL function ADD_MONTHS returns a date plus n months. |
| CURRENT_DATE | Oracle/PLSQL function CURRENT_DATE returns the current date in the time zone of the current SQL session as set with the ALTER SESSION command. |
| CURRENT_TIMESTAMP | Oracle/PLSQL function CURRENT_TIMESTAMP returns the current date and time in the time zone of the current SQL session as set with the ALTER SESSION command. It returns the date/time with the time zone value. |
| DBTIMEZONE | The Oracle/PLSQL function DBTIMEZONE returns the time zone of the database as an offset of the time zone (in the following format: ‘[+|-]TZH:TZM’) or the time zone name. |
| EXTRACT | The Oracle/PLSQL function EXTRACT extracts a value from a date or interval value. |
| LAST_DAY | Oracle/PLSQL function LAST_DAY returns the last day of the month based on the date value. |
| LOCALTIMESTAMP | Oracle/PLSQL function LOCALTIMESTAMP returns the current date and time in the time zone from the current SQL session, as set by ALTER SESSION command. This will return TIMESTAMP. |
| MONTHS_BETWEEN | Oracle/PLSQL function MONTHS_BETWEEN returns the number of months between date1 and date2. |
| NEW_TIME | Oracle/PLSQL function NEW_TIME returns the date and time zone2 for the date and time zone1 set by date. |
| NEXT_DAY | Oracle/PLSQL function NEXT_DAY returns the first day of the week that is larger than date. |
| ROUND (FOR DATES) | The Oracle/PLSQL function ROUND returns a date rounded to a specific unit. |
| SESSIONTIMEZONE | Oracle/PLSQL function SESSIONTIMEZONE returns the time zone of the current session as an offset of the time zone (in the following format: ‘[+|-]TZH:TZM’) or the name of the time zone region. |
| SYSDATE | Oracle/PLSQL function SYSDATE returns the current system date and time on your local database. |
| SYSTIMESTAMP | Oracle/PLSQL function SYSTIMESTAMP returns the current system date and time (including fraction of a second and time zone) to your local database. |
| TO_DATE | The Oracle/PLSQL function TO_DATE converts a string into a date. |
| TRUNC (FOR DATES) | The Oracle/PLSQL function TRUNC returns a date truncated to a specific unit. |
| TZ_OFFSET | The Oracle/PLSQL function TZ_OFFSET returns the time zone offset from a value. |
Oracle – SQL – Date Functions
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