SQLite Date FunctionThe SQLite "DATE" function is used to retrieve the date and return it in 'YYYY-MM-DD' format. Syntax: Here, timestring is a date value which can be anyone of the following: Index | timestring | Description |
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1) | now | It is a literal used to return the current date. | 2) | YYYY-MM-DD | It specifies the date value formatted as 'YYYY-MM-DD' | 3) | YYYY-MM-DD HH:MM | It specifies the date value formatted as 'YYYY-MM-DD HH:MM' | 4) | YYYY-MM-DD HH:MM:SS | It specifies the date value formatted as 'YYYY-MM-DD HH:MM:SS' | 5) | YYYY-MM-DD HH:MM:SS.SSS | It specifies the date value formatted as 'YYYY-MM-DD HH:MM:SS.SSS' | 6) | HH:MM | It specifies the date value formatted as 'HH:MM' | 7) | HH:MM:SS | It specifies the date value formatted as 'HH:MM:SS' | 8) | HH:MM:SS.SSS | It specifies the date value formatted as 'HH:MM:SS.SSS' | 9) | YYYY-MM-DDTHH:MM | It specifies the date value formatted as 'YYYY-MM-DDTHH:MM' where t is a literal character separating the date and time portions. | 10) | YYYY-MM-DDTHH:MM:SS | It specifies the date value formatted as 'YYYY-MM-DDTHH:MM:SS' where t is a literal character separating the date and time portions | 11) | YYYY-MM-DDTHH:MM:SS.SSS | It specifies the date value formatted as 'YYYY-MM-DDTHH:MM:SS.SSS' where t is a literal character separating the date and time portions | 12) | DDDDDDDDDD | It specifies the Julian date number |
modifier1, modifier2, ... modifier_n: modifiers are optional. These are used with timestring to add or subtract time, date or years. Index | Modifier | Description |
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1) | [+-]NNN years | It is used to specify number of years added/subtracted to the date | 2) | [+-]NNN months | It is used to specify number of months added/subtracted to the date | 3) | [+-]NNN days | It is used to specify number of days added/subtracted to the date | 4) | [+-]NNN hours | It is used to specify number of hours added/subtracted to the date | 5) | [+-]NNN minutes | It is used to specify number of minutes added/subtracted to the date | 6) | [+-]NNN seconds | It is used to specify number of seconds added/subtracted to the date | 7) | [+-]NNN.NNNN seconds | It is used to specify number of seconds (and fractional seconds) added/subtracted to the date | 8) | start of year | It is used to shift the date back to the start of the year | 9) | start of month | It is used to shift the date back to the start of the month | 10) | start of day | It is used to shift the date back to the start of the day | 11) | weekday N | It is used to move the date forward to the next date where weekday number is N (0=Sunday, 1=Monday, 2=Tuesday, 3=Wednesday, 4=Thursday, 5=Friday, 6=Saturday) | 12) | unixepoch | It is used with the DDDDDDDDDD timestring to interpret the date as UNIX Time (ie: number of seconds since 1970-01-01) | 13) | localtime | It is used to adjust date to localtime, assuming the timestring was expressed in UTC | 14) | utc | It is used to adjust date to utc, assuming the timestring was expressed in localtime |
Example1: Retrieve current date: Output: Example2: Retrieve First Day of the Month: There are 4 ways to find out first day of the month: Output: Example3: Retrieve last day of the month: Date function can be used to retrieve the last day of the month. There are 4 ways to find out last day of the month: Output: Example4: Add/ subtract years to Current date: Add and subtract 5 years to current date: Output: Example5: Add/ subtract days to Current date: By the same above way you can add and subtract days to the date: Output:
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