from_unixtime

description

syntax

DATETIME FROM UNIXTIME (BIGINT unix timestamp [, VARCHAR string format]

Convert the UNIX timestamp to the corresponding time format of bits, and the format returned is specified by string_format

Input is an big integer and return is a string type

Support date_format‘s format, and default is %Y-%m-%d %H:%i:%s

Other string_format is illegal and will returns NULL.

The current supported range for unix_timestamp is [0, 32536771199]. unix_timestamp values that fall outside of this range will be returned as NULL

example

  1. mysql> select from_unixtime(1196440219);
  2. +---------------------------+
  3. | from_unixtime(1196440219) |
  4. +---------------------------+
  5. | 2007-12-01 00:30:19       |
  6. +---------------------------+
  8. mysql> select from_unixtime(1196440219, '%Y-%m-%d');
  9. +-----------------------------------------+
  10. | from_unixtime(1196440219, '%Y-%m-%d')   |
  11. +-----------------------------------------+
  12. | 2007-12-01                              |
  13. +-----------------------------------------+
  15. mysql> select from_unixtime(1196440219, '%Y-%m-%d %H:%i:%s');
  16. +--------------------------------------------------+
  17. |From unixtime (1196440219,'%Y-%m-%d %H:%i:%s')    |
  18. +--------------------------------------------------+
  19. | 2007-12-01 00:30:19                              |
  20. +--------------------------------------------------+

For timestamps that exceed the range, you can use the “from_second” function. DATETIME FROM_SECOND(BIGINT unix_timestamp)

  1. mysql> select from_second(21474836470);
  2. +--------------------------+
  3. | from_second(21474836470) |
  4. +--------------------------+
  5. | 2650-07-06 16:21:10      |
  6. +--------------------------+

keywords

  1. FROM_UNIXTIME,FROM,UNIXTIME