问题
Could you help me convert UNIX epoch time into format yyyy-mm-dd hh:mm:ss (24h) in SQLite? (GMT+7 would be appreciated).
Example: from 1319017136629 to Wednesday, October 19, 2011 4:38:56 PM GMT+7.
p/s: Just looked around and found a solution:
SELECT datetime(1319017136629, 'unixepoch', 'localtime');
But i am still looking for a way to batch convert UNIX epoch time in SQLite.
回答1:
To change the values in the database, use the UPDATE command:
UPDATE MyTable SET MyColumn = datetime(MyColumn, 'unixepoch', 'localtime')
回答2:
1319017136629 is a value in milliseconds, which is not UNIX epoch time;
therefore it has to be divided by 1000 and rounded to integer seconds; only then DATE() and DATETIME() will convert.
SELECT DATETIME(ROUND(dateColumn / 1000), 'unixepoch') AS isodate
FROM tableName
converting database values to localtime is unfortunate; conversion on output is less problematic.
来源：https://stackoverflow.com/questions/14629347/how-to-convert-unix-epoch-time-in-sqlite