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DROP TABLE IF EXISTS t1;
show variables like "timezone";
Variable_name Value
timezone MET
select @a:=FROM_UNIXTIME(1);
@a:=FROM_UNIXTIME(1)
1970-01-01 01:00:01
select unix_timestamp(@a);
unix_timestamp(@a)
1
CREATE TABLE t1 (ts int);
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 01:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 02:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 03:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 02:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 01:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2002-10-27 02:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 02:59:59'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 03:00:00'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 03:59:59'));
INSERT INTO t1 (ts) VALUES (Unix_timestamp('2003-03-30 04:00:01'));
SELECT ts,from_unixtime(ts) FROM t1;
ts from_unixtime(ts)
1035673200 2002-10-27 01:00:00
1035680400 2002-10-27 02:00:00
1035684000 2002-10-27 03:00:00
1035680400 2002-10-27 02:00:00
1035673200 2002-10-27 01:00:00
1035680400 2002-10-27 02:00:00
1048986000 2003-03-30 03:00:00
1048986000 2003-03-30 03:00:00
1048989599 2003-03-30 03:59:59
1048989601 2003-03-30 04:00:01
DROP TABLE t1;
select unix_timestamp('1970-01-01 01:00:00'),
unix_timestamp('1970-01-01 01:00:01'),
unix_timestamp('2038-01-01 00:59:59'),
unix_timestamp('2038-01-01 01:00:00');
unix_timestamp('1970-01-01 01:00:00') unix_timestamp('1970-01-01 01:00:01') unix_timestamp('2038-01-01 00:59:59') unix_timestamp('2038-01-01 01:00:00')
0 1 2145916799 0
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