mirror of
https://github.com/MariaDB/server.git
synced 2025-10-30 04:26:45 +03:00
201 lines
8.0 KiB
Plaintext
201 lines
8.0 KiB
Plaintext
drop table if exists t1, test;
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select extract(DAY_MICROSECOND FROM "1999-01-02 10:11:12.000123");
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extract(DAY_MICROSECOND FROM "1999-01-02 10:11:12.000123")
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2101112000123
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select extract(HOUR_MICROSECOND FROM "1999-01-02 10:11:12.000123");
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extract(HOUR_MICROSECOND FROM "1999-01-02 10:11:12.000123")
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101112000123
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select extract(MINUTE_MICROSECOND FROM "1999-01-02 10:11:12.000123");
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extract(MINUTE_MICROSECOND FROM "1999-01-02 10:11:12.000123")
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1112000123
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select extract(SECOND_MICROSECOND FROM "1999-01-02 10:11:12.000123");
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extract(SECOND_MICROSECOND FROM "1999-01-02 10:11:12.000123")
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12000123
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select extract(MICROSECOND FROM "1999-01-02 10:11:12.000123");
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extract(MICROSECOND FROM "1999-01-02 10:11:12.000123")
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123
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select date_format("1997-12-31 23:59:59.000002", "%f");
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date_format("1997-12-31 23:59:59.000002", "%f")
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000002
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select date_add("1997-12-31 23:59:59.000002",INTERVAL "10000 99:99:99.999999" DAY_MICROSECOND);
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date_add("1997-12-31 23:59:59.000002",INTERVAL "10000 99:99:99.999999" DAY_MICROSECOND)
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2025-05-23 04:40:39.000001
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select date_add("1997-12-31 23:59:59.000002",INTERVAL "10000:99:99.999999" HOUR_MICROSECOND);
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date_add("1997-12-31 23:59:59.000002",INTERVAL "10000:99:99.999999" HOUR_MICROSECOND)
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1999-02-21 17:40:39.000001
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select date_add("1997-12-31 23:59:59.000002",INTERVAL "10000:99.999999" MINUTE_MICROSECOND);
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date_add("1997-12-31 23:59:59.000002",INTERVAL "10000:99.999999" MINUTE_MICROSECOND)
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1998-01-07 22:41:39.000001
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select date_add("1997-12-31 23:59:59.000002",INTERVAL "10000.999999" SECOND_MICROSECOND);
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date_add("1997-12-31 23:59:59.000002",INTERVAL "10000.999999" SECOND_MICROSECOND)
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1998-01-01 02:46:40.000001
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select date_add("1997-12-31 23:59:59.000002",INTERVAL "999999" MICROSECOND);
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date_add("1997-12-31 23:59:59.000002",INTERVAL "999999" MICROSECOND)
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1998-01-01 00:00:00.000001
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select date_sub("1998-01-01 00:00:00.000001",INTERVAL "1 1:1:1.000002" DAY_MICROSECOND);
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date_sub("1998-01-01 00:00:00.000001",INTERVAL "1 1:1:1.000002" DAY_MICROSECOND)
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1997-12-30 22:58:58.999999
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select date_sub("1998-01-01 00:00:00.000001",INTERVAL "1:1:1.000002" HOUR_MICROSECOND);
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date_sub("1998-01-01 00:00:00.000001",INTERVAL "1:1:1.000002" HOUR_MICROSECOND)
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1997-12-31 22:58:58.999999
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select date_sub("1998-01-01 00:00:00.000001",INTERVAL "1:1.000002" MINUTE_MICROSECOND);
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date_sub("1998-01-01 00:00:00.000001",INTERVAL "1:1.000002" MINUTE_MICROSECOND)
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1997-12-31 23:58:58.999999
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select date_sub("1998-01-01 00:00:00.000001",INTERVAL "1.000002" SECOND_MICROSECOND);
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date_sub("1998-01-01 00:00:00.000001",INTERVAL "1.000002" SECOND_MICROSECOND)
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1997-12-31 23:59:58.999999
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select date_sub("1998-01-01 00:00:00.000001",INTERVAL "000002" MICROSECOND);
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date_sub("1998-01-01 00:00:00.000001",INTERVAL "000002" MICROSECOND)
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1997-12-31 23:59:59.999999
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select adddate("1997-12-31 23:59:59.000001", 10);
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adddate("1997-12-31 23:59:59.000001", 10)
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1998-01-10 23:59:59.000001
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select subdate("1997-12-31 23:59:59.000001", 10);
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subdate("1997-12-31 23:59:59.000001", 10)
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1997-12-21 23:59:59.000001
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select datediff("1997-12-31 23:59:59.000001","1997-12-30");
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datediff("1997-12-31 23:59:59.000001","1997-12-30")
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1
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select datediff("1997-11-31 23:59:59.000001","1997-12-31");
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datediff("1997-11-31 23:59:59.000001","1997-12-31")
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-30
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select datediff("1997-11-31 23:59:59.000001",null);
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datediff("1997-11-31 23:59:59.000001",null)
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NULL
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select weekofyear("1997-11-31 23:59:59.000001");
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weekofyear("1997-11-31 23:59:59.000001")
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49
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select makedate(1997,1);
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makedate(1997,1)
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1997-01-01
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select makedate(1997,0);
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makedate(1997,0)
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NULL
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select addtime("1997-12-31 23:59:59.999999", "1 1:1:1.000002");
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addtime("1997-12-31 23:59:59.999999", "1 1:1:1.000002")
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1998-01-02 01:01:01.000001
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select subtime("1997-12-31 23:59:59.000001", "1 1:1:1.000002");
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subtime("1997-12-31 23:59:59.000001", "1 1:1:1.000002")
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1997-12-30 22:58:57.999999
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select addtime("1997-12-31 23:59:59.999999", "1998-01-01 01:01:01.999999");
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addtime("1997-12-31 23:59:59.999999", "1998-01-01 01:01:01.999999")
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NULL
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select subtime("1997-12-31 23:59:59.999999", "1998-01-01 01:01:01.999999");
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subtime("1997-12-31 23:59:59.999999", "1998-01-01 01:01:01.999999")
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NULL
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select subtime("01:00:00.999999", "02:00:00.999998");
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subtime("01:00:00.999999", "02:00:00.999998")
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-00:59:59.999999
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select subtime("02:01:01.999999", "01:01:01.999999");
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subtime("02:01:01.999999", "01:01:01.999999")
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01:00:00.000000
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select timediff("1997-01-01 23:59:59.000001","1995-12-31 23:59:59.000002");
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timediff("1997-01-01 23:59:59.000001","1995-12-31 23:59:59.000002")
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8807:59:59.999999
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select timediff("1997-12-31 23:59:59.000001","1997-12-30 01:01:01.000002");
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timediff("1997-12-31 23:59:59.000001","1997-12-30 01:01:01.000002")
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46:58:57.999999
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select timediff("1997-12-30 23:59:59.000001","1997-12-31 23:59:59.000002");
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timediff("1997-12-30 23:59:59.000001","1997-12-31 23:59:59.000002")
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-23:59:59.999999
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select timediff("1997-12-31 23:59:59.000001","23:59:59.000001");
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timediff("1997-12-31 23:59:59.000001","23:59:59.000001")
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NULL
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select timediff("2000:01:01 00:00:00", "2000:01:01 00:00:00.000001");
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timediff("2000:01:01 00:00:00", "2000:01:01 00:00:00.000001")
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-00:00:00.000001
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select maketime(10,11,12);
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maketime(10,11,12)
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10:11:12
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select maketime(25,11,12);
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maketime(25,11,12)
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25:11:12
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select maketime(-25,11,12);
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maketime(-25,11,12)
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-25:11:12
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select timestamp("2001-12-01", "01:01:01.999999");
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timestamp("2001-12-01", "01:01:01.999999")
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2001-12-01 01:01:01.999999
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select timestamp("2001-13-01", "01:01:01.000001");
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timestamp("2001-13-01", "01:01:01.000001")
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NULL
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select timestamp("2001-12-01", "25:01:01");
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timestamp("2001-12-01", "25:01:01")
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2001-12-02 01:01:01
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select timestamp("2001-12-01 01:01:01.000100");
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timestamp("2001-12-01 01:01:01.000100")
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2001-12-01 01:01:01.000100
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select timestamp("2001-12-01");
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timestamp("2001-12-01")
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2001-12-01 00:00:00
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select day("1997-12-31 23:59:59.000001");
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day("1997-12-31 23:59:59.000001")
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31
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select date("1997-12-31 23:59:59.000001");
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date("1997-12-31 23:59:59.000001")
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1997-12-31
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select date("1997-13-31 23:59:59.000001");
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date("1997-13-31 23:59:59.000001")
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NULL
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select time("1997-12-31 23:59:59.000001");
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time("1997-12-31 23:59:59.000001")
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23:59:59.000001
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select time("1997-12-31 25:59:59.000001");
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time("1997-12-31 25:59:59.000001")
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NULL
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select microsecond("1997-12-31 23:59:59.000001");
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microsecond("1997-12-31 23:59:59.000001")
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1
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create table t1
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select makedate(1997,1) as f1,
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addtime(cast("1997-12-31 23:59:59.000001" as datetime), "1 1:1:1.000002") as f2,
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addtime(cast("23:59:59.999999" as time) , "1 1:1:1.000002") as f3,
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timediff("1997-12-31 23:59:59.000001","1997-12-30 01:01:01.000002") as f4,
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timediff("1997-12-30 23:59:59.000001","1997-12-31 23:59:59.000002") as f5,
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maketime(10,11,12) as f6,
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timestamp(cast("2001-12-01" as date), "01:01:01") as f7,
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date("1997-12-31 23:59:59.000001") as f8,
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time("1997-12-31 23:59:59.000001") as f9;
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describe t1;
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Field Type Null Key Default Extra
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f1 date 0000-00-00
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f2 datetime 0000-00-00 00:00:00
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f3 time 00:00:00
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f4 time 00:00:00
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f5 time 00:00:00
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f6 time 00:00:00
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f7 datetime 0000-00-00 00:00:00
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f8 date 0000-00-00
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f9 time 00:00:00
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select * from t1;
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f1 f2 f3 f4 f5 f6 f7 f8 f9
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1997-01-01 1998-01-02 01:01:00 49:01:01 46:58:57 -23:59:59 10:11:12 2001-12-01 01:01:01 1997-12-31 23:59:59
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create table test(t1 datetime, t2 time, t3 time, t4 datetime);
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insert into test values
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('2001-01-01 01:01:01', '01:01:01', null, '2001-02-01 01:01:01'),
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('2001-01-01 01:01:01', '-01:01:01', '-23:59:59', "1997-12-31 23:59:59.000001"),
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('1997-12-31 23:59:59.000001', '-23:59:59', '-01:01:01', '2001-01-01 01:01:01'),
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('2001-01-01 01:01:01', '01:01:01', '-1 01:01:01', null),
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('2001-01-01 01:01:01', null, '-1 01:01:01', null),
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(null, null, null, null),
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('2001-01-01 01:01:01', '01:01:01', '1 01:01:01', '2001-01-01 01:01:01');
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SELECT ADDTIME(t1,t2) As ttt, ADDTIME(t2, t3) As qqq from test;
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ttt qqq
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2001-01-01 02:02:02 NULL
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2001-01-01 00:00:00 -25:01:00
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1997-12-31 00:00:00 -25:01:00
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2001-01-01 02:02:02 -24:00:00
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NULL NULL
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NULL NULL
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2001-01-01 02:02:02 26:02:02
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SELECT TIMEDIFF(t1,t4) As ttt, TIMEDIFF(t2, t3) As qqq from test;
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ttt qqq
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-744:00:00 NULL
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26305:01:02 22:58:58
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-26305:01:02 -22:58:58
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NULL 26:02:02
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NULL NULL
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NULL NULL
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00:00:00 -24:00:00
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drop table t1, test;
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