1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
drop table if exists t1,t2;
create table t1 (a char(16), b date, c datetime);
insert into t1 SET a='test 2000-01-01', b='2000-01-01', c='2000-01-01';
select * from t1 where c = '2000-01-01';
a b c
test 2000-01-01 2000-01-01 2000-01-01 00:00:00
select * from t1 where b = '2000-01-01';
a b c
test 2000-01-01 2000-01-01 2000-01-01 00:00:00
drop table t1;
CREATE TABLE t1 (name char(6),cdate date);
INSERT INTO t1 VALUES ('name1','1998-01-01');
INSERT INTO t1 VALUES ('name2','1998-01-01');
INSERT INTO t1 VALUES ('name1','1998-01-02');
INSERT INTO t1 VALUES ('name2','1998-01-02');
CREATE TABLE t2 (cdate date, note char(6));
INSERT INTO t2 VALUES ('1998-01-01','note01');
INSERT INTO t2 VALUES ('1998-01-02','note02');
select name,t1.cdate,note from t1,t2 where t1.cdate=t2.cdate and t1.cdate='1998-01-01';
name cdate note
name1 1998-01-01 note01
name2 1998-01-01 note01
drop table t1,t2;
CREATE TABLE t1 ( datum DATE );
INSERT INTO t1 VALUES ( "2000-1-1" );
INSERT INTO t1 VALUES ( "2000-1-2" );
INSERT INTO t1 VALUES ( "2000-1-3" );
INSERT INTO t1 VALUES ( "2000-1-4" );
INSERT INTO t1 VALUES ( "2000-1-5" );
SELECT * FROM t1 WHERE datum BETWEEN "2000-1-2" AND "2000-1-4";
datum
2000-01-02
2000-01-03
2000-01-04
SELECT * FROM t1 WHERE datum BETWEEN "2000-1-2" AND datum - INTERVAL 100 DAY;
datum
DROP TABLE t1;
CREATE TABLE t1 (
user_id char(10),
summa int(11),
rdate date
);
INSERT INTO t1 VALUES ('aaa',100,'1998-01-01');
INSERT INTO t1 VALUES ('aaa',200,'1998-01-03');
INSERT INTO t1 VALUES ('bbb',50,'1998-01-02');
INSERT INTO t1 VALUES ('bbb',200,'1998-01-04');
select max(rdate) as s from t1 where rdate < '1998-01-03' having s> "1998-01-01";
s
1998-01-02
select max(rdate) as s from t1 having s="1998-01-04";
s
1998-01-04
select max(rdate+0) as s from t1 having s="19980104";
s
19980104
drop table t1;
create table t1 (date date);
insert into t1 values ("2000-08-10"),("2000-08-11");
select date_add(date,INTERVAL 1 DAY),date_add(date,INTERVAL 1 SECOND) from t1;
date_add(date,INTERVAL 1 DAY) date_add(date,INTERVAL 1 SECOND)
2000-08-11 2000-08-10 00:00:01
2000-08-12 2000-08-11 00:00:01
drop table t1;
CREATE TABLE t1(AFIELD INT);
INSERT INTO t1 VALUES(1);
CREATE TABLE t2(GMT VARCHAR(32));
INSERT INTO t2 VALUES('GMT-0800');
SELECT DATE_FORMAT("2002-03-06 10:11:12", CONCAT('%a, %d %M %Y %H:%i:%s ' , t2.GMT)) FROM t1, t2 GROUP BY t1.AFIELD;
DATE_FORMAT("2002-03-06 10:11:12", CONCAT('%a, %d %M %Y %H:%i:%s ' , t2.GMT))
Wed, 06 March 2002 10:11:12 GMT-0800
INSERT INTO t1 VALUES(1);
SELECT DATE_FORMAT("2002-03-06 10:11:12", CONCAT('%a, %d %M %Y %H:%i:%s ' , t2.GMT)), DATE_FORMAT("2002-03-06 10:11:12", CONCAT('%a, %d %M %Y %H:%i:%s ' , t2.GMT)) FROM t1,t2 GROUP BY t1.AFIELD;
DATE_FORMAT("2002-03-06 10:11:12", CONCAT('%a, %d %M %Y %H:%i:%s ' , t2.GMT)) DATE_FORMAT("2002-03-06 10:11:12", CONCAT('%a, %d %M %Y %H:%i:%s ' , t2.GMT))
Wed, 06 March 2002 10:11:12 GMT-0800 Wed, 06 March 2002 10:11:12 GMT-0800
drop table t1,t2;
|
