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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
drop table if exists t1,t2,t3;
CREATE TABLE t1
(
FOLDERID VARCHAR(32) NOT NULL
, FOLDERNAME VARCHAR(255) NOT NULL
, CREATOR VARCHAR(255)
, CREATED TIMESTAMP NOT NULL
, DESCRIPTION VARCHAR(255)
, FOLDERTYPE INTEGER NOT NULL
, MODIFIED TIMESTAMP
, MODIFIER VARCHAR(255)
, FOLDERSIZE INTEGER NOT NULL
, PARENTID VARCHAR(32)
, REPID VARCHAR(32)
, ORIGINATOR INTEGER
, PRIMARY KEY ( FOLDERID )
) ENGINE=InnoDB;
CREATE INDEX FFOLDERID_IDX ON t1 (FOLDERID);
CREATE INDEX CMFLDRPARNT_IDX ON t1 (PARENTID);
INSERT INTO t1 VALUES("0c9aab05b15048c59bc35c8461507deb", "System", "System", "2003-06-05 16:30:00", "The system content repository folder.", "3", "2003-06-05 16:30:00", "System", "0", NULL, "9c9aab05b15048c59bc35c8461507deb", "1");
INSERT INTO t1 VALUES("2f6161e879db43c1a5b82c21ddc49089", "Default", "System", "2003-06-09 10:52:02", "The default content repository folder.", "3", "2003-06-05 16:30:00", "System", "0", NULL, "03eea05112b845949f3fd03278b5fe43", "1");
INSERT INTO t1 VALUES("c373e9f5ad0791724315444553544200", "AddDocumentTest", "admin", "2003-06-09 10:51:25", "Movie Reviews", "0", "2003-06-09 10:51:25", "admin", "0", "2f6161e879db43c1a5b82c21ddc49089", "03eea05112b845949f3fd03278b5fe43", NULL);
SELECT 'c373e9f5ad0791a0dab5444553544200' IN(SELECT t1.FOLDERID FROM t1 WHERE t1.PARENTID='2f6161e879db43c1a5b82c21ddc49089' AND t1.FOLDERNAME = 'Level1');
'c373e9f5ad0791a0dab5444553544200' IN(SELECT t1.FOLDERID FROM t1 WHERE t1.PARENTID='2f6161e879db43c1a5b82c21ddc49089' AND t1.FOLDERNAME = 'Level1')
0
drop table t1;
create table t1 (a int) engine=innodb;
create table t2 (a int) engine=innodb;
create table t3 (a int) engine=innodb;
insert into t1 values (1),(2),(3),(4);
insert into t2 values (10),(20),(30),(40);
insert into t3 values (1),(2),(10),(50);
select a from t3 where t3.a in (select a from t1 where a <= 3 union select * from t2 where a <= 30);
a
1
2
10
drop table t1,t2,t3;
CREATE TABLE t1 (
processor_id INTEGER NOT NULL,
PRIMARY KEY (processor_id)
) ENGINE=InnoDB;
CREATE TABLE t3 (
yod_id BIGINT AUTO_INCREMENT NOT NULL,
login_processor INTEGER ,
PRIMARY KEY (yod_id)
) ENGINE=InnoDB;
CREATE TABLE t2 (
processor_id INTEGER NOT NULL,
yod_id BIGINT NOT NULL,
PRIMARY KEY (processor_id, yod_id),
INDEX (processor_id),
INDEX (yod_id),
FOREIGN KEY (processor_id) REFERENCES t1(processor_id),
FOREIGN KEY (yod_id) REFERENCES t3(yod_id)
) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2),(3);
INSERT INTO t3 VALUES (1,1),(2,2),(3,3);
INSERT INTO t2 VALUES (1,1),(2,2),(3,3);
SELECT distinct p1.processor_id, (SELECT y.yod_id FROM t1 p2, t2 y WHERE p2.processor_id = p1.processor_id and p2.processor_id = y.processor_id) FROM t1 p1;
processor_id (SELECT y.yod_id FROM t1 p2, t2 y WHERE p2.processor_id = p1.processor_id and p2.processor_id = y.processor_id)
1 1
2 2
3 3
drop table t2,t1,t3;
CREATE TABLE t1 (
id int NOT NULL default '0',
b int default NULL,
c char(3) default NULL,
PRIMARY KEY (id),
KEY t2i1 (b)
) ENGINE=innodb;
INSERT INTO t1 VALUES (0,0,'GPL'),(1,0,'GPL'),(2,1,'GPL'),(3,2,'GPL');
CREATE TABLE t2 (
id int NOT NULL default '0',
b int default NULL,
c char(3) default NULL,
PRIMARY KEY (id),
KEY t2i (b)
) ENGINE=innodb;
INSERT INTO t2 VALUES (0,0,'GPL'),(1,0,'GPL'),(2,1,'GPL'),(3,2,'GPL');
select (select max(id) from t2 where b=1 group by b) as x,b from t1 where b=1;
x b
2 1
drop table t1,t2;
create table t1 (id int not null, value char(255), primary key(id)) engine=innodb;
create table t2 (id int not null, value char(255)) engine=innodb;
insert into t1 values (1,'a'),(2,'b');
insert into t2 values (1,'z'),(2,'x');
select t2.id,t2.value,(select t1.value from t1 where t1.id=t2.id) from t2;
id value (select t1.value from t1 where t1.id=t2.id)
1 z a
2 x b
select t2.id,t2.value,(select t1.value from t1 where t1.id=t2.id) from t2;
id value (select t1.value from t1 where t1.id=t2.id)
1 z a
2 x b
drop table t1,t2;
create table t1 (a int, b int) engine=innodb;
insert into t1 values (1,2), (1,3), (2,3), (2,4), (2,5), (3,4), (4,5), (4,100);
create table t2 (a int) engine=innodb;
insert into t2 values (1),(2),(3),(4);
select a, sum(b) as b from t1 group by a having b > (select max(a) from t2);
a b
1 5
2 12
4 105
drop table t1, t2;
CREATE TABLE `t1` ( `unit` varchar(50) NOT NULL default '', `ingredient` varchar(50) NOT NULL default '') ENGINE=InnoDB;
CREATE TABLE `t2` ( `ingredient` varchar(50) NOT NULL default '', `unit` varchar(50) NOT NULL default '', PRIMARY KEY (ingredient, unit)) ENGINE=InnoDB;
INSERT INTO `t1` VALUES ('xx','yy');
INSERT INTO `t2` VALUES ('yy','xx');
SELECT R.unit, R.ingredient FROM t1 R WHERE R.ingredient IN (SELECT N.ingredient FROM t2 N WHERE N.unit = R.unit);
unit ingredient
xx yy
drop table t1, t2;
CREATE TABLE t1 (
id INT NOT NULL auto_increment,
date1 DATE, coworkerid INT,
description VARCHAR(255),
sum_used DOUBLE,
sum_remaining DOUBLE,
comments VARCHAR(255),
PRIMARY KEY(id)
) engine=innodb;
insert into t1 values (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1999-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1998-01-01', 1,'test', 22, 33, 'comment'), (NULL, '1998-01-01', 1,'test', 22, 33, 'comment'), (NULL, '2004-01-01', 1,'test', 22, 33, 'comment'), (NULL, '2004-01-01', 1,'test', 22, 33, 'comment');
SELECT DISTINCT
(SELECT sum(sum_used) FROM t1 WHERE sum_used > 0 AND year(date1) <= '2004') as somallontvangsten,
(SELECT sum(sum_used) FROM t1 WHERE sum_used < 0 AND year(date1) <= '2004') as somalluitgaven
FROM t1;
somallontvangsten somalluitgaven
154 NULL
select * from t1;
id date1 coworkerid description sum_used sum_remaining comments
1 1999-01-01 1 test 22 33 comment
2 1999-01-01 1 test 22 33 comment
3 1999-01-01 1 test 22 33 comment
4 1998-01-01 1 test 22 33 comment
5 1998-01-01 1 test 22 33 comment
6 2004-01-01 1 test 22 33 comment
7 2004-01-01 1 test 22 33 comment
drop table t1;
CREATE TABLE t1 (
school_name varchar(45) NOT NULL,
country varchar(45) NOT NULL,
funds_requested float NOT NULL,
schooltype varchar(45) NOT NULL
) ENGINE=InnoDB;
insert into t1 values ("the school", "USA", 1200, "Human");
select count(country) as countrycount, sum(funds_requested) as smcnt,
country, (select sum(funds_requested) from t1) as total_funds
from t1
group by country;
countrycount smcnt country total_funds
1 1200 USA 1200
select count(country) as countrycount, sum(funds_requested) as smcnt,
country, (select sum(funds_requested) from t1) as total_funds
from t1
group by country;
countrycount smcnt country total_funds
1 1200 USA 1200
drop table t1;
CREATE TABLE `t1` (
`t3_id` int NOT NULL,
`t1_id` int NOT NULL,
PRIMARY KEY (`t1_id`)
);
CREATE TABLE `t2` (
`t2_id` int NOT NULL,
`t1_id` int NOT NULL,
`b` int NOT NULL,
PRIMARY KEY (`t2_id`),
UNIQUE KEY `idx_t2_t1_b` (`t1_id`,`b`)
) ENGINE=InnoDB;
CREATE TABLE `t3` (
`t3_id` int NOT NULL
);
INSERT INTO `t3` VALUES (3);
select
(SELECT rs.t2_id
FROM t2 rs
WHERE rs.t1_id=
(SELECT lt.t1_id
FROM t1 lt
WHERE lt.t3_id=a.t3_id)
ORDER BY b DESC LIMIT 1)
from t3 AS a;
(SELECT rs.t2_id
FROM t2 rs
WHERE rs.t1_id=
(SELECT lt.t1_id
FROM t1 lt
WHERE lt.t3_id=a.t3_id)
ORDER BY b DESC LIMIT 1)
NULL
DROP TABLE t1,t2,t3;
|