2005-01-16 22:18:19 +01:00
|
|
|
drop table if exists t1,t2;
|
2003-11-20 21:27:11 +01:00
|
|
|
create table t1
|
|
|
|
|
(
|
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|
key1 int not null,
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|
key2 int not null,
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|
|
INDEX i1(key1),
|
2004-05-14 16:00:57 +02:00
|
|
|
INDEX i2(key2)
|
2003-12-16 18:09:22 +01:00
|
|
|
) engine=innodb;
|
2003-11-20 21:27:11 +01:00
|
|
|
explain select * from t1 where key1 < 5 or key2 > 197;
|
|
|
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
2004-05-29 00:04:01 +02:00
|
|
|
1 SIMPLE t1 index_merge i1,i2 i1,i2 4,4 NULL 8 Using sort_union(i1,i2); Using where
|
2003-11-20 21:27:11 +01:00
|
|
|
select * from t1 where key1 < 5 or key2 > 197;
|
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|
|
key1 key2
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0 200
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1 199
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2 198
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3 197
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|
4 196
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|
|
explain select * from t1 where key1 < 3 or key2 > 195;
|
|
|
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
2004-05-29 00:04:01 +02:00
|
|
|
1 SIMPLE t1 index_merge i1,i2 i1,i2 4,4 NULL 8 Using sort_union(i1,i2); Using where
|
2003-11-20 21:27:11 +01:00
|
|
|
select * from t1 where key1 < 3 or key2 > 195;
|
|
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|
|
key1 key2
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|
0 200
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|
1 199
|
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2 198
|
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|
3 197
|
2003-11-24 18:54:57 +01:00
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|
4 196
|
2003-11-20 21:27:11 +01:00
|
|
|
alter table t1 add str1 char (255) not null,
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|
add zeroval int not null default 0,
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|
add str2 char (255) not null,
|
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|
add str3 char (255) not null;
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|
update t1 set str1='aaa', str2='bbb', str3=concat(key2, '-', key1 div 2, '_' ,if(key1 mod 2 = 0, 'a', 'A'));
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|
alter table t1 add primary key (str1, zeroval, str2, str3);
|
|
|
|
|
explain select * from t1 where key1 < 5 or key2 > 197;
|
|
|
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
2004-05-29 00:04:01 +02:00
|
|
|
1 SIMPLE t1 index_merge i1,i2 i1,i2 4,4 NULL 8 Using sort_union(i1,i2); Using where
|
2003-11-20 21:27:11 +01:00
|
|
|
select * from t1 where key1 < 5 or key2 > 197;
|
|
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|
|
key1 key2 str1 zeroval str2 str3
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|
4 196 aaa 0 bbb 196-2_a
|
2003-11-24 18:54:57 +01:00
|
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|
3 197 aaa 0 bbb 197-1_A
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|
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|
2 198 aaa 0 bbb 198-1_a
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|
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1 199 aaa 0 bbb 199-0_A
|
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|
|
|
0 200 aaa 0 bbb 200-0_a
|
2003-11-20 21:27:11 +01:00
|
|
|
explain select * from t1 where key1 < 3 or key2 > 195;
|
|
|
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
2004-05-29 00:04:01 +02:00
|
|
|
1 SIMPLE t1 index_merge i1,i2 i1,i2 4,4 NULL 8 Using sort_union(i1,i2); Using where
|
2003-11-20 21:27:11 +01:00
|
|
|
select * from t1 where key1 < 3 or key2 > 195;
|
|
|
|
|
key1 key2 str1 zeroval str2 str3
|
|
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|
|
4 196 aaa 0 bbb 196-2_a
|
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|
3 197 aaa 0 bbb 197-1_A
|
2003-11-24 18:54:57 +01:00
|
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|
2 198 aaa 0 bbb 198-1_a
|
|
|
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|
1 199 aaa 0 bbb 199-0_A
|
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|
0 200 aaa 0 bbb 200-0_a
|
2003-11-20 21:27:11 +01:00
|
|
|
drop table t1;
|
2004-12-23 00:26:22 +01:00
|
|
|
create table t1 (
|
|
|
|
|
pk integer not null auto_increment primary key,
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|
|
key1 integer,
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|
|
|
key2 integer not null,
|
|
|
|
|
filler char (200),
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|
|
|
index (key1),
|
|
|
|
|
index (key2)
|
|
|
|
|
) engine=innodb;
|
|
|
|
|
show warnings;
|
|
|
|
|
Level Code Message
|
|
|
|
|
explain select pk from t1 where key1 = 1 and key2 = 1;
|
|
|
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
|
|
|
1 SIMPLE t1 index_merge key1,key2 key1,key2 5,4 NULL 1 Using intersect(key1,key2); Using where; Using index
|
|
|
|
|
select pk from t1 where key2 = 1 and key1 = 1;
|
|
|
|
|
pk
|
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|
26
|
2005-02-08 23:50:45 +01:00
|
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|
27
|
2004-12-23 00:26:22 +01:00
|
|
|
select pk from t1 ignore index(key1,key2) where key2 = 1 and key1 = 1;
|
|
|
|
|
pk
|
|
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|
26
|
2005-02-08 23:50:45 +01:00
|
|
|
27
|
2004-12-23 00:26:22 +01:00
|
|
|
drop table t1;
|
|
|
|
|
create table t1 (
|
|
|
|
|
pk int primary key auto_increment,
|
|
|
|
|
key1a int,
|
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|
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|
key2a int,
|
|
|
|
|
key1b int,
|
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|
|
|
key2b int,
|
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|
|
dummy1 int,
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|
dummy2 int,
|
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|
|
|
dummy3 int,
|
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|
dummy4 int,
|
|
|
|
|
key3a int,
|
|
|
|
|
key3b int,
|
|
|
|
|
filler1 char (200),
|
|
|
|
|
index i1(key1a, key1b),
|
|
|
|
|
index i2(key2a, key2b),
|
|
|
|
|
index i3(key3a, key3b)
|
|
|
|
|
) engine=innodb;
|
|
|
|
|
create table t2 (a int);
|
|
|
|
|
insert into t2 values (0),(1),(2),(3),(4),(NULL);
|
|
|
|
|
insert into t1 (key1a, key1b, key2a, key2b, key3a, key3b)
|
|
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|
|
select A.a, B.a, C.a, D.a, C.a, D.a from t2 A,t2 B,t2 C, t2 D;
|
|
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|
|
insert into t1 (key1a, key1b, key2a, key2b, key3a, key3b)
|
|
|
|
|
select key1a, key1b, key2a, key2b, key3a, key3b from t1;
|
|
|
|
|
insert into t1 (key1a, key1b, key2a, key2b, key3a, key3b)
|
|
|
|
|
select key1a, key1b, key2a, key2b, key3a, key3b from t1;
|
|
|
|
|
analyze table t1;
|
|
|
|
|
Table Op Msg_type Msg_text
|
|
|
|
|
test.t1 analyze status OK
|
|
|
|
|
select count(*) from t1;
|
|
|
|
|
count(*)
|
|
|
|
|
5184
|
|
|
|
|
explain select count(*) from t1 where
|
|
|
|
|
key1a = 2 and key1b is null and key2a = 2 and key2b is null;
|
|
|
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
|
|
|
1 SIMPLE t1 index_merge i1,i2 i1,i2 10,10 NULL 3 Using intersect(i1,i2); Using where; Using index
|
|
|
|
|
select count(*) from t1 where
|
|
|
|
|
key1a = 2 and key1b is null and key2a = 2 and key2b is null;
|
|
|
|
|
count(*)
|
|
|
|
|
4
|
|
|
|
|
explain select count(*) from t1 where
|
|
|
|
|
key1a = 2 and key1b is null and key3a = 2 and key3b is null;
|
|
|
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|
|
|
|
1 SIMPLE t1 index_merge i1,i3 i1,i3 10,10 NULL 3 Using intersect(i1,i3); Using where; Using index
|
|
|
|
|
select count(*) from t1 where
|
|
|
|
|
key1a = 2 and key1b is null and key3a = 2 and key3b is null;
|
|
|
|
|
count(*)
|
|
|
|
|
4
|
|
|
|
|
drop table t1,t2;
|
2005-06-20 10:56:37 +02:00
|
|
|
create table t1 (
|
|
|
|
|
id1 int,
|
|
|
|
|
id2 date ,
|
|
|
|
|
index idx2 (id1,id2),
|
|
|
|
|
index idx1 (id2)
|
|
|
|
|
) engine = innodb;
|
|
|
|
|
insert into t1 values(1,'20040101'), (2,'20040102');
|
|
|
|
|
select * from t1 where id1 = 1 and id2= '20040101';
|
|
|
|
|
id1 id2
|
|
|
|
|
1 2004-01-01
|
|
|
|
|
drop table t1;
|
2005-08-30 01:14:39 +02:00
|
|
|
drop view if exists v1;
|
|
|
|
|
CREATE TABLE t1 (
|
|
|
|
|
`oid` int(11) unsigned NOT NULL auto_increment,
|
|
|
|
|
`fk_bbk_niederlassung` int(11) unsigned NOT NULL,
|
|
|
|
|
`fk_wochentag` int(11) unsigned NOT NULL,
|
|
|
|
|
`uhrzeit_von` time NOT NULL COMMENT 'HH:MM',
|
|
|
|
|
`uhrzeit_bis` time NOT NULL COMMENT 'HH:MM',
|
|
|
|
|
`geloescht` tinyint(4) NOT NULL,
|
|
|
|
|
`version` int(5) NOT NULL,
|
|
|
|
|
PRIMARY KEY (`oid`),
|
|
|
|
|
KEY `fk_bbk_niederlassung` (`fk_bbk_niederlassung`),
|
|
|
|
|
KEY `fk_wochentag` (`fk_wochentag`),
|
|
|
|
|
KEY `ix_version` (`version`)
|
|
|
|
|
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
|
|
|
|
|
insert into t1 values
|
|
|
|
|
(1, 38, 1, '08:00:00', '13:00:00', 0, 1),
|
|
|
|
|
(2, 38, 2, '08:00:00', '13:00:00', 0, 1),
|
|
|
|
|
(3, 38, 3, '08:00:00', '13:00:00', 0, 1),
|
|
|
|
|
(4, 38, 4, '08:00:00', '13:00:00', 0, 1),
|
|
|
|
|
(5, 38, 5, '08:00:00', '13:00:00', 0, 1),
|
|
|
|
|
(6, 38, 5, '08:00:00', '13:00:00', 1, 2),
|
|
|
|
|
(7, 38, 3, '08:00:00', '13:00:00', 1, 2),
|
|
|
|
|
(8, 38, 1, '08:00:00', '13:00:00', 1, 2),
|
|
|
|
|
(9, 38, 2, '08:00:00', '13:00:00', 1, 2),
|
|
|
|
|
(10, 38, 4, '08:00:00', '13:00:00', 1, 2),
|
|
|
|
|
(11, 38, 1, '08:00:00', '13:00:00', 0, 3),
|
|
|
|
|
(12, 38, 2, '08:00:00', '13:00:00', 0, 3),
|
|
|
|
|
(13, 38, 3, '08:00:00', '13:00:00', 0, 3),
|
|
|
|
|
(14, 38, 4, '08:00:00', '13:00:00', 0, 3),
|
|
|
|
|
(15, 38, 5, '08:00:00', '13:00:00', 0, 3),
|
|
|
|
|
(16, 38, 4, '08:00:00', '13:00:00', 0, 4),
|
|
|
|
|
(17, 38, 5, '08:00:00', '13:00:00', 0, 4),
|
|
|
|
|
(18, 38, 1, '08:00:00', '13:00:00', 0, 4),
|
|
|
|
|
(19, 38, 2, '08:00:00', '13:00:00', 0, 4),
|
|
|
|
|
(20, 38, 3, '08:00:00', '13:00:00', 0, 4),
|
|
|
|
|
(21, 7, 1, '08:00:00', '13:00:00', 0, 1),
|
|
|
|
|
(22, 7, 2, '08:00:00', '13:00:00', 0, 1),
|
|
|
|
|
(23, 7, 3, '08:00:00', '13:00:00', 0, 1),
|
|
|
|
|
(24, 7, 4, '08:00:00', '13:00:00', 0, 1),
|
|
|
|
|
(25, 7, 5, '08:00:00', '13:00:00', 0, 1);
|
|
|
|
|
create view v1 as
|
|
|
|
|
select
|
|
|
|
|
zeit1.oid AS oid,
|
|
|
|
|
zeit1.fk_bbk_niederlassung AS fk_bbk_niederlassung,
|
|
|
|
|
zeit1.fk_wochentag AS fk_wochentag,
|
|
|
|
|
zeit1.uhrzeit_von AS uhrzeit_von,
|
|
|
|
|
zeit1.uhrzeit_bis AS uhrzeit_bis,
|
|
|
|
|
zeit1.geloescht AS geloescht,
|
|
|
|
|
zeit1.version AS version
|
|
|
|
|
from
|
|
|
|
|
t1 zeit1
|
|
|
|
|
where
|
|
|
|
|
(zeit1.version =
|
|
|
|
|
(select max(zeit2.version) AS `max(version)`
|
|
|
|
|
from t1 zeit2
|
|
|
|
|
where
|
|
|
|
|
((zeit1.fk_bbk_niederlassung = zeit2.fk_bbk_niederlassung) and
|
|
|
|
|
(zeit1.fk_wochentag = zeit2.fk_wochentag) and
|
|
|
|
|
(zeit1.uhrzeit_von = zeit2.uhrzeit_von) and
|
|
|
|
|
(zeit1.uhrzeit_bis = zeit2.uhrzeit_bis)
|
|
|
|
|
)
|
|
|
|
|
)
|
|
|
|
|
)
|
|
|
|
|
and (zeit1.geloescht = 0);
|
|
|
|
|
select * from v1 where oid = 21;
|
|
|
|
|
oid fk_bbk_niederlassung fk_wochentag uhrzeit_von uhrzeit_bis geloescht version
|
|
|
|
|
21 7 1 08:00:00 13:00:00 0 1
|
|
|
|
|
drop view v1;
|
|
|
|
|
drop table t1;
|
2005-10-01 09:56:01 +02:00
|
|
|
CREATE TABLE t1(
|
|
|
|
|
t_cpac varchar(2) NOT NULL,
|
|
|
|
|
t_vers varchar(4) NOT NULL,
|
|
|
|
|
t_rele varchar(2) NOT NULL,
|
|
|
|
|
t_cust varchar(4) NOT NULL,
|
|
|
|
|
filler1 char(250) default NULL,
|
|
|
|
|
filler2 char(250) default NULL,
|
|
|
|
|
PRIMARY KEY (t_cpac,t_vers,t_rele,t_cust),
|
|
|
|
|
UNIQUE KEY IX_4 (t_cust,t_cpac,t_vers,t_rele),
|
|
|
|
|
KEY IX_5 (t_vers,t_rele,t_cust)
|
|
|
|
|
) ENGINE=InnoDB;
|
|
|
|
|
insert into t1 values
|
|
|
|
|
('tm','2.5 ','a ',' ','',''), ('tm','2.5U','a ','stnd','',''),
|
|
|
|
|
('da','3.3 ','b ',' ','',''), ('da','3.3U','b ','stnd','',''),
|
|
|
|
|
('tl','7.6 ','a ',' ','',''), ('tt','7.6 ','a ',' ','',''),
|
|
|
|
|
('bc','B61 ','a ',' ','',''), ('bp','B61 ','a ',' ','',''),
|
|
|
|
|
('ca','B61 ','a ',' ','',''), ('ci','B61 ','a ',' ','',''),
|
|
|
|
|
('cp','B61 ','a ',' ','',''), ('dm','B61 ','a ',' ','',''),
|
|
|
|
|
('ec','B61 ','a ',' ','',''), ('ed','B61 ','a ',' ','',''),
|
|
|
|
|
('fm','B61 ','a ',' ','',''), ('nt','B61 ','a ',' ','',''),
|
|
|
|
|
('qm','B61 ','a ',' ','',''), ('tc','B61 ','a ',' ','',''),
|
|
|
|
|
('td','B61 ','a ',' ','',''), ('tf','B61 ','a ',' ','',''),
|
|
|
|
|
('tg','B61 ','a ',' ','',''), ('ti','B61 ','a ',' ','',''),
|
|
|
|
|
('tp','B61 ','a ',' ','',''), ('ts','B61 ','a ',' ','',''),
|
|
|
|
|
('wh','B61 ','a ',' ','',''), ('bc','B61U','a ','stnd','',''),
|
|
|
|
|
('bp','B61U','a ','stnd','',''), ('ca','B61U','a ','stnd','',''),
|
|
|
|
|
('ci','B61U','a ','stnd','',''), ('cp','B61U','a ','stnd','',''),
|
|
|
|
|
('dm','B61U','a ','stnd','',''), ('ec','B61U','a ','stnd','',''),
|
|
|
|
|
('fm','B61U','a ','stnd','',''), ('nt','B61U','a ','stnd','',''),
|
|
|
|
|
('qm','B61U','a ','stnd','',''), ('tc','B61U','a ','stnd','',''),
|
|
|
|
|
('td','B61U','a ','stnd','',''), ('tf','B61U','a ','stnd','',''),
|
|
|
|
|
('tg','B61U','a ','stnd','',''), ('ti','B61U','a ','stnd','',''),
|
|
|
|
|
('tp','B61U','a ','stnd','',''), ('ts','B61U','a ','stnd','',''),
|
|
|
|
|
('wh','B61U','a ','stnd','','');
|
|
|
|
|
show create table t1;
|
|
|
|
|
Table Create Table
|
|
|
|
|
t1 CREATE TABLE `t1` (
|
|
|
|
|
`t_cpac` varchar(2) NOT NULL,
|
|
|
|
|
`t_vers` varchar(4) NOT NULL,
|
|
|
|
|
`t_rele` varchar(2) NOT NULL,
|
|
|
|
|
`t_cust` varchar(4) NOT NULL,
|
2006-02-22 10:09:59 +01:00
|
|
|
`filler1` char(250) DEFAULT NULL,
|
|
|
|
|
`filler2` char(250) DEFAULT NULL,
|
2006-02-02 20:39:28 +01:00
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PRIMARY KEY (`t_cpac`,`t_vers`,`t_rele`,`t_cust`),
|
2005-10-01 09:56:01 +02:00
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UNIQUE KEY `IX_4` (`t_cust`,`t_cpac`,`t_vers`,`t_rele`),
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KEY `IX_5` (`t_vers`,`t_rele`,`t_cust`)
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) ENGINE=InnoDB DEFAULT CHARSET=latin1
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select t_vers,t_rele,t_cust,filler1 from t1 where t_vers = '7.6';
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t_vers t_rele t_cust filler1
|
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|
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|
7.6 a
|
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|
7.6 a
|
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select t_vers,t_rele,t_cust,filler1 from t1 where t_vers = '7.6'
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and t_rele='a' and t_cust = ' ';
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t_vers t_rele t_cust filler1
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|
7.6 a
|
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7.6 a
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drop table t1;
|
2006-04-13 14:05:32 +02:00
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|
|
create table t1 (
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pk int(11) not null auto_increment,
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a int(11) not null default '0',
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b int(11) not null default '0',
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c int(11) not null default '0',
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filler1 datetime, filler2 varchar(15),
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filler3 longtext,
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kp1 varchar(4), kp2 varchar(7),
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kp3 varchar(2), kp4 varchar(4),
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kp5 varchar(7),
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|
|
filler4 char(1),
|
|
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|
|
primary key (pk),
|
|
|
|
|
key idx1(a,b,c),
|
|
|
|
|
key idx2(c),
|
|
|
|
|
key idx3(kp1,kp2,kp3,kp4,kp5)
|
|
|
|
|
) engine=innodb default charset=latin1;
|
|
|
|
|
set @fill=NULL;
|
|
|
|
|
SELECT COUNT(*) FROM t1 WHERE b = 0 AND a = 0 AND c = 13286427 AND
|
|
|
|
|
kp1='279' AND kp2='ELM0678' AND kp3='6' AND kp4='10' AND kp5 = 'R ';
|
|
|
|
|
COUNT(*)
|
|
|
|
|
1
|
|
|
|
|
drop table t1;
|
