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DROP TABLE IF EXISTS t1,t2,t3,t2aA,t1Aa;
DROP DATABASE IF EXISTS `TEST_$1`;
DROP DATABASE IF EXISTS `test_$1`;
DROP DATABASE IF EXISTS mysqltest_LC2;
CREATE TABLE T1 (a int);
INSERT INTO T1 VALUES (1);
SHOW TABLES LIKE "T1";
Tables_in_test (T1)
T1
SHOW TABLES LIKE "t1";
Tables_in_test (t1)
T1
SHOW CREATE TABLE T1;
Table Create Table
T1 CREATE TABLE `T1` (
`a` int(11) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
RENAME TABLE T1 TO T2;
SHOW TABLES LIKE "T2";
Tables_in_test (T2)
T2
SELECT * FROM t2;
a
1
RENAME TABLE T2 TO t3;
SHOW TABLES LIKE "T3";
Tables_in_test (T3)
t3
RENAME TABLE T3 TO T1;
SHOW TABLES LIKE "T1";
Tables_in_test (T1)
T1
ALTER TABLE T1 add b int;
SHOW TABLES LIKE "T1";
Tables_in_test (T1)
T1
ALTER TABLE T1 RENAME T2;
SHOW TABLES LIKE "T2";
Tables_in_test (T2)
T2
LOCK TABLE T2 WRITE;
ALTER TABLE T2 drop b;
SHOW TABLES LIKE "T2";
Tables_in_test (T2)
T2
UNLOCK TABLES;
RENAME TABLE T2 TO T1;
SHOW TABLES LIKE "T1";
Tables_in_test (T1)
T1
SELECT * from T1;
a
1
DROP TABLE T1;
CREATE DATABASE `TEST_$1`;
SHOW DATABASES LIKE "TEST%";
Database (TEST%)
TEST_$1
DROP DATABASE `test_$1`;
CREATE TABLE T1 (a int) engine=innodb;
INSERT INTO T1 VALUES (1);
SHOW TABLES LIKE "T1";
Tables_in_test (T1)
T1
SHOW TABLES LIKE "t1";
Tables_in_test (t1)
T1
SHOW CREATE TABLE T1;
Table Create Table
T1 CREATE TABLE `T1` (
`a` int(11) default NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1
RENAME TABLE T1 TO T2;
SHOW TABLES LIKE "T2";
Tables_in_test (T2)
T2
SELECT * FROM t2;
a
1
RENAME TABLE T2 TO t3;
SHOW TABLES LIKE "T3";
Tables_in_test (T3)
t3
RENAME TABLE T3 TO T1;
SHOW TABLES LIKE "T1";
Tables_in_test (T1)
T1
ALTER TABLE T1 add b int;
SHOW TABLES LIKE "T1";
Tables_in_test (T1)
T1
ALTER TABLE T1 RENAME T2;
SHOW TABLES LIKE "T2";
Tables_in_test (T2)
T2
LOCK TABLE T2 WRITE;
ALTER TABLE T2 drop b;
SHOW TABLES LIKE "T2";
Tables_in_test (T2)
T2
UNLOCK TABLES;
RENAME TABLE T2 TO T1;
SHOW TABLES LIKE "T1";
Tables_in_test (T1)
T1
SELECT * from T1;
a
1
DROP TABLE T1;
create table T1 (EVENT_ID int auto_increment primary key, LOCATION char(20));
insert into T1 values (NULL,"Mic-4"),(NULL,"Mic-5"),(NULL,"Mic-6");
SELECT LOCATION FROM T1 WHERE EVENT_ID=2 UNION ALL SELECT LOCATION FROM T1 WHERE EVENT_ID=3;
LOCATION
Mic-5
Mic-6
SELECT LOCATION FROM T1 WHERE EVENT_ID=2 UNION ALL SELECT LOCATION FROM T1 WHERE EVENT_ID=3;
LOCATION
Mic-5
Mic-6
SELECT LOCATION FROM T1 WHERE EVENT_ID=2 UNION ALL SELECT LOCATION FROM T1 WHERE EVENT_ID=3;
LOCATION
Mic-5
Mic-6
drop table T1;
create table T1 (A int);
alter table T1 add index (A);
show tables like 'T1%';
Tables_in_test (T1%)
T1
alter table t1 add index (A);
show tables like 't1%';
Tables_in_test (t1%)
t1
drop table t1;
create temporary table T1(a int(11), b varchar(8));
insert into T1 values (1, 'abc');
select * from T1;
a b
1 abc
alter table T1 add index (a);
select * from T1;
a b
1 abc
drop table T1;
create database mysqltest_LC2;
use mysqltest_LC2;
create table myUC (i int);
insert into myUC values (1),(2),(3);
select * from myUC;
i
1
2
3
use test;
drop database mysqltest_LC2;
create database mysqltest_LC2;
use mysqltest_LC2;
create table myUC (i int);
select * from myUC;
i
use test;
drop database mysqltest_LC2;
create table t2aA (col1 int);
create table t1Aa (col1 int);
select t1Aa.col1 from t1aA,t2Aa where t1Aa.col1 = t2aA.col1;
col1
drop table t2aA, t1Aa;
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