drop table if exists t1,t2,t3,t4,T1;
drop database if exists mysqltest;
create table T1 (id int primary key, Word varchar(40) not null, Index(Word));
create table t4 (id int primary key, Word varchar(40) not null);
INSERT INTO T1 VALUES (1, 'a'), (2, 'b'), (3, 'c');
INSERT INTO T4 VALUES(1,'match');
SELECT * FROM t1;
id	Word
1	a
2	b
3	c
SELECT T1.id from T1 LIMIT 1;
id
1
SELECT T2.id from t1 as T2 LIMIT 1;
id
1
SELECT * from t1 left join t4 on (test.t1.id= TEST.t4.id) where TEST.t1.id >= test.t4.id;
id	Word	id	Word
1	a	1	match
SELECT T2.id from t1 as t2 LIMIT 1;
Unknown table 'T2' in field list
RENAME TABLE T1 TO T2;
ALTER TABLE T2 ADD new_col int not null;
ALTER TABLE T2 RENAME T3;
show tables like 't_';
Tables_in_test (t_)
t3
t4
drop table t3,t4;
create table t1 (a int);
select count(*) from T1;
count(*)
0
select count(*) from t1;
count(*)
0
select count(T1.a) from t1;
Unknown table 'T1' in field list
select count(bags.a) from t1 as Bags;
Unknown table 'bags' in field list
drop table t1;
create database mysqltest;
use MYSQLTEST;
create table t1 (a int);
select T1.a from MYSQLTEST.T1;
a
select t1.a from MYSQLTEST.T1;
Unknown table 't1' in field list
select mysqltest.t1.* from MYSQLTEST.t1;
a
select MYSQLTEST.t1.* from MYSQLTEST.t1;
a
select MYSQLTEST.T1.* from MYSQLTEST.T1;
a
select MYSQLTEST.T1.* from T1;
a
alter table t1 rename to T1;
select MYSQLTEST.t1.* from MYSQLTEST.t1;
a
drop database mysqltest;