drop table if exists t1,t2;
create table t1 (a int not null primary key, b int not null,c int not null, key(b,c));
insert into t1 values (1,2,2),(2,2,3),(3,2,4),(4,2,4);
check table t1 fast;
Table	Op	Msg_type	Msg_text
test.t1	check	status	Table is already up to date
check table t1 fast;
Table	Op	Msg_type	Msg_text
test.t1	check	status	Table is already up to date
check table t1 changed;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
insert into t1 values (5,5,5);
check table t1 changed;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
check table t1 medium;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
check table t1 extended;
Table	Op	Msg_type	Msg_text
test.t1	check	status	OK
show index from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	0	PRIMARY	1	a	A	5	NULL	NULL		BTREE	
t1	1	b	1	b	A	1	NULL	NULL		BTREE	
t1	1	b	2	c	A	5	NULL	NULL		BTREE	
insert into t1 values (5,5,5);
Duplicate entry '5' for key 1
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	OK
optimize table t1;
Table	Op	Msg_type	Msg_text
test.t1	optimize	status	Table is already up to date
drop table t1;
show variables like "wait_timeout%";
Variable_name	Value
wait_timeout	28800
show variables like "WAIT_timeout%";
Variable_name	Value
wait_timeout	28800
show variables like "this_doesn't_exists%";
Variable_name	Value
show table status from test like "this_doesn't_exists%";
Name	Type	Row_format	Rows	Avg_row_length	Data_length	Max_data_length	Index_length	Data_free	Auto_increment	Create_time	Update_time	Check_time	Create_options	Comment
show databases;
Database
mysql
test
show databases like "test%";
Database (test%)
test
create table t1 (f1 int not null, f2 int not null, f3 int not null, f4 int not null, primary key(f1,f2,f3,f4));
insert into t1 values (1,1,1,0),(1,1,2,0),(1,1,3,0),(1,2,1,0),(1,2,2,0),(1,2,3,0),(1,3,1,0),(1,3,2,0),(1,3,3,0),(1,1,1,1),(1,1,2,1),(1,1,3,1),(1,2,1,1),(1,2,2,1),(1,2,3,1),(1,3,1,1),(1,3,2,1),(1,3,3,1);
analyze table t1;
Table	Op	Msg_type	Msg_text
test.t1	analyze	status	OK
show index from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	0	PRIMARY	1	f1	A	1	NULL	NULL		BTREE	
t1	0	PRIMARY	2	f2	A	3	NULL	NULL		BTREE	
t1	0	PRIMARY	3	f3	A	9	NULL	NULL		BTREE	
t1	0	PRIMARY	4	f4	A	18	NULL	NULL		BTREE	
repair table t1;
Table	Op	Msg_type	Msg_text
test.t1	repair	status	OK
show index from t1;
Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
t1	0	PRIMARY	1	f1	A	1	NULL	NULL		BTREE	
t1	0	PRIMARY	2	f2	A	3	NULL	NULL		BTREE	
t1	0	PRIMARY	3	f3	A	9	NULL	NULL		BTREE	
t1	0	PRIMARY	4	f4	A	18	NULL	NULL		BTREE	
drop table t1;
create temporary table t1 (a int not null);
show create table t1;
Table	Create Table
t1	CREATE TEMPORARY TABLE `t1` (
  `a` int(11) NOT NULL default '0'
) TYPE=MyISAM
alter table t1 rename t2;
show create table t2;
Table	Create Table
t2	CREATE TEMPORARY TABLE `t2` (
  `a` int(11) NOT NULL default '0'
) TYPE=MyISAM
drop table t2;
create table t1 (
test_set set( 'val1', 'val2', 'val3' ) not null default '',
name char(20) default 'O''Brien'
  ) comment = 'it\'s a table' ;
show create table t1 ;
Table	Create Table
t1	CREATE TABLE `t1` (
  `test_set` set('val1','val2','val3') NOT NULL default '',
  `name` char(20) default 'O''Brien'
) TYPE=MyISAM COMMENT='it''s a table'
drop table t1;
create table t1 (a int not null, unique aa (a));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL default '0',
  UNIQUE KEY `aa` (`a`)
) TYPE=MyISAM
drop table t1;
create table t1 (a int not null, primary key (a));
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL default '0',
  PRIMARY KEY  (`a`)
) TYPE=MyISAM
drop table t1;
flush tables;
show open tables;
Database	Table	In_use	Name_locked
create table t1(n int);
insert into t1 values (1);
show open tables;
Database	Table	In_use	Name_locked
test	t1	0	0
drop table t1;
create table t1 (a int not null, b VARCHAR(10), INDEX (b) ) AVG_ROW_LENGTH=10 CHECKSUM=1 COMMENT="test" TYPE=MYISAM MIN_ROWS=10 MAX_ROWS=100 PACK_KEYS=1 DELAY_KEY_WRITE=1 ROW_FORMAT=fixed;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL default '0',
  `b` char(10) default NULL,
  KEY `b` (`b`)
) TYPE=MyISAM MIN_ROWS=10 MAX_ROWS=100 AVG_ROW_LENGTH=10 PACK_KEYS=1 CHECKSUM=1 DELAY_KEY_WRITE=1 ROW_FORMAT=FIXED COMMENT='test'
alter table t1 MAX_ROWS=200 ROW_FORMAT=dynamic PACK_KEYS=0;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL default '0',
  `b` varchar(10) default NULL,
  KEY `b` (`b`)
) TYPE=MyISAM MIN_ROWS=10 MAX_ROWS=200 AVG_ROW_LENGTH=10 PACK_KEYS=0 CHECKSUM=1 DELAY_KEY_WRITE=1 ROW_FORMAT=DYNAMIC COMMENT='test'
ALTER TABLE t1 AVG_ROW_LENGTH=0 CHECKSUM=0 COMMENT="" MIN_ROWS=0 MAX_ROWS=0 PACK_KEYS=DEFAULT DELAY_KEY_WRITE=0 ROW_FORMAT=default;
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL default '0',
  `b` varchar(10) default NULL,
  KEY `b` (`b`)
) TYPE=MyISAM
drop table t1;
create table t1 (a decimal(9,2), b decimal (9,0), e double(9,2), f double(5,0), h float(3,2), i float(3,0));
show columns from t1;
Field	Type	Null	Key	Default	Extra
a	decimal(9,2)	YES		NULL	
b	decimal(9,0)	YES		NULL	
e	double(9,2)	YES		NULL	
f	double(5,0)	YES		NULL	
h	float(3,2)	YES		NULL	
i	float(3,0)	YES		NULL	
drop table t1;
create table t1 (c decimal, d double, f float, r real);
show columns from t1;
Field	Type	Null	Key	Default	Extra
c	decimal(10,0)	YES		NULL	
d	double	YES		NULL	
f	float	YES		NULL	
r	double	YES		NULL	
drop table t1;
create table t1 (c decimal(3,3), d double(3,3), f float(3,3));
show columns from t1;
Field	Type	Null	Key	Default	Extra
c	decimal(4,3)	YES		NULL	
d	double(4,3)	YES		NULL	
f	float(4,3)	YES		NULL	
drop table t1;