drop table if exists t1,t2,t3,t4,t5,t6,t7;
CREATE TABLE t1 (a blob, b text, c blob(250), d text(70000), e text(70000000));
show columns from t1;
Field	Type	Null	Key	Default	Extra
a	blob	YES		NULL	
b	text	YES		NULL	
c	tinyblob	YES		NULL	
d	mediumtext	YES		NULL	
e	longtext	YES		NULL	
CREATE TABLE t2 (a char(255), b varbinary(70000), c varchar(70000000));
Warnings:
Note	1246	Converting column 'b' from VARBINARY to BLOB
Note	1246	Converting column 'c' from VARCHAR to TEXT
CREATE TABLE t4 (c varchar(65530) character set utf8 not null);
Warnings:
Note	1246	Converting column 'c' from VARCHAR to TEXT
show columns from t2;
Field	Type	Null	Key	Default	Extra
a	char(255)	YES		NULL	
b	mediumblob	YES		NULL	
c	longtext	YES		NULL	
create table t3 (a long, b long byte);
show create TABLE t3;
Table	Create Table
t3	CREATE TABLE `t3` (
  `a` mediumtext,
  `b` mediumblob
) ENGINE=MyISAM DEFAULT CHARSET=latin1
show create TABLE t4;
Table	Create Table
t4	CREATE TABLE `t4` (
  `c` mediumtext character set utf8 NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1,t2,t3,t4;
CREATE TABLE t1 (a char(257) default "hello");
ERROR 42000: Column length too big for column 'a' (max = 255); use BLOB or TEXT instead
CREATE TABLE t2 (a char(256));
ERROR 42000: Column length too big for column 'a' (max = 255); use BLOB or TEXT instead
CREATE TABLE t1 (a varchar(70000) default "hello");
ERROR 42000: Column length too big for column 'a' (max = 65535); use BLOB or TEXT instead
CREATE TABLE t2 (a blob default "hello");
ERROR 42000: BLOB/TEXT column 'a' can't have a default value
drop table if exists t1,t2;
create table t1 (nr int(5) not null auto_increment,b blob,str char(10), primary key (nr));
insert into t1 values (null,"a","A");
insert into t1 values (null,"bbb","BBB");
insert into t1 values (null,"ccc","CCC");
select last_insert_id();
last_insert_id()
3
select * from t1,t1 as t2;
nr	b	str	nr	b	str
1	a	A	1	a	A
2	bbb	BBB	1	a	A
3	ccc	CCC	1	a	A
1	a	A	2	bbb	BBB
2	bbb	BBB	2	bbb	BBB
3	ccc	CCC	2	bbb	BBB
1	a	A	3	ccc	CCC
2	bbb	BBB	3	ccc	CCC
3	ccc	CCC	3	ccc	CCC
drop table t1;
create table t1 (a text);
insert into t1 values ('where');
update t1 set a='Where';
select * from t1;
a
Where
drop table t1;
create table t1 (t text,c char(10),b blob, d binary(10));
insert into t1 values (NULL,NULL,NULL,NULL);
insert into t1 values ("","","","");
insert into t1 values ("hello","hello","hello","hello");
insert into t1 values ("HELLO","HELLO","HELLO","HELLO");
insert into t1 values ("HELLO MY","HELLO MY","HELLO MY","HELLO MY");
insert into t1 values ("a","a","a","a");
insert into t1 values (1,1,1,1);
insert into t1 values (NULL,NULL,NULL,NULL);
update t1 set c="",b=null where c="1";
lock tables t1 READ;
show full fields from t1;
Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
t	text	latin1_swedish_ci	YES		NULL		#	
c	char(10)	latin1_swedish_ci	YES		NULL		#	
b	blob	NULL	YES		NULL		#	
d	binary(10)	NULL	YES		NULL		#	
lock tables t1 WRITE;
show full fields from t1;
Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
t	text	latin1_swedish_ci	YES		NULL		#	
c	char(10)	latin1_swedish_ci	YES		NULL		#	
b	blob	NULL	YES		NULL		#	
d	binary(10)	NULL	YES		NULL		#	
unlock tables;
select t from t1 where t like "hello";
t
hello
HELLO
select c from t1 where c like "hello";
c
hello
HELLO
select b from t1 where b like "hello";
b
hello
select d from t1 where d like "hello";
d
hello
select c from t1 having c like "hello";
c
hello
HELLO
select d from t1 having d like "hello";
d
hello
select t from t1 where t like "%HELLO%";
t
hello
HELLO
HELLO MY
select c from t1 where c like "%HELLO%";
c
hello
HELLO
HELLO MY
select b from t1 where b like "%HELLO%";
b
HELLO
HELLO MY
select d from t1 where d like "%HELLO%";
d
HELLO
HELLO MY
select c from t1 having c like "%HELLO%";
c
hello
HELLO
HELLO MY
select d from t1 having d like "%HELLO%";
d
HELLO
HELLO MY
select d from t1 having d like "%HE%LLO%";
d
HELLO
HELLO MY
select t from t1 order by t;
t
NULL
NULL

1
a
hello
HELLO
HELLO MY
select c from t1 order by c;
c
NULL
NULL


a
hello
HELLO
HELLO MY
select b from t1 order by b;
b
NULL
NULL
NULL

HELLO
HELLO MY
a
hello
select d from t1 order by d;
d
NULL
NULL

1
HELLO
HELLO MY
a
hello
select distinct t from t1;
t
NULL

hello
HELLO MY
a
1
select distinct b from t1;
b
NULL

hello
HELLO
HELLO MY
a
select distinct t from t1 order by t;
t
NULL

1
a
hello
HELLO MY
select distinct b from t1 order by b;
b
NULL

HELLO
HELLO MY
a
hello
select t from t1 group by t;
t
NULL

1
a
hello
HELLO MY
select b from t1 group by b;
b
NULL

HELLO
HELLO MY
a
hello
set option sql_big_tables=1;
select distinct t from t1;
t
NULL

hello
HELLO MY
a
1
select distinct b from t1;
b
NULL

hello
HELLO
HELLO MY
a
select distinct t from t1 order by t;
t
NULL

1
a
hello
HELLO MY
select distinct b from t1 order by b;
b
NULL

HELLO
HELLO MY
a
hello
select distinct c from t1;
c
NULL

hello
HELLO MY
a
select distinct d from t1;
d
NULL

hello
HELLO
HELLO MY
a
1
select distinct c from t1 order by c;
c
NULL

a
hello
HELLO MY
select distinct d from t1 order by d;
d
NULL

1
HELLO
HELLO MY
a
hello
select c from t1 group by c;
c
NULL

a
hello
HELLO MY
select d from t1 group by d;
d
NULL

1
HELLO
HELLO MY
a
hello
set option sql_big_tables=0;
select distinct * from t1;
t	c	b	d
NULL	NULL	NULL	NULL
			
hello	hello	hello	hello
HELLO	HELLO	HELLO	HELLO
HELLO MY	HELLO MY	HELLO MY	HELLO MY
a	a	a	a
1		NULL	1
select t,count(*) from t1 group by t;
t	count(*)
NULL	2
	1
1	1
a	1
hello	2
HELLO MY	1
select b,count(*) from t1 group by b;
b	count(*)
NULL	3
	1
HELLO	1
HELLO MY	1
a	1
hello	1
select c,count(*) from t1 group by c;
c	count(*)
NULL	2
	2
a	1
hello	2
HELLO MY	1
select d,count(*) from t1 group by d;
d	count(*)
NULL	2
	1
1	1
HELLO	1
HELLO MY	1
a	1
hello	1
drop table t1;
create table t1 (a text, unique (a(2100)));
ERROR 42000: Specified key was too long; max key length is 1000 bytes
create table t1 (a text, key (a(2100)));
Warnings:
Warning	1071	Specified key was too long; max key length is 1000 bytes
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` text,
  KEY `a` (`a`(1000))
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
CREATE TABLE t1 (
t1_id bigint(21) NOT NULL auto_increment,
_field_72 varchar(128) DEFAULT '' NOT NULL,
_field_95 varchar(32),
_field_115 tinyint(4) DEFAULT '0' NOT NULL,
_field_122 tinyint(4) DEFAULT '0' NOT NULL,
_field_126 tinyint(4),
_field_134 tinyint(4),
PRIMARY KEY (t1_id),
UNIQUE _field_72 (_field_72),
KEY _field_115 (_field_115),
KEY _field_122 (_field_122)
);
INSERT INTO t1 VALUES (1,'admin','21232f297a57a5a743894a0e4a801fc3',0,1,NULL,NULL);
INSERT INTO t1 VALUES (2,'hroberts','7415275a8c95952901e42b13a6b78566',0,1,NULL,NULL);
INSERT INTO t1 VALUES (3,'guest','d41d8cd98f00b204e9800998ecf8427e',1,0,NULL,NULL);
CREATE TABLE t2 (
seq_0_id bigint(21) DEFAULT '0' NOT NULL,
seq_1_id bigint(21) DEFAULT '0' NOT NULL,
PRIMARY KEY (seq_0_id,seq_1_id)
);
INSERT INTO t2 VALUES (1,1);
INSERT INTO t2 VALUES (2,1);
INSERT INTO t2 VALUES (2,2);
CREATE TABLE t3 (
t3_id bigint(21) NOT NULL auto_increment,
_field_131 varchar(128),
_field_133 tinyint(4) DEFAULT '0' NOT NULL,
_field_135 datetime DEFAULT '0000-00-00 00:00:00' NOT NULL,
_field_137 tinyint(4),
_field_139 datetime DEFAULT '0000-00-00 00:00:00' NOT NULL,
_field_140 blob,
_field_142 tinyint(4) DEFAULT '0' NOT NULL,
_field_145 tinyint(4) DEFAULT '0' NOT NULL,
_field_148 tinyint(4) DEFAULT '0' NOT NULL,
PRIMARY KEY (t3_id),
KEY _field_133 (_field_133),
KEY _field_135 (_field_135),
KEY _field_139 (_field_139),
KEY _field_142 (_field_142),
KEY _field_145 (_field_145),
KEY _field_148 (_field_148)
);
INSERT INTO t3 VALUES (1,'test job 1',0,'0000-00-00 00:00:00',0,'1999-02-25 22:43:32','test\r\njob\r\n1',0,0,0);
INSERT INTO t3 VALUES (2,'test job 2',0,'0000-00-00 00:00:00',0,'1999-02-26 21:08:04','',0,0,0);
CREATE TABLE t4 (
seq_0_id bigint(21) DEFAULT '0' NOT NULL,
seq_1_id bigint(21) DEFAULT '0' NOT NULL,
PRIMARY KEY (seq_0_id,seq_1_id)
);
INSERT INTO t4 VALUES (1,1);
INSERT INTO t4 VALUES (2,1);
CREATE TABLE t5 (
t5_id bigint(21) NOT NULL auto_increment,
_field_149 tinyint(4),
_field_156 varchar(128) DEFAULT '' NOT NULL,
_field_157 varchar(128) DEFAULT '' NOT NULL,
_field_158 varchar(128) DEFAULT '' NOT NULL,
_field_159 varchar(128) DEFAULT '' NOT NULL,
_field_160 varchar(128) DEFAULT '' NOT NULL,
_field_161 varchar(128) DEFAULT '' NOT NULL,
PRIMARY KEY (t5_id),
KEY _field_156 (_field_156),
KEY _field_157 (_field_157),
KEY _field_158 (_field_158),
KEY _field_159 (_field_159),
KEY _field_160 (_field_160),
KEY _field_161 (_field_161)
);
INSERT INTO t5 VALUES (1,0,'tomato','','','','','');
INSERT INTO t5 VALUES (2,0,'cilantro','','','','','');
CREATE TABLE t6 (
seq_0_id bigint(21) DEFAULT '0' NOT NULL,
seq_1_id bigint(21) DEFAULT '0' NOT NULL,
PRIMARY KEY (seq_0_id,seq_1_id)
);
INSERT INTO t6 VALUES (1,1);
INSERT INTO t6 VALUES (1,2);
INSERT INTO t6 VALUES (2,2);
CREATE TABLE t7 (
t7_id bigint(21) NOT NULL auto_increment,
_field_143 tinyint(4),
_field_165 varchar(32),
_field_166 smallint(6) DEFAULT '0' NOT NULL,
PRIMARY KEY (t7_id),
KEY _field_166 (_field_166)
);
INSERT INTO t7 VALUES (1,0,'High',1);
INSERT INTO t7 VALUES (2,0,'Medium',2);
INSERT INTO t7 VALUES (3,0,'Low',3);
select replace(t3._field_140, "\r","^M"),t3_id,min(t3._field_131), min(t3._field_135), min(t3._field_139), min(t3._field_137), min(link_alias_142._field_165), min(link_alias_133._field_72), min(t3._field_145), min(link_alias_148._field_156), replace(min(t3._field_140), "\r","^M"),t3.t3_id from t3 left join t4 on t4.seq_0_id = t3.t3_id left join t7 link_alias_142 on t4.seq_1_id = link_alias_142.t7_id left join t6 on t6.seq_0_id = t3.t3_id left join t1 link_alias_133 on t6.seq_1_id = link_alias_133.t1_id left join t2 on t2.seq_0_id = t3.t3_id left join t5 link_alias_148 on t2.seq_1_id = link_alias_148.t5_id where t3.t3_id in (1) group by t3.t3_id order by link_alias_142._field_166, _field_139, link_alias_133._field_72, _field_135, link_alias_148._field_156;
replace(t3._field_140, "\r","^M")	t3_id	min(t3._field_131)	min(t3._field_135)	min(t3._field_139)	min(t3._field_137)	min(link_alias_142._field_165)	min(link_alias_133._field_72)	min(t3._field_145)	min(link_alias_148._field_156)	replace(min(t3._field_140), "\r","^M")	t3_id
test^M
job^M
1	1	test job 1	0000-00-00 00:00:00	1999-02-25 22:43:32	0	High	admin	0	tomato	test^M
job^M
1	1
drop table t1,t2,t3,t4,t5,t6,t7;
create table t1 (a blob);
insert into t1 values ("empty"),("");
select a,reverse(a) from t1;
a	reverse(a)
empty	ytpme
	
drop table t1;
create table t1 (a blob, key (a(10)));
insert into t1 values ("bye"),("hello"),("hello"),("hello word");
select * from t1 where a like "hello%";
a
hello
hello
hello word
drop table t1;
CREATE TABLE t1 (
f1 int(11) DEFAULT '0' NOT NULL,
f2 varchar(16) DEFAULT '' NOT NULL,
f5 text,
KEY index_name (f1,f2,f5(16))
);
INSERT INTO t1 VALUES (0,'traktor','1111111111111');
INSERT INTO t1 VALUES (1,'traktor','1111111111111111111111111');
select count(*) from t1 where f2='traktor';
count(*)
2
drop table t1;
create table t1 (foobar tinyblob not null, boggle smallint not null, key (foobar(32), boggle));
insert into t1 values ('fish', 10),('bear', 20);
select foobar, boggle from t1 where foobar = 'fish';
foobar	boggle
fish	10
select foobar, boggle from t1 where foobar = 'fish' and boggle = 10;
foobar	boggle
fish	10
drop table t1;
create table t1 (id integer auto_increment unique,imagem LONGBLOB not null default '');
insert into t1 (id) values (1);
select 
charset(load_file('../../std_data/words.dat')),
collation(load_file('../../std_data/words.dat')),
coercibility(load_file('../../std_data/words.dat'));
charset(load_file('../../std_data/words.dat'))	collation(load_file('../../std_data/words.dat'))	coercibility(load_file('../../std_data/words.dat'))
binary	binary	4
explain extended select 
charset(load_file('../../std_data/words.dat')),
collation(load_file('../../std_data/words.dat')),
coercibility(load_file('../../std_data/words.dat'));
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
Warnings:
Note	1003	select sql_no_cache charset(load_file(_latin1'../../std_data/words.dat')) AS `charset(load_file('../../std_data/words.dat'))`,collation(load_file(_latin1'../../std_data/words.dat')) AS `collation(load_file('../../std_data/words.dat'))`,coercibility(load_file(_latin1'../../std_data/words.dat')) AS `coercibility(load_file('../../std_data/words.dat'))`
update t1 set imagem=load_file('../../std_data/words.dat') where id=1;
select if(imagem is null, "ERROR", "OK"),length(imagem) from t1 where id = 1;
if(imagem is null, "ERROR", "OK")	length(imagem)
OK	581
drop table t1;
create table t1 select load_file('../../std_data/words.dat') l;
show full fields from t1;
Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
l	longblob	NULL	YES		NULL		#	
drop table t1;
create table t1 (id integer primary key auto_increment, txt text not null, unique index txt_index (txt (20)));
insert into t1 (txt) values ('Chevy'), ('Chevy ');
ERROR 23000: Duplicate entry 'Chevy ' for key 2
insert into t1 (txt) values ('Chevy'), ('CHEVY');
ERROR 23000: Duplicate entry 'Chevy' for key 2
alter table t1 drop index txt_index, add index txt_index (txt(20));
insert into t1 (txt) values ('Chevy ');
select * from t1 where txt='Chevy';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt='Chevy ';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt='Chevy ' or txt='Chevy';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt='Chevy' or txt='Chevy ';
id	txt
1	Chevy
2	Chevy 
select * from t1 where id='1' or id='2';
id	txt
1	Chevy
2	Chevy 
insert into t1 (txt) values('Ford');
select * from t1 where txt='Chevy' or txt='Chevy ' or txt='Ford';
id	txt
1	Chevy
2	Chevy 
3	Ford
select * from t1 where txt='Chevy' or txt='Chevy ';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt='Chevy' or txt='Chevy ' or txt=' Chevy';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt in ('Chevy ','Chevy');
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt in ('Chevy');
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt between 'Chevy' and 'Chevy';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt between 'Chevy' and 'Chevy' or txt='Chevy ';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt between 'Chevy' and 'Chevy ';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt < 'Chevy ';
id	txt
select * from t1 where txt <= 'Chevy';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt > 'Chevy';
id	txt
3	Ford
select * from t1 where txt >= 'Chevy';
id	txt
1	Chevy
2	Chevy 
3	Ford
drop table t1;
create table t1 (id integer primary key auto_increment, txt text, index txt_index (txt (20)));
insert into t1 (txt) values ('Chevy'), ('Chevy '), (NULL);
select * from t1 where txt='Chevy' or txt is NULL;
id	txt
3	NULL
1	Chevy
2	Chevy 
explain select * from t1 where txt='Chevy' or txt is NULL;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	range	txt_index	txt_index	23	NULL	2	Using where
select * from t1 where txt='Chevy ';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt='Chevy ' or txt='Chevy';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt='Chevy' or txt='Chevy ';
id	txt
1	Chevy
2	Chevy 
select * from t1 where id='1' or id='2';
id	txt
1	Chevy
2	Chevy 
insert into t1 (txt) values('Ford');
select * from t1 where txt='Chevy' or txt='Chevy ' or txt='Ford';
id	txt
1	Chevy
2	Chevy 
4	Ford
select * from t1 where txt='Chevy' or txt='Chevy ';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt='Chevy' or txt='Chevy ' or txt=' Chevy';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt in ('Chevy ','Chevy');
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt in ('Chevy');
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt between 'Chevy' and 'Chevy';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt between 'Chevy' and 'Chevy' or txt='Chevy ';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt between 'Chevy' and 'Chevy ';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt < 'Chevy ';
id	txt
select * from t1 where txt < 'Chevy ' or txt is NULL;
id	txt
3	NULL
select * from t1 where txt <= 'Chevy';
id	txt
1	Chevy
2	Chevy 
select * from t1 where txt > 'Chevy';
id	txt
4	Ford
select * from t1 where txt >= 'Chevy';
id	txt
1	Chevy
2	Chevy 
4	Ford
alter table t1 modify column txt blob;
explain select * from t1 where txt='Chevy' or txt is NULL;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref_or_null	txt_index	txt_index	23	const	2	Using where
select * from t1 where txt='Chevy' or txt is NULL;
id	txt
1	Chevy
3	NULL
explain select * from t1 where txt='Chevy' or txt is NULL order by txt;
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	t1	ref_or_null	txt_index	txt_index	23	const	2	Using where; Using filesort
select * from t1 where txt='Chevy' or txt is NULL order by txt;
id	txt
3	NULL
1	Chevy
drop table t1;
CREATE TABLE t1 ( i int(11) NOT NULL default '0',    c text NOT NULL, d varchar(1) NOT NULL DEFAULT ' ', PRIMARY KEY  (i), KEY (c(1),d));
INSERT t1 (i, c) VALUES (1,''),(2,''),(3,'asdfh'),(4,'');
select max(i) from t1 where c = '';
max(i)
4
drop table t1;
create table t1 (a int, b int, c tinyblob, d int, e int);
alter table t1 add primary key (a,b,c(255),d);
alter table t1 add key (a,b,d,e);
show create table t1;
Table	Create Table
t1	CREATE TABLE `t1` (
  `a` int(11) NOT NULL default '0',
  `b` int(11) NOT NULL default '0',
  `c` tinyblob NOT NULL,
  `d` int(11) NOT NULL default '0',
  `e` int(11) default NULL,
  PRIMARY KEY  (`a`,`b`,`c`(255),`d`),
  KEY `a` (`a`,`b`,`d`,`e`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
