2003-01-06 01:48:59 +02:00
drop table if exists t1;
2001-09-27 23:05:54 -06:00
select 0x41,0x41+0,0x41 | 0x7fffffffffffffff | 0,0xffffffffffffffff | 0 ;
2000-12-28 03:56:38 +02:00
0x41 0x41+0 0x41 | 0x7fffffffffffffff | 0 0xffffffffffffffff | 0
2002-01-29 18:32:16 +02:00
A 65 9223372036854775807 18446744073709551615
2001-09-27 23:05:54 -06:00
select 0x31+1,concat(0x31)+1,-0xf;
2000-12-28 03:56:38 +02:00
0x31+1 concat(0x31)+1 -0xf
50 2 -15
2001-09-27 23:05:54 -06:00
select x'31',X'ffff'+0;
2001-07-04 09:39:58 +03:00
x'31' X'ffff'+0
1 65535
2001-09-27 23:05:54 -06:00
create table t1 (ID int(8) unsigned zerofill not null auto_increment,UNIQ bigint(21) unsigned zerofill not null,primary key (ID),unique (UNIQ) );
insert into t1 set UNIQ=0x38afba1d73e6a18a;
insert into t1 set UNIQ=123;
2003-10-30 12:57:26 +02:00
explain extended select * from t1 where UNIQ=0x38afba1d73e6a18a;
2002-09-26 23:08:22 +03:00
id select_type table type possible_keys key key_len ref rows Extra
2002-10-03 18:47:04 +03:00
1 SIMPLE t1 const UNIQ UNIQ 8 const 1
2003-10-30 12:57:26 +02:00
Warnings:
2007-03-10 00:29:02 +03:00
Note 1003 select '00000001' AS `ID`,'004084688022709641610' AS `UNIQ` from `test`.`t1` where 1
2001-09-27 23:05:54 -06:00
drop table t1;
select x'hello';
2004-06-15 22:18:20 -05:00
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'x'hello'' at line 1
2001-09-27 23:05:54 -06:00
select 0xfg;
2003-06-04 18:28:51 +03:00
ERROR 42S22: Unknown column '0xfg' in 'field list'
2001-09-27 23:05:54 -06:00
create table t1 select 1 as x, 2 as xx;
select x,xx from t1;
2001-07-04 09:39:58 +03:00
x xx
1 2
2001-09-27 23:05:54 -06:00
drop table t1;
2006-11-09 12:00:27 +01:00
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varbinary(255) default NULL,
`b` varchar(255) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
select length(a), length(b) from t1;
length(a) length(b)
255 3
255 3
CHECK TABLE t1 FOR UPGRADE;
Table Op Msg_type Msg_text
test.t1 check error Table upgrade required. Please do "REPAIR TABLE `t1`" to fix it!
REPAIR TABLE t1;
Table Op Msg_type Msg_text
test.t1 repair status OK
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varbinary(255) default NULL,
`b` varchar(255) default NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
select length(a), length(b) from t1;
length(a) length(b)
3 3
3 3
insert into t1 values("ccc", "ddd");
select length(a), length(b) from t1;
length(a) length(b)
3 3
3 3
3 3
select hex(a), hex(b) from t1;
hex(a) hex(b)
616161 636363
626262 646464
636363 646464
select concat("'", a, "'"), concat("'", b, "'") from t1;
concat("'", a, "'") concat("'", b, "'")
'aaa' 'ccc'
'bbb' 'ddd'
'ccc' 'ddd'
drop table t1;
create table t1(a varbinary(255));
insert into t1 values("aaa ");
select length(a) from t1;
length(a)
6
alter table t1 modify a varchar(255);
select length(a) from t1;
length(a)
6
2009-04-28 20:12:18 +02:00
drop table t1;
2008-06-27 20:56:41 +05:00
select 0b01000001;
0b01000001
A
select 0x41;
0x41
A
select b'01000001';
b'01000001'
A
select x'41', 0+x'41';
x'41' 0+x'41'
A 65
select N'abc', length(N'abc');
abc length(N'abc')
abc 3
select N'', length(N'');
length(N'')
0
select '', length('');
length('')
0
select b'', 0+b'';
b'' 0+b''
0
select x'', 0+x'';
x'' 0+x''
0
select 0x;
ERROR 42S22: Unknown column '0x' in 'field list'
select 0b;
ERROR 42S22: Unknown column '0b' in 'field list'