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drop table if exists t1;
select 0x41,0x41+0,0x41 | 0x7fffffffffffffff | 0,0xffffffffffffffff | 0 ;
0x41 0x41+0 0x41 | 0x7fffffffffffffff | 0 0xffffffffffffffff | 0
A 65 9223372036854775807 18446744073709551615
select 0x31+1,concat(0x31)+1,-0xf;
0x31+1 concat(0x31)+1 -0xf
50 2 -15
select x'31',0xffff+0;
x'31' 0xffff+0
1 65535
select X'FFFF'+0;
X'FFFF'+0
0
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: '\xFF\xFF'
SELECT x'31'+0, 0x31+0;
x'31'+0 0x31+0
1 49
SELECT x'31'+0.1e0, 0x31+0.1e0;
x'31'+0.1e0 0x31+0.1e0
1.1 49.1
SELECT x'312E39'+0e0, 0x312E39+0e0;
x'312E39'+0e0 0x312E39+0e0
1.9 3223097
SELECT CAST(x'31' AS SIGNED), CAST(0x31 AS SIGNED);
CAST(x'31' AS SIGNED) CAST(0x31 AS SIGNED)
1 49
SELECT CAST(x'31' AS DECIMAL(10,1)), CAST(0x31 AS DECIMAL(10,1));
CAST(x'31' AS DECIMAL(10,1)) CAST(0x31 AS DECIMAL(10,1))
1.0 49.0
SELECT CAST(x'312E39' AS SIGNED), CAST(0x312E39 AS SIGNED);
CAST(x'312E39' AS SIGNED) CAST(0x312E39 AS SIGNED)
1 3223097
Warnings:
Warning 1292 Truncated incorrect INTEGER value: '1.9'
SELECT CAST(x'312E39' AS DECIMAL(10,1)), CAST(0x312E39 AS DECIMAL(10,1));
CAST(x'312E39' AS DECIMAL(10,1)) CAST(0x312E39 AS DECIMAL(10,1))
1.9 3223097.0
EXPLAIN EXTENDED SELECT X'FFFF', 0xFFFF;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
Warnings:
Note 1003 select X'ffff' AS `X'FFFF'`,0xffff AS `0xFFFF`
CREATE TABLE t1 (a int);
INSERT INTO t1 VALUES (X'31'),(0x31);
INSERT INTO t1 VALUES (X'312E39'),(0x312E39);
SELECT * FROM t1;
a
1
49
2
3223097
DROP TABLE t1;
CREATE TABLE t1 (a DECIMAL(10,1));
INSERT INTO t1 VALUES (X'31'),(0x31);
INSERT INTO t1 VALUES (X'312E39'),(0x312E39);
SELECT * FROM t1;
a
1.0
49.0
1.9
3223097.0
DROP TABLE t1;
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;
explain extended select * from t1 where UNIQ=0x38afba1d73e6a18a;
id select_type table type possible_keys key key_len ref rows filtered Extra
1 SIMPLE t1 const UNIQ UNIQ 8 const 1 100.00
Warnings:
Note 1003 select 00000001 AS `ID`,004084688022709641610 AS `UNIQ` from `test`.`t1` where 1
drop table t1;
select x'hello';
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'x'hello'' at line 1
select 0xfg;
ERROR 42S22: Unknown column '0xfg' in 'field list'
create table t1 select 1 as x, 2 as xx;
select x,xx from t1;
x xx
1 2
drop table t1;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`a` varbinary(255)/*old*/ DEFAULT NULL,
`b` varchar(255)/*old*/ DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
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 Upgrade required. Please do "REPAIR TABLE `t1`" or dump/reload 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 COLLATE=latin1_swedish_ci
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
drop table t1;
drop table if exists table_28127_a;
drop table if exists table_28127_b;
create table table_28127_a(0b02 int);
show create table table_28127_a;
Table Create Table
table_28127_a CREATE TABLE `table_28127_a` (
`0b02` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
create table table_28127_b(0b2 int);
show create table table_28127_b;
Table Create Table
table_28127_b CREATE TABLE `table_28127_b` (
`0b2` int(11) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
drop table table_28127_a;
drop table table_28127_b;
select 0b01000001;
0b01000001
A
select 0x41;
0x41
A
select b'01000001';
b'01000001'
A
select x'41', 0+x'3635';
x'41' 0+x'3635'
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
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: ''
select 0x;
ERROR 42S22: Unknown column '0x' in 'field list'
select 0b;
ERROR 42S22: Unknown column '0b' in 'field list'
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