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select CAST(1-2 AS UNSIGNED);
CAST(1-2 AS UNSIGNED)
18446744073709551615
select CAST(CAST(1-2 AS UNSIGNED) AS SIGNED INTEGER);
CAST(CAST(1-2 AS UNSIGNED) AS SIGNED INTEGER)
-1
select CONVERT('-1',UNSIGNED);
CONVERT('-1',UNSIGNED)
18446744073709551615
select cast(-5 as unsigned) | 1, cast(-5 as unsigned) & -1;
cast(-5 as unsigned) | 1 cast(-5 as unsigned) & -1
18446744073709551611 18446744073709551611
select cast(-5 as unsigned) -1, cast(-5 as unsigned) + 1;
cast(-5 as unsigned) -1 cast(-5 as unsigned) + 1
18446744073709551610 18446744073709551612
select ~5, cast(~5 as signed);
~5 cast(~5 as signed)
18446744073709551610 -6
select cast(5 as unsigned) -6.0;
cast(5 as unsigned) -6.0
-1.0
select cast("A" as binary) = "a", cast(BINARY "a" as CHAR) = "A";
cast("A" as binary) = "a" cast(BINARY "a" as CHAR) = "A"
0 1
select cast("2001-1-1" as DATE), cast("2001-1-1" as DATETIME);
cast("2001-1-1" as DATE) cast("2001-1-1" as DATETIME)
2001-01-01 2001-01-01 00:00:00
select cast("1:2:3" as TIME);
cast("1:2:3" as TIME)
01:02:03
set names binary;
select cast(_latin1'test' as char character set latin2);
cast(_latin1'test' as char character set latin2)
test
select cast(_koi8r'ΤΕΣΤ' as char character set cp1251);
cast(_koi8r'ΤΕΣΤ' as char character set cp1251)
ςερς
create table t1 select cast(_koi8r'ΤΕΣΤ' as char character set cp1251) as t;
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`t` char(4) character set cp1251 NOT NULL default ''
) TYPE=MyISAM CHARSET=latin1
drop table t1;
select cast("2001-1-1" as date) = "2001-01-01";
cast("2001-1-1" as date) = "2001-01-01"
1
select cast("2001-1-1" as datetime) = "2001-01-01 00:00:00";
cast("2001-1-1" as datetime) = "2001-01-01 00:00:00"
1
select cast("1:2:3" as TIME) = "1:02:03";
cast("1:2:3" as TIME) = "1:02:03"
0
select cast(NULL as DATE);
cast(NULL as DATE)
NULL
select cast(NULL as BINARY);
cast(NULL as BINARY)
NULL
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