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DELIMITER $$
CREATE
FUNCTION `t_girl`
.
`func_rand_string`
(
f_num tinyint
unsigned
,
f_type tinyint
unsigned
)
RETURNS varchar
(
32)
BEGIN
-- Translate the number to letter.
-- No 1 stands for string only.
-- No 2 stands for number only.
-- No 3 stands for combination of the above.
declare i int
unsigned
default
0;
declare v_result varchar
(
255)
default
''
;
while i <
f_num do
if f_type =
1 then
set
v_result =
concat
(
v_result,
char
(
97+
ceil(
rand
(
)
*
25)
)
)
;
elseif f_type=
2 then
set
v_result =
concat
(
v_result,
char
(
48+
ceil(
rand
(
)
*
9)
)
)
;
elseif f_type=
3 then
set
v_result =
concat
(
v_result,
substring
(
replace
(
uuid
(
)
,
'-'
,
''
)
,
i+
1,
1)
)
;
end
if;
set
i =
i +
1;
end
while;
return v_result;
END
$
$
DELIMITER ;
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select func_rand_string(12,3);
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CREATE TABLE `taa` (
`year` varchar(4) DEFAULT NULL,
`month` varchar(2) DEFAULT NULL,
`amount` double DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf
"year","m ......
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#!/bin/bash
#This is a ShellScript For Auto DB Backup
#Powered by aspbiz
#2004-09
#Setting
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MSSQL:select Right(sys.fn_VarBinToHexStr(hashbytes('MD5', '123456')),32)
MSSQL16λ:select Right(sys.fn_VarBinToHexStr(hashbytes('MD5', '123456')),16)
MySQL:select md5('123456')
.NET:string ½á¹û×Ö·û´®=System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFil ......
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create table tb_User(Id int auto_increment
not null primary key,UserName varchar(50),Password varchar(20));
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desc tb_User;
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ÖØÃüÃû±í£ºalter table tb_User rename
tb_UserInfo;
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access denied for user 'root'@'localhost' (using password: YES);
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[root@localhost home]# mysql - ......