asp防SQL注入函数
'SQL防注入函数，调用方法，在需要防注入的地方替换以前的request("XXXX")为SafeRequest("XXXX")
'www.yongfa365.com
Function
SafeRequest(ParaValue)
ParaValue =
Trim
(
Request
(ParaValue))
If
ParaValue =
""
Then
SafeRequest =
""
Exit
Function
End
If
'要过滤的字符以","隔开
LockValue =
"',Select,Update,Delete,insert,Count(,drop table,truncate,Asc(,Mid(,char(,xp_cmdshell,exec master,net localgroup administrators,And,net user,Or"
LockValue =
Split
(LockValue,
","
)
'判断是否有注入
For
i = 0
To
UBound
(LockValue)
If
InStr
(
LCase
(ParaValue),
LCase
(LockValue(i)))>0
Then
errmsg = 1
Exit
For
End
If
Next
'注入处理
If
errmsg = 1
Then
Response
.
Write
"<script language=
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[Sql]EXCEPT 和 INTERSECT关键字
http://www.cnblogs.com/treeyh/archive/2008/07/01/1232845.html
EXCEPT
从 EXCEPT 操作数左边的查询中返回右边的查询未返回的所有非重复值。
INTERSECT
返回 INTERSECT 操作数左右两边的两个查询均返回的所有非重复值。
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