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SQL Query String

Posted on 2001-06-27
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Last Modified: 2010-05-02
Hi,

I have this problem.

when i made a SQL string query example:

set rst = new recordset
rst.open "select * from table where field = 'ABC'", ConnStr, adOpenStatic, adLockReadOnly

Note that the criteria "ABC" is retrieved from user input. The qns is, if the user input "AB'C", my query string will have error as the string will end till "AB" and the other statements will be invalid.

How am i going to resolve this?
Is there any other special characters which will caused this problem?

Pls help!
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Question by:edonasan
3 Comments
 
LVL 43

Accepted Solution

by:
TimCottee earned 100 total points
ID: 6231066
You just need to double the ' character:

MyString = "AB'C"
rst.Open "Select * From Table Where Field = '" & Replace(MyString,"'","''") & "'",ConnStr,adOpenStatic,adLockReadOnly

0
 
LVL 51

Expert Comment

by:Ryan Chong
ID: 6231123
Hi edonasan, TimCottee is correct.

Here is an alternative sample , use it as you use VB6 lower:

______________________________________________

Private Function Convert(ByVal Keyword As String) As String
   EmptyM = Keyword
   Do While InStr(EmptyM, "'") <> 0
       i = InStr(EmptyM, "'")
       EmptyM = Right$(Keyword, Len(Keyword) - i)
       Keyword = Left(Keyword, i) & "'" & EmptyM
   Loop
   Convert = Keyword
End Function

Use like this:
MyString = "AB'C"
rst.Open "Select * From Table Where Field = '" & Convert(MyString) & "'",ConnStr,adOpenStatic,adLockReadOnly
0
 

Author Comment

by:edonasan
ID: 6231138
yes!
thanks TimCotte!

Thanks ryancys too, i hope to allocate some points to u too.. thanks again :)
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