Solved

Problem with   LIKE operator

Posted on 1998-03-09
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Last Modified: 2006-11-17
HI,

i want to search wild characters along with the combination of other characters. how do i do that using LIKE operator. i am using Access 7.0. Ex : if the value of the field in the table is having values as, Hello and ?Hello. I want to search the string "?Hello" only. I tried thhis LIKE statement.
SELECT *
FROM <Table>
WHERE<Field> = "bc"
AND <Field1>  LIKE (chr(63) &"*Hello*");
 But this retrieves both the records  with "Hello" and "?Hello".
Similarly i want to use other wild characters(overriding their default meaning). Any suggestions.?

Thanks,
ysgr
0
Comment
Question by:ysgr
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9 Comments
 
LVL 27

Expert Comment

by:aburr
ID: 1970339
Leave the * out of "*hello*"
0
 

Author Comment

by:ysgr
ID: 1970340
Hi aburr,

i tried removing * in the LIKE statement, which retrieves zero records.
Any other solution?

Thanks,
ysgr
0
 
LVL 12

Accepted Solution

by:
Trygve earned 20 total points
ID: 1970341
Try this SQL:  SELECT [Hello Table].SomeID, [Hello Table].Description
FROM [Hello Table]
WHERE ((([Hello Table].SomeID)=Chr(63) & "Hello"));

Hope this helps !
Trygve
0
 

Expert Comment

by:johnsen
ID: 1970342
The special characters left bracket ([), question mark (?), number sign (#), and asterisk (*) can be used to match themselves directly only by enclosing them in brackets.  The right bracket (]) can't be used within a group to match itself, but it can be used outside a group as an individual character.

Try this SQL:

SELECT *
FROM TEST
WHERE (((TEST.Field1) Like '*[?]Hello*'));

I think this helps!
Johnsen
0
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Expert Comment

by:Skor
ID: 1970343
I tested Like "[?]Hello" as criteria and only got "?Hello", I did not get "*Hello" or "Hello".

--Skor
0
 
LVL 12

Expert Comment

by:Trygve
ID: 1970344
My proposed answer also gives you the correct records, as far as I can see. But of course the "bracket solution" is more visual and perhaps easier to understand.
0
 

Expert Comment

by:johnsen
ID: 1970345
OKIDO... Trygve
0
 

Author Comment

by:ysgr
ID: 1970346
IT works for wild-characters, still i have problems for chracter |(OR operator).

Thanks,
ysgr
0
 
LVL 12

Expert Comment

by:Trygve
ID: 1970347
The vertical bar | can't be tested for using the bracket solution. You will have to do something like this:

SELECT [Special Characters].TestField, [Special Characters].Description
FROM [Special Characters]
WHERE ((([Special Characters].TestField)=Chr(124) & "Hello"));

Hope this helps !
Trygve
0

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