On Fri, 16 Nov 2001 10:41:31 +0530, Manish Mehta used a
few recycled electrons to form:
| Hello ,
|
| I have a problem related to not <> or != (not equal to function) .
|
| The SQL Query is
|
| select a.cBook_Name from tbl_bookmaster as a , tbl_empbookrelation as b
| where a.nbook_id != b.nbook_id
|
| It shows me wrong result. It shows me those rows also which are already
| present in other table.
You should use a left join, instead.
SELECT a.cBook_Name
FROM
tbl_bookmaster a LEFT JOIN tbl_empbookrelation b
ON
a.nbook_id = b.nbook_id
WHERE
b.nbook_id IS NULL
This is guessing that you want the records that are in
tbl_bookmaster, but not in tbl_empbookrelation.
HTH,
Michael
-
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