At 11:41 +0200 10/25/02, Harald Fuchs wrote:
In article <000701c27193$1bf2bfa0$aa3fe7cb@jsheo>,
"Heo, Jungsu" <[EMAIL PROTECTED]> writes:
Hello, every one.
I Found a bug about CASE .. WHEN .. THEN..
mysql> SELECT VERSION() ;
+------------+
| VERSION() |
+------------+
| 4.0.3-beta |
+------------+
1 row in set (0.00 sec)
mysql> select CASE NULL WHEN NULL THEN 0 ELSE 1 END AS RESULT ;
+--------+
| RESULT |
+--------+
| 1 |
+--------+
1 row in set (0.00 sec)
I think RESULT should be '0'. Am I wrong?
IF() works finely.
mysql> SELECT IF( NULL IS NULL, 0 , 1 ) AS RESULT ;
+--------+
| RESULT |
+--------+
| 0 |
+--------+
1 row in set (0.00 sec)
Is this a bug or a mistake of mine?
The latter one. While "NULL IS NULL" returns true, "NULL = anything"
returns false, even if "anything" is NULL.
[Filter fodder: SQL query]
If you're using the CASE to test whether a part
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