Hi, I got a SQL question (9i on Red Hat), commands
shown below. The first sql returns 3 rows with value
1, so trim(client_company) = '', how come the 2nd sql
doesn't return anything??
SQL> select decode(trim(client_company), '', 1, ' ',
2, null, 3, 4) from cli_clients where
cli_id in (257, 396, 727);
DECODE(TRIM(CLIENT_COMPANY),'',1,'',2,NULL,3,4)
-----------------------------------------------
1
1
1
3 rows selected.
SQL> select count(*) from cli_clients where
trim(client_company) = '' and cli_id in (257,
396, 727);
COUNT(*)
---------
0
1 row selected.
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