Problem with joining char field to varchar2 field
- From: "Warren Homer" <wazhomer@xxxxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Wed, 05 May 2004 10:50:49 +1000
Hi all,
we are currently running Oracle 9.2.0.1.0 on AIX 4.3.
I am trying to join two tables on a varchar2(50) field and a CHAR(30) field
where both are defined as NOT NULL. Although these two fields have the same
value inserted Oracle interprets these two columns to be NOT equal. I have
tried the same SQL test on a Window 2000 Oracle 9.2.0.3.0 environment
without any problems. Is this a bug in Oracle 9201 or a problem with AIX ?
Thanks in advance for any help.
The following shows the process I have used to create the problem.
CREATE TABLE PTMBT01
(COL1_ID NUMBER(10) NOT NULL
, COL2 CHAR(30) NOT NULL
)
TABLESPACE PSMBT01_00
PCTFREE 5
PCTUSED 75;
CREATE TABLE PTMBT02
(COL1_ID NUMBER(10) NOT NULL
, COL2 VARCHAR2(50) NOT NULL
)
TABLESPACE PSMBT02_00
PCTFREE 5
PCTUSED 75;
INSERT INTO PTMBT01 VALUES(1,'111');
INSERT INTO PTMBT01 VALUES(2,'123');
INSERT INTO PTMBT02 VALUES(1,'123');
INSERT INTO PTMBT02 VALUES(2,'123');
the following SQL returns NO rows. However, it does return two rows (as
expected) when run in the Windows 2000 Oracle 9.2.0.3.0 environment.
SELECT *
FROM PTMBT01 T01
, PTMBT02 T02
WHERE T01.COL2 = T02.COL2;
Thanks in advance,
Warren.
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