Re: SQL join date field with numeric field

At one time I did have an index, but I switched to a view.
WRKOBJ OBJ(ROB/OLDT*)
Object Type Library Attribute
OLDTABLE *FILE ROB PF
OLDTA00001 *FILE ROB LF


DSPDBR FILE(ROB/OLDTABLE)
Files Dependent On Specified File
Dependent File Library
OLDTA00001 ROB

DLTF FILE(ROB/OLDT*)
All 2 objects of type *FILE deleted.

STRSQL
CREATE TABLE ROB/OLDTABLE (OLDDATEASNBR DEC (8 , 0))
CREATE view ROB/oldtablel01 as (
select oldDateASNBR,
DATE(DIGITS(OLDDATEASNBR) CONCAT '000000') as trueDate
from rob/oldtable)
INSERT INTO ROB/OLDTABLE VALUES(20101231)
INSERT INTO ROB/OLDTABLE values(null)
INSERT INTO ROB/OLDTABLE VALUES(20101232)

Hey, you're right!

DELETE FROM ROB/OLDTABLE
CREATE INDEX ROB/oldtablel02
ON ROB/OLDTABLE
(DATE(DIGITS(OLDDATEASNBR) CONCAT '000000') AS OLDDATE)
RCDFMT OLDTL02R ADD ALL COLUMNS
Field File Type
OLDDATEASNBR OLDTABLEL02 DECIMAL
OLDDATE OLDTABLEL02 DATE

INSERT INTO ROB/OLDTABLE VALUES(20101231)
INSERT INTO ROB/OLDTABLE values(null)
INSERT INTO ROB/OLDTABLE VALUES(20101232)
Data conversion or data mapping error.

DLTF FILE(ROB/OLDT*)

Recompiled DDS
R OLDTABLER
OLDDATE 8S 0 ALWNULL
CREATE INDEX ROB/oldtablel02
ON ROB/OLDTABLE
(DATE(DIGITS(OLDDATE) CONCAT '000000') AS TRUEDATE)
RCDFMT OLDTL02R ADD ALL COLUMNS

INSERT INTO ROB/OLDTABLE VALUES(20101231)
INSERT INTO ROB/OLDTABLE values(null)
INSERT INTO ROB/OLDTABLE VALUES(20101232)
Data conversion or data mapping error.
So an index enforces the data type, a view does not. Regardless of DDS or
DDL.

Rob Berendt