----- Original Message -----
Sent: Wednesday, September 04, 2002 12:43
PM
Subject: Coercion issue
Hi
all,
I'm
writing a package to manipulate a partitioned table for the
duhvelopers and have run into
a
weird query that I can't figure out. I can convert a substring to a
number in a select clause,
but
as soon as I try to use that same number in the where clause, the thing
chokes. Has
anyone else seen anything like
this?
I'm
on 9.0.1.3, Solaris 8. The buy_price_pkg.cnv_bpt_to_bp_id in the
query is a custom
function that returns a number corresponding with
which partition is current, old, next,
etc.
SQL> SELECT
to_number(substr(partition_name,5,2)),
buy_price_pkg.cnv_bpt_to_bp_id(5)
2 FROM
all_tab_partitions
3 WHERE table_name =
'BUY_PRICE_PIECE_TYPE_HISTORY'
4* and partition_name !=
'TYPE01'
SQL> /
TO_NUMBER(SUBSTR(PARTITION_NAME,5,2))
BUY_PRICE_PKG.CNV_BPT_TO_BP_ID(5)
-------------------------------------
---------------------------------
9
9
10
9
11
9
12
9
SQL> SELECT
to_number(substr(partition_name,5,2)),
buy_price_pkg.cnv_bpt_to_bp_id(5)
2 FROM
all_tab_partitions
3 WHERE table_name =
'BUY_PRICE_PIECE_TYPE_HISTORY'
4 and partition_name !=
'TYPE01'
5* and
to_number(substr(partition_name,5,2)) =
buy_price_pkg.cnv_bpt_to_bp_id(5)
SQL>
/
and to_number(substr(partition_name,5,2))
=
buy_price_pkg.cnv_bpt_to_bp_id(5)
*
ERROR at line 5:
ORA-01722: invalid number
TIA,
John P Weatherman
Database Administrator
Replacements Ltd.
