RE: BITAND function???

From: Thomas L. Harleman <tharleman_at_iquest.net>
Date: Thu, 3 Aug 2000 15:46:10 -0500
Message-Id: <10578.113794@fatcity.com>

I've never used it. But having worked in C and Forth, I'd say it is ANDing the bits between i.property and the number 4. The bits for the number 4 are 0100. The bit values are 8,4,2,1. BITAND would compare the 3rd bit. If the third bit is set, then the function would return TRUE. If the 3rd bit is not set then the function would return FALSE. Therefore, in a 4 bid number only 4, 5, 6, 7, 12, 13, etc. would qualify.

Tom Harleman
11080 Willowmere Dr.
Indianapolis, IN 46280
317-844-2884 Home
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-----Original Message-----
From: root_at_fatcity.com [mailto:root_at_fatcity.com]On Behalf Of Sandeep Kurliye
Sent: Thursday, August 03, 2000 1:16 PM
To: Multiple recipients of list ORACLE-L Subject: BITAND function???

Hi,

Any idea, what BITAND function does?

Following is a query which is used to list the names of all reverse key indexes:

SVRMGR> SELECT o.object_name

2> FROM dba_objects o
3> WHERE owner='SCOTT'
4> AND o.object_id IN (SELECT i.obj#
5> FROM ind$ i
6> WHERE BITAND(i.property,4) = 4);

OBJECT_NAME

ORD_ORD_NO_IDX
1 row selected.

TIA, Sandeep.
Riyadh, Saudi Arabia.

--
Author: Sandeep Kurliye
  INET: Sandeep.Kurliye_at_almarai.com

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Received on Thu Aug 03 2000 - 15:46:10 CDT