First, what are you hoping to accomplish by rewriting it? Is there an index on 'COLUMN' that is not being used because of the expression in the WHERE clause? Is there another factor that you are trying to address? ===================================== Jim Silverman Senior Systems Database Administrator Solucient, LLC Telephone: 734-669-7641 FAX: 734-930-7611 E-Mail: jsilverman@xxxxxxxxxxxxx -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of The Human Fly Sent: Tuesday, March 21, 2006 10:10 AM To: oracle-l Subject: tuning query with concat string. Hello list, How can I rewrite the query which uses concatenation in the where clause? For an example, SELECT ...... FROM where COLUMN = 'S'||'VALUE2'; Thanks for your time. -- Best Regards, Syed Jaffar Hussain 8i,9i & 10g, OCP DBA Banque Saudi Fransi, Saudi Arabia http://jaffardba.blogspot.com/ ------------------------------------------------------------------------ ---------- "Winners don't do different things. They do things differently." -- //www.freelists.org/webpage/oracle-l