What about current statistics on both DBs? Is the distribution of the data reasonably the same? Are they both using the same optimizer?
I would state that "obiviously" something is different between the two instances; otherwise you'd get exactly the same results. [EMAIL PROTECTED] wrote: > > Hello: > > I have an identical query that has similar explain plan on both Prod and Dev > environment, only difference being that certain indexes are performing > unique scan on Prod and Range scan on Dev. > Can you cast some light on how this can be matched and under what conditions > this discrepancy might occur. > > Thank you, > > Srini > > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: > INET: [EMAIL PROTECTED] > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California -- Public Internet access / Mailing Lists > -------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). -- Charlie Mengler Maintenance Warehouse [EMAIL PROTECTED] 10641 Scripps Summit Ct. 858-831-2229 San Diego, CA 92131 Lead, follow, or at least have the courtesy to get out of my way! -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Charlie Mengler INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
