This could occur IF MSO_OR_INDEPENDENT_ID is really a VARCHAR2. The implicit conversion [ TO_NUMBER(mso_or_independent_id) ] invalidates the use of the index!
"Jamadagni, Rajendra" wrote: > > This is from my user .... I can't figure why Oracle is not using the index > even with a hint. Optimizer mode is RULE. BTW the query always returns NULL > value. > > I'm running a simple query. It's taking too long. Ran an explain plan on it > and it's doing a full table scan for some reason. I've tried every data base > thinking there was an index missing or something. I did /*+ first_rows */ > as well with no success. Any ideas ? Any suggestions would be appreciated > !!!!!! > > select mso_or_independent_id > from billing_file_summary > where = 0104167; > > INDEXES ON THE TABLE > INDEX_NAME INDEX_TYPE TABLE_NAME > TABLE UNIQUENES > ------------------------------ --------------------------- > ------------------------------ ----- --------- > BFD_PARENT_INV_IDX NORMAL > BILLING_FILE_SUMMARY TABLE NONUNIQUE > BFS_BILL_TO_ID_IDX NORMAL > BILLING_FILE_SUMMARY TABLE NONUNIQUE > BFS_MSO_IND_IDX NORMAL > BILLING_FILE_SUMMARY TABLE NONUNIQUE > BFS_ORG_IDX NORMAL > BILLING_FILE_SUMMARY TABLE NONUNIQUE > BFS_PRINTED_INV_IDX NORMAL > BILLING_FILE_SUMMARY TABLE NONUNIQUE > BFS_YEAR_MONTH_IDX NORMAL > BILLING_FILE_SUMMARY TABLE NONUNIQUE > PK_BILLING_FILE_SUMMARY NORMAL > BILLING_FILE_SUMMARY TABLE UNIQUE > > Explain shows a full table scan > TO_CHAR(TIMESTAM OBJECT_NAME OPERATION > OPTIONS > ---------------- ------------------------------ > ------------------------------ --------------------- > 11202001 01:42pm BILLING_FILE_SUMMARY TABLE ACCESS > FULL > 11202001 01:42pm SELECT > STATEMENT > > TIA > Raj > ______________________________________________________ > Rajendra Jamadagni MIS, ESPN Inc. > Rajendra dot Jamadagni at ESPN dot com > Any opinion expressed here is personal and doesn't reflect that of ESPN Inc. > > QOTD: Any clod can have facts, but having an opinion is an art! > > >----------------------------------------------------------------------------------------------------------------------------------- > Name: ESPN_Disclaimer.txt > ESPN_Disclaimer.txt Type: Plain Text (text/plain) > Encoding: 7bit -- Charlie Mengler Maintenance Warehouse [EMAIL PROTECTED] 10641 Scripps Summit Ct. 858-831-2229 San Diego, CA 92131 Extraordinary DBA - Design on the Fly & Just In Time Programming -- 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).
