Greetings, Here is the scenario.
We are trying to insert records into a remote table via database link after selecting the data locally. This query hangs for ever: -------------------------- INSERT INTO [EMAIL PROTECTED] SELECT * FROM FW.FWLOT_PN2M WHERE FW.FWLOT_PN2M.fromid = (select fw.fwlot.sysid from fw.fwlot where fw.fwlot.appid = '2000005956'); select fw.fwlot.sysid from fw.fwlot where fw.fwlot.appid = '2000005956' : This query returns only one row. SELECT * FROM FW.FWLOT_PN2M WHERE FW.FWLOT_PN2M.fromid = (.....) : This select returns 15 rows. If I replace the subquery as follows then it works great : ---------------------------------------------------------- INSERT INTO [EMAIL PROTECTED] SELECT * FROM FWLOT_PN2M WHERE fromid = '00000e31.900fb406.37bc1803.00003074.2026'; I tried to do the same insert locally and it works great : --------------------------------------------------------------- INSERT INTO fwlot_pn2m_gene SELECT * FROM FW.FWLOT_PN2M WHERE FW.FWLOT_PN2M.fromid = (select fw.fwlot.sysid from fw.fwlot where fw.fwlot.appid = '2000005956'); For some reason the combination of database link and the subquery in the select clause is going for full table scan for each occurence of formid. I am wondering if this is a bug or something against the rule. WHERE FW.FWLOT_PN2M.fromid = (select fw.fwlot.sysid from fw.fwlot where fw.fwlot.appid = '2000005956'); Any explanation or help is appreciated. Thanks, Ashoke -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Mandal, Ashoke 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).
