RE: sql optimization question

2003-08-28 Thread Guang Mei
Dave: Thanks! That works great. Guang -Original Message- Dave Hau Sent: Wednesday, August 27, 2003 4:29 PM To: Multiple recipients of list ORACLE-L select distinct n.cognateid, m.isirefid,4, linkdate from mt.externallink l, refidmatch m, nametag n where l.objectid = n.geneid and

Re: sql optimization question

2003-08-27 Thread Dave Hau
select distinct n.cognateid, m.isirefid,4, linkdate from mt.externallink l, refidmatch m, nametag n where l.objectid = n.geneid and m.pubmedid = l.identifier and externaldbid = 9 and l.identifier in (select identifier from mt.externallink where externaldbid = 9 group by identifier having