Den 2013-01-19 08:27 skrev Gary Benade såhär: > On 1/18/2013 2:48 PM, Kjell Rilbe wrote: >> Den 2013-01-18 13:30 skrev Gary Benade såhär: >>> On 1/18/2013 2:02 PM, Kjell Rilbe wrote: >>>> Den 2013-01-18 12:56 skrev Kjell Rilbe såhär: >>>>> Hi, >>>>> >>>>> This SQL returns 2533 records, none of which contain B."Kod" starting >>>>> with 1711 or 2111 (checked thoroughly): >>>>> select B.* >>>>> from "Branschkod" B >>>>> inner join "Branschkod" B2 on B2."Namn" = B."Namn" >>>>> where B."ECO_ID" <> B2."ECO_ID" >>>>> >>>>> Now, I add a line to the WHERE: >>>>> select B.* >>>>> from "Branschkod" B >>>>> inner join "Branschkod" B2 on B2."Namn" = B."Namn" >>>>> where B."ECO_ID" <> B2."ECO_ID" >>>>> and B."Kod" in ('17111', '17112', '17113', '21111', '21112', '21113') >>>>> >>>>> This select DOES return six records, containing B."Kod" starting with >>>>> 1711 or 2111 (one for each code in the list). >>>>> >>>>> How can this happen? >>>>> >>>> Note: I tried inserting the results of the first query into a new table. >>>> Then I did >>>> >>>> select * >>>> from newtable >>>> where "Kod" in ('17111', '17112', '17113', '21111', '21112', '21113') >>>> >>>> It did not return any records. Still the second select does return six >>>> records. >>>> >>>> Kjell >>> I have a feeling it my be related to nulls in ECO_ID, what do you get >>> when you run the following query? >>> >>> select B.* >>> from "Branschkod" B >>> inner join "Branschkod" B2 on B2."Namn" = B."Namn" >>> where coalesce(B."ECO_ID",'') <> coalesce(B2."ECO_ID",'') >> No nulls in ECO_ID - it's a pk. Your query returns the same 2533 records >> as the first SQL above. > What does this return? > > select * from > { > select B.* > from "Branschkod" B > inner join "Branschkod" B2 on B2."Namn" = B."Namn" > where B."ECO_ID" <> B2."ECO_ID" > ) bb > where bb."Kod" in ('17111', '17112', '17113', '21111', '21112', '21113')
That query returns the same six rows as the one with the "in list" directly in the innner query. I had already tried that approach, actually. Regards, Kjell -- -------------------------------------- Kjell Rilbe DataDIA AB E-post: kj...@datadia.se Telefon: 08-761 06 55 Mobil: 0733-44 24 64 ------------------------------------ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Visit http://www.firebirdsql.org and click the Resources item on the main (top) menu. Try Knowledgebase and FAQ links ! Also search the knowledgebases at http://www.ibphoenix.com ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/firebird-support/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/firebird-support/join (Yahoo! ID required) <*> To change settings via email: firebird-support-dig...@yahoogroups.com firebird-support-fullfeatu...@yahoogroups.com <*> To unsubscribe from this group, send an email to: firebird-support-unsubscr...@yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/