Re: Inserting data of two other tables [Now deleting ...]
От | papapep |
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Тема | Re: Inserting data of two other tables [Now deleting ...] |
Дата | |
Msg-id | 3ED4B11E.9000209@gmx.net обсуждение исходный текст |
Ответ на | Re: Inserting data of two other tables [Now deleting ...] (Nabil Sayegh <postgresql@e-trolley.de>) |
Ответы |
Re: Inserting data of two other tables [Now deleting ...]
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Список | pgsql-novice |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I've made a try with this: SELECT count(journey) from DETALLTRAJECTES where EXISTS (SELECT NULL from CAPTRAJECTE,DETALLTRAJECTES where pkey=journey and fecha=20030423); and it doesn't work properly (at least it doesn't do what I need...) In my last mail (this is for Nabil) I made a mistake in what I told you. The date to filter the rows to remove is in CAPTRAJECTES, and the rows to remove are in DETALLTRAJECTES. CAPTRAJECTES has a field called "pkey" and DETALLTRAJECTES another called "journey" that are the join between the two tables. When I execute the select above noted it returns me about 15.000 rows. But if I make this one: SELECT count(journey) from CAPTRAJECTES,DETALLTRAJECTES where pkey=journey and fecha=20030423; it only returns me about 5.000. So the first one has any error in the conception. Where do I make the mistake? (thanks you all for your patience.....) Josep Sànchez ~ [papapep] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQE+1LEd2vx52x0kyz4RAqk0AKDOo3ZoYTYKC5Pcfgov90+CLydxCwCfVgXM RF+NLu0hs6iyR+QKGkjCbzk= =wOrJ -----END PGP SIGNATURE-----
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