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Thread: Very complicated SELECT query
Jan 26, 2010, 13:01 #1
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Very complicated SELECT query
I need to do very complicated SQL query from database. I'm using MS SQL database. I added pdf with my ERD model.
I need to select different columns from many different tables.
It's a cadastre database for storing cadastre data. Like there's a house with apartments and each apartment has owner, sometimes more than one. I need to query the persons, their ID-s, apartment no., address, city and so on...
I've tried to query it like
SELECT (i.eesnimi + ' ' + i.perenimi_firma) AS nimi, ik.isikukood, ri.yldpind, ri.number, a.aadress_haldusyksus, a.aadress_tanav FROM KINNISTU_DETAIL AS kd INNER JOIN JAGU AS j ON j.kinnistu_detail_id = kd.kinnistu_detail_id INNER JOIN OMAND AS o ON o.jagu_id = j.jagu_id INNER JOIN ISIK AS i ON i.omand_id = o.omand_id INNER JOIN ISIKUKOOD AS ik ON ik.isik_id = i.isik_id INNER JOIN KATASTRIYKSUS AS ky ON ky.jagu_id = j.jagu_id INNER JOIN REAALOSA_INFO AS ri ON ri.katastriyksus_id = ky.katastriyksus_id INNER JOIN AADRESS AS a ON a.katastriyksus_id = ky.katastriyksus_id WHERE j.kehtivus = 'kehtiv' AND kd.uus_nr = '8958201'
It works until INNER JOIN ISIKUKOOD, if I insert INNER JOIN KATASTRIYKSUS then it don't return any rows.
I'm not very good in English, maybe you understand what I need to do.
Also all tables are filled, so the problem is not in the empty tables in my test database.I'd change the world but God won't give me the source code...