Re: [SQL] How To Use JOIN?
От | Oliver Elphick |
---|---|
Тема | Re: [SQL] How To Use JOIN? |
Дата | |
Msg-id | 199811171743.RAA22165@linda.lfix.co.uk обсуждение исходный текст |
Ответ на | How To Use JOIN? (Takashi Tokunaga <taka-tok@chaos.digital-magic.co.jp>) |
Список | pgsql-sql |
Takashi Tokunaga wrote: >Hello PGSQL users, I'm having trobule using join statement: >3. Now after that worked without any problem, so I now create SELECT > statement: > > select * from test1 test2 where code_1 = test.code_2 \g > ERROR: attribute 'code_2' not found > >nope that didn't work > > select test1.name_1 from test1 test2 where test1.code_1 = test2.code_2 \g > ERROR: attribute 'code_2' not found > >Umm... still no change. junk=> select * from test1, test2 where code_1 = test2.code_2 junk-> ; name_1|code_1|name_2|code_2 ------+------+------+------ 10| 1| 11| 1 11| 2| 11| 2 (2 rows) junk=> select test1.name_1 from test1, test2 where test1.code_1 = test2.code_2 ; name_1 ------ 10 11 (2 rows) You omitted the comma between the table names in the FROM clause. -- Oliver Elphick Oliver.Elphick@lfix.co.uk Isle of Wight http://www.lfix.co.uk/oliver PGP key from public servers; key ID 32B8FAA1 ======================================== "For by grace are ye saved through faith; and that not of yourselves. It is the gift of God; not of works, lest any man should boast." Ephesians 2:8,9
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