Re: Group by within table joins
От | Josh Berkus |
---|---|
Тема | Re: Group by within table joins |
Дата | |
Msg-id | 39C00B85.89CC1F7B@agliodbs.com обсуждение исходный текст |
Ответ на | Group by within table joins (Bernie Huang <bernie.huang@ec.gc.ca>) |
Список | pgsql-sql |
Mr. Huang, Seems to me that your GROUP BY line should read: GROUP BY ltb.v_id, vtb.equip_attr[1], vtb.equip_attr[3], vtb.equip_attr[4] Or am I missing the point? -Josh > SELECT ltb.v_id, > count(ltb.v_id) AS num_of_times_borrowed, > vtb.equip_attr[1] AS year, > vtb.equip_attr[3] AS model, > vtb.equip_attr[4] AS type > FROM log_tb ltb, vehicle_tb vtb > WHERE ltb.v_id=vtb.equip_id > GROUP BY ltb.v_id > ORDER BY year; -- ______AGLIO DATABASE SOLUTIONS___________________________ Josh Berkus Complete informationtechnology josh@agliodbs.com and data management solutions (415) 436-9166 for law firms, small businesses fax 436-0137 and non-profit organizations. pager 338-4078 San Francisco
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