I have strange issue with nested left-joins in postgresql... It\'s hard to explain, but easy to show =) here we are:
I want to use a where statement on a value from a joined table. Can\'t figure it out: SELECT item.*, count(articles.authorid) AS articlecount
I am trying to optimise my site and would be grateful for some help. The site is a mobile phone comparison site and the query is to show the offers for开发者_高级运维 a particular phone. The data is
I\'ve got a weird question. I have a user table where each user has a unique user id. Users are able to post comments (tips) which are saved to a different table, each comment row also has a unique ID
I have five mysql tables. shops +----+--------------+--------------+ id | name| address| +----+--------------+--------------+
I have an issue with joining of tables that I have not managed to solve. Somehow I have the impression that it is more simple than I think. Anyhow:
I have tables queue and requests. queue\'s reqID is a foreign key to requests\' reqID. both tables have vanID
I have the following tables: users id | name info id | info | user_id (user_id from table info is foreign key => connects to id from table users)
Here\'s a simplified version of the structure (left out some regular varchar cols)开发者_开发百科:
I have around 30 tables. eg: producer, director etc related to movies each table consists of movie_id and celeb_id field
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