I\'ve been puzzling over how to structure a special query, and the best I can figure out is that it would have to be some kind of complex subquery system.
Select rating_id, average_rating From (Select rating_id, avg(rating_num) as average_rating from ratings
I am currently creating a feature like \'other people who liked this also like\'. The HQL statement in question returns a list of product ids (ordered by count of shared \'likes\' between two product
Is it possible to omit an aggregate column in a query?As an example: SELECT Id, Descri开发者_StackOverflow中文版ption, MAX(Created)
whats the difference between.. select a.value1 from apple a, banana b, oranges o where a.value1 = b.value1 and o.value1 = a.value1 and o.value2 = \'oranges\';
Is there any way in Oracle within an SQL query to reference a column from within a subquery that is outside of it, or to achieve that effect even if via a different means? Everything I\'ve read on the
Just can\'t wrap my head around the proper syntax for this one.Below is my query, with a plain english explanation of my subquery, in the spot where I think I\'d want it to execute.
Obviously the query in the title does not work, but it might illustrate in a naive way, what I would like to do. I have a table that contains some users identified by an id column. This id is NOT uniq
I\'m trying to speed up some code that I wrote years ago for my employer\'s purchase authorization app.Basically I have a SLOW subquery that I\'d like to replace with a JOIN (if it\'s faster).
I have a stored procedure in SQL Server 2005. It returns three variables in one single line, like this (extremely simplified) example:
加载中,请稍侯......