I have a table storing transactional data for users. To find a users rating you take the average score of the last 10 entries for that user. Is there a way to get that with SQL?
I\'d like to only select the rows where开发者_JAVA百科 the count is greater than 1 (in other words the duplicates) right now from a few thousand records I am mostly seeing 1s with a few 2s and 3s here
I need to get maximum andminimum values but also I need to get row id of these maximum or minimum on the same row.
How do you return the max value of several columns (date and cost relationship)? TableName [ID, Date1, Cost1, Date2, Cost2, Date3, Cost3]
I hope I\'m asking this in the right way. I\'m learning my way around Elastic MapReduce and I\'ve seen numerous references to the \"Aggregate\" reducer that can be used with \"Streaming\" job flows.
I have a very simple grouping and aggregation problem in LINQ to SQL that I just 开发者_如何转开发can\'t figure out, and it is driving me mad.
Given a datatable, I wish to output an IEnu开发者_Python百科merable type (dictionary(of T) would be perfect, otherwise a datatable would be acceptable) that provides an aggregation of the data within
DUPLICATE: Using a Django custom model method property in order_by() I have two models;one that stores posts and another that stores votes made on those posts, related using a ForeignKey field.Each v
This is another stab into a problem I posted here. Please don\'t close as duplicate, because it goes in another direction.
I\'d like to create a blog similar in style to http://tastespotting.com where the site aggregates content from other blogs and displays them in a thumbnail post which on clicking goes to the specific
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