I am using SSMS 2008 and I need to use a subquery to return the count of unique records / client. How do I do this? Currently I am getting the error:
In my project, we use solr to index a lot of different kind of documents, by example Books and Persons, with some common fields (like the name) and some type-specific fields (like the category, or the
I am using SSMS 2008 and I need to use a subquery to return the count of unique records / client.How do I do this?Currently I am returning all unique records over the whole dataset and not per client.
I am new to web programming and I\'m trying to make a twitter-clone.At this point, I have 3 tables: users (id, name)
The first query works just fine. It returns one row from the table \'routepoint\'. It has a certain \'route_id\' and \'geo_distance()\' is on its minimum given the parameters. I know that the 开发者_如
I want to optimize this query (since subqueries aren\'t fast in general), but I\'m lost because I cannot rewrite this using joins which will be better for performance, can you help mi with this?
In my CakePHP I have ModelA which hasMany ModelB. ModelB has an int value Q. Can I query ModelA and use containable to ensure that only those ModelB records with the maximum value for Q?
Referring to the diagram below the records table has unique Records. Each record is updated, via comments through an Update Table. When I join the two I get lots of duplicates.
This is part of a larger statement, but I\'m wondering if CTE o开发者_JS百科r another method would help make this more efficient or cleaner. I could write it as a table-valued function and include it
I have two different tables, products and inventory. Basically, what I\'m trying to accomplish is I need to loop thru every row in my products table and reference the corresponding rows in the invent
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