I have a function that accepts one parameter and returns a table/resultset. I want to set a field in a table to the first result of that recordset, passing in one of the table\'s other fields as the p
HI i want to get the value of the variabl开发者_JS百科e from the main query inside the sub query
I have a simple, uncorrelated subquery that performs ve开发者_如何学编程ry poorly on SQL Server. I\'m not very experienced at reading execution plans, but it looks like the inner query is being execut
I have the following huge query that contains repeated subqueries , It looks really inefficient to me. How can i optimize it ?
This is my first time posting on Stack Overflow but have already found it to be an invaluable resource.
I\'ve been doing some work evaluating NHibernate for an upcoming project and am working through some use cases to see how it performs. I haven\'t yet been able to find a way to express the following q
I have a table cats with 42,795,120 rows. Apparently this is a lot of rows.So when I do: /* owner_cats is a many-to-many join table */
I\'m in the process of normalizing a few tables and I\'ve a开发者_JAVA技巧dded a surrogate primary key to a table called Exams which holds exam titles.
This is a contrived example using SQL Server 2008. I\'m essentially storing a list of ids in an xml column in a table:
Please explain. a) \"subquery factoring\" is used to replace a non-correlated subquery. What about correlated subquery? Is there any way to move a correlated sub-query to \'WITH\' clause section?
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