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Published on 2010-06-08T02:40:13Z
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2010/06/08
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Hello,
Is there a way to compare a list of numbers to a SQL subquery
something like WHERE 9,10,11 = (SELECT tableID FROM ....)
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Concatenating string is one of the most common tasks in SQL Server and every developer has to come across it. We have to concat the string when we have to see the display full name of the person by first name and last name. In this video we will see various methods to concatenate the strings. SQL…
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I am trying to install SQL Server on Windows 2012. I was able to finally get the wizard up and running after making some changes on the server, but now it fails no matter what I do with the following error:
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I need to detect which version of SQL I am dealing with to perorm various tasks, I need specifically detect if I am on SQL 2008 or SQL Azure.
How can I do this with detection code written in SQL?
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Here is the query:
INSERT INTO @TempTable
SELECT UserID,
Name,
Address1 =
(SELECT TOP 1 [Address] FROM
(SELECT TOP 1 [Address] FROM [UserAddress] ua INNER JOIN UserAddressOrder uo ON ua.UserID = uo.UserID WHERE ua.UserID = u.UserID
ORDER BY uo.AddressOrder ASC) q
ORDER BY AddressOrder…
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Hi,
Please explain.
a) is "subquery factoring" used to replace a non-correlated subquery? What about correlated subquery?
b) if it is true, are "subquery" and "subquery factoring" executed exactly once?
c) "subquery" vs "subquery factoring" which one is better
Thank you.
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Hey:
I am trying to write a query that will return all orders that only have a Subscription included. It is easy enough to write a query that includes all Orders with Subscriptions, another that includes all orders without a Subscription and then compare them with an unmatched query.
But I don't…
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i want to know, how to write subquery in between SELECT and FROM as
SELECT Col_Name,(Subquery)
From Table_Name
Where Some_condition
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Hello, I'm having some problems trying to perform a query. I have two tables, one with elements information, and another one with records related with the elements of the first table. The idea is to get in the same row the element information plus several records information.
Structure could be explain…
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Originally posted on: http://geekswithblogs.net/NibblesAndBits/archive/2013/10/16/performance-considerations-for-common-sql-queries.aspxSQL offers many different methods to produce the same results. There is a never-ending debate between SQL developers as to the “best way” or the “most efficient…
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