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Return Boolean Value on SQL Select Statement

How to return a boolean value on SQL Select Statement? 9 Answers 9 ...
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MySQL: determine which database is selected?

After calling mysql_select_db to grab a database, is there any way to later output the name of the database that is currently selected? This seems very basic but I couldn't find anything on php.net or stackoverflow (all results are for "no database selected"). ...
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SQL Server Insert if not exists

..., Assunto, Data) VALUES (@_DE, @_ASSUNTO, @_DATA) WHERE NOT EXISTS ( SELECT * FROM EmailsRecebidos WHERE De = @_DE AND Assunto = @_ASSUNTO AND Data = @_DATA); END replace with BEGIN IF NOT EXISTS (SELECT * FROM EmailsRecebidos ...
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SQL Server CTE and recursion example

...The query finds all root nodes as described by WHERE ManagerID IS NULL SELECT EmployeeID, FirstName, LastName, ManagerID, 1 FROM Employees WHERE ManagerID IS NULL -->>>>>>>>>>Block 1>>>>>>>>>>>>>>>>> UNI...
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jquery get all form elements: input, textarea & select

Is there an easy way (without listing them all separately) in jquery to select all form elements and only form elements. 12...
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Preventing an image from being draggable or selectable without using JS

Does anyone know of a way to make an image not draggable and not selectable -- at the same time -- in Firefox, without resorting to Javascript? Seems trivial, but here's the issue: ...
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Disabling user selection in UIWebView

...use I want the user to be able to click links. I just need to disable user selection. I found somewhere in the Internets that you can use: ...
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How to set timeout on python's socket recv method?

... The typical approach is to use select() to wait until data is available or until the timeout occurs. Only call recv() when data is actually available. To be safe, we also set the socket to non-blocking mode to guarantee that recv() will never block indef...
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SQL Server SELECT INTO @variable?

... You cannot SELECT .. INTO .. a TABLE VARIABLE. The best you can do is create it first, then insert into it. Your 2nd snippet has to be DECLARE @TempCustomer TABLE ( CustomerId uniqueidentifier, FirstName nvarchar(100), LastNa...
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UITableViewCell subview disappears when cell is selected

I'm implementing a color-chooser table view where the user can select amongst, say, 10 colors (depends on the product). The user can also select other options (like hard drive capacity, ...). ...