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HTML select form with option to enter custom value

...users can enter custom text value or choose from drop down. A regular <select> only offers drop down options. 6 Ans...
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Unioning two tables with different number of columns

... Add extra columns as null for the table having less columns like Select Col1, Col2, Col3, Col4, Col5 from Table1 Union Select Col1, Col2, Col3, Null as Col4, Null as Col5 from Table2 share | ...
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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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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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Updating packages in Emacs

... type package-list-packages, which will take you to the *Packages* buffer (and also update the list of packages), and then type U x. package-refresh-contents unconditionally tries to download a package list from all repos you've added to package-archives; package-archive-contents is non nil if yo...
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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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How to get multiple selected values of select box in php?

I have a html form which has a select list box from which you can select multiple values because its multiple property is set to multiple. Consider form method is 'GET'. The html code for the form is as follows: ...
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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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Difference between DateTime and Time in Ruby

What's the difference between DateTime and Time classes in Ruby and what factors would cause me to choose one or the other? ...
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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: ...