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SQL Server insert if not exists best practice

...sert Competitors where doesn't already exist": INSERT Competitors (cName) SELECT DISTINCT Name FROM CompResults cr WHERE NOT EXISTS (SELECT * FROM Competitors c WHERE cr.Name = c.cName) share | ...
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How do I get my solution in Visual Studio back online in TFS?

...t-click on the solution name right at the top of the Solution Explorer and select the Go Online option. Clicking this allowed me to select the files that had been changed when I was offline and make the solution online again. After finding the solution, I found the following msdn forum thread which...
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What's a quick way to comment/uncomment lines in Vim?

... For those tasks I use most of the time block selection. Put your cursor on the first # character, press CtrlV (or CtrlQ for gVim), and go down until the last commented line and press x, that will delete all the # characters vertically. For commenting a block of text i...
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Adding a library/JAR to an Eclipse Android project

...w application project. When you are creating the library project, you can select any application name, package, and set other fields as needed, as shown in figure 1. Next, set the project's properties to indicate that it is a library project: In the Package Explorer, right-click the library proje...
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getting type T from IEnumerable

... t.GetGenericTypeDefinition() == typeof(IEnumerable<>)) .Select(t => t.GetGenericArguments()[0]); } Some objects implement more than one generic IEnumerable so it is necessary to return an enumeration of them. Edit: Although, I have to say, it's a terrible idea for a class to...
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Jump to matching XML tags in Vim

...n do this without additional plugins: place cursor on the tag vat - will select the (outer) tag and place cursor on the end once you've got your selection you can toggle between the top and bottom with o (update based on Michael Gruber's note) c - change or, y - copy or, escape for leaving visual ...
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“Wrap with try…catch” in IntelliJ?

Can I select a block of code and have IntelliJ wrap it with a "try...catch" ? 9 Answers ...
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Oracle SQL escape character (for a '&')

... table blah (x varchar(20)); insert into blah (x) values ('blah&amp'); select * from blah; X -------------------- blah&amp share | improve this answer | ...
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Linq with group by having count

... from c in db.Company group c by c.Name into grp where grp.Count() > 1 select grp.Key Or, using the method syntax: Company .GroupBy(c => c.Name) .Where(grp => grp.Count() > 1) .Select(grp => grp.Key); ...
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How to copy text from Emacs to another application on Linux

...Emacs paste and Emacs copy work with system paste, you need to add (setq x-select-enable-clipboard t) to your .emacs. Or try META-X set-variable RET x-select-enable-clipboard RET t I think this is pretty standard modern Unix behavior. It's also important to note (though you say you're using Em...