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SQL Server insert if not exists best practice

... Semantically you are asking "insert 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...
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What is the difference between “Flush Magento Cache” and “Flush Cache Storage” in magento's cache ma

...s everything but might affect other applications if they're using it. Normally the location is var/cache/ in Magento's folder so is not shared after all. It is safe to use either button. Sometimes (rarely) entries are not clearly tagged or Magento loses track of them and only the second button has ...
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How to Empty Caches and Clean All Targets Xcode 4 and later

...st here: Xcode Includes .xib files that have been deleted! that cleaning all targets and empty the caches will fix the problem with Xcode including deleted .xib files but I cannot find a way to empty the cache in Xcode 4. ...
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Why should I prefer single 'await Task.WhenAll' over multiple awaits?

...n case I do not care about the order of task completion and just need them all to complete, should I still use await Task.WhenAll instead of multiple await ? e.g, is DoWork2 below a preferred method to DoWork1 (and why?): ...
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How to change the author and committer name and e-mail of multiple commits in Git?

...ch the docs now give this warning: git filter-branch has a plethora of pitfalls that can produce non-obvious manglings of the intended history rewrite (and can leave you with little time to investigate such problems since it has such abysmal performance). These safety and performance issues cannot b...
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Replace words in the body text

... targeting your code using document.getElementById or similar. To replace all instances of the target string, use a simple regular expression with the global flag: document.body.innerHTML = document.body.innerHTML.replace(/hello/g, 'hi'); ...
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Protect .NET code from reverse engineering?

...lt, but ultimately any executable on the local machine is crackable. Eventually, that code has to be converted into native machine code and every application that is runnable is vulnerable. What you want to do is just make it difficult enough to crack to make it not worth peoples' trouble. Some su...
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Printing the value of a variable in SQL Developer

... Make server output on First of all SET SERVEROUTPUT on then Go to the DBMS Output window (View->DBMS Output) then Press Ctrl+N for connecting server share | ...
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How do I list all the columns in a table?

For the various popular database systems, how do you list all the columns in a table? 12 Answers ...
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How do I log ALL exceptions globally for a C# MVC4 WebAPI app?

... API Service Layer for a client and I have been requested to catch and log all errors globally. 5 Answers ...