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What is the use of GO in SQL Server Management Studio & Transact SQL?
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It is a batch terminator, you can however change it to whatever you want
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Difference between “read commited” and “repeatable read”
...nk the above isolation levels are so alike. Could someone please describe with some nice examples what the main difference is ?
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Map vs Object in JavaScript
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According to mozilla:
A Map object can iterate its elements in insertion order - a for..of loop will return an array of [key, value] for each iteration.
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Objects are similar to Maps in that both let you set keys to values,
retrieve those values, delete ...
When to use lambda, when to use Proc.new?
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Another important but subtle difference between procs created with lambda and procs created with Proc.new is how they handle the return statement:
In a lambda-created proc, the return statement returns only from the proc itself
In a Proc.new-created proc, the return statement is a litt...
RESTful call in Java
...you are calling a RESTful service from a Service Provider (e.g Facebook, Twitter), you can do it with any flavour of your choice:
If you don't want to use external libraries, you can use java.net.HttpURLConnection or javax.net.ssl.HttpsURLConnection (for SSL), but that is call encapsulated in a Fac...
Is it possible to use Visual Studio on macOS?
...w Visual Studio for Mac, which Microsoft launched in November.
Read about it here: https://msdn.microsoft.com/magazine/mt790182
Download a preview version here: https://www.visualstudio.com/vs/visual-studio-mac/
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CSS horizontal centering of a fixed div?
...t a div, which should be fixed on the screen, even if the page is scrolled it should always stay CENTERED in the middle of the screen!
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Fatal Error: Allowed Memory Size of 134217728 Bytes Exhausted (CodeIgniter + XML-RPC)
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Changing the memory_limit by ini_set('memory_limit', '-1'); is not a proper solution. Please don't do that.
Your PHP code may have a memory leak somewhere and you are telling the server to just use all the memory that it wants. You wouldn't have f...
Default text which won't be shown in drop-down list
I have a select which initially shows Select language until the user selects a language. When the user opens the select, I don't want it to show a Select language option, because it's not an actual option.
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Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
This is an interview question from google. I am not able to solve it by myself. Can somebody shed some light?
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