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INNER JOIN vs LEFT JOIN performance in SQL Server
...NNER JOIN to LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got significantly improved.
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Is there any difference between GROUP BY and DISTINCT
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MusiGenesis' response is functionally the correct one with regard to your question as stated; the SQL Server is smart enough to realize that if you are using "Group By" and not using any aggregate functions, then what you actually mean is "Distinct" - and therefore it generates a...
How can prepared statements protect from SQL injection attacks?
...in the mixing of the code and the data.
In fact, our SQL query is a legitimate program.
And we are creating such a program dynamically, adding some data on the fly. Thus, the data may interfere with the program code and even alter it, as every SQL injection example shows it (all examples in PHP...
Why is there no SortedList in Java?
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List iterators guarantee first and foremost that you get the list's elements in the internal order of the list (aka. insertion order). More specifically it is in the order you've inserted the elements or on how you've manipulated ...
What is the difference between a web API and a web service?
...ework which helps you to build REST based interfaces. The response can be either JSON or XML, but there is no way to generate clients automatically because Web API does not offer a service description like the WSDL from Web Services.
So it depends on your requirements which one of the techniques you...
Difference between object and class in Scala
...object O creates a singleton object O as instance of some anonymous class; it can be used to hold static members that are not associated with instances of some class.
object O extends T makes the object O an instance of trait T; you can then pass O anywhere, a T is expected.
if there is a class C, t...
Most used parts of Boost [closed]
...ght to myself "why didn't I know about this sooner!" - I hated having to write code like
25 Answers
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No internet on Android emulator - why and how to fix? [closed]
I am trying to use internet with the Android emulator, but with no success.
Any ideas?
10 Answers
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How would you go about parsing Markdown? [closed]
... know of, that uses an actual parser, is Jon MacFarleane’s peg-markdown. Its parser is based on a Parsing Expression Grammar parser generator called peg.
EDIT: Mauricio Fernandez recently released his Simple Markup Markdown parser, which he wrote as part of his OcsiBlog Weblog Engine. Because the...
“The underlying connection was closed: An unexpected error occurred on a send.” With SSL Certificate
...NECTION WAS CLOSED: AN UNEXPECTED ERROR OCCURRED ON A SEND" in my logs and it is breaking our OEM integration with our email marketing system at random times varying from [1hour - 4 hours]
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