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How do I use the CONCAT function in SQL Server 2008 R2?
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@Svish + behaves differently, the results for SELECT 'A' + 'B' + 'C' vs SELECT CONCAT('A', 'B', 'C') vs SELECT 'A' + 'B' + NULL vs SELECT CONCAT('A', 'B', NULL) are ABC, ABC, NULL, AB
– ta.speot.is
May 19...
In C# what is the difference between a destructor and a Finalize method in a class?
What is the difference, if there is one, between a destructor and a Finalize method in a class?
3 Answers
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Undo a particular commit in Git that's been pushed to remote repos
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Identify the hash of the commit, using git log, then use git revert <commit> to create a new commit that removes these changes. In a way, git revert is the converse of git cherry-pick -- the latter applies the patch to a br...
What does SynchronizationContext do?
...on context), a SynchronizationContext does not necessarily represent a specific thread; it can also forward invocation of the delegates passed to it to any of several threads (e.g. to a ThreadPool worker thread), or (at least in theory) to a specific CPU core, or even to another network host. Where ...
How to Save Console.WriteLine Output to Text File
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I wonder if you can show the output on the console and have it save to a file at the same time.
– John Alexiou
Mar 22 '17 at 17:01
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Why do I get “a label can only be part of a statement and a declaration is not a statement” if I hav
I have the following simplified code:
2 Answers
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How can I do an UPDATE statement with JOIN in SQL Server?
...I/ISO method will typically be much slower than the other two methods, but if you're using a SQL DBMS other than MySQL, SQL Server, or Oracle, then it may be the only way to go (e.g. if your SQL DBMS doesn't support MERGE):
ANSI/ISO:
update ud
set assid = (
select sale.assid
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How does UTF-8 “variable-width encoding” work?
...ell what kind of byte you're looking at from the first few bits, then even if something gets mangled somewhere, you don't lose the whole sequence.
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Cannot install Lxml on Mac os x 10.9
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A few notes on how to manually check if they are installed - stackoverflow.com/a/20834890/255961
– studgeek
Jul 28 '14 at 4:34
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Forms authentication timeout vs sessionState timeout
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They are different things. The Forms Authentication Timeout value sets the amount of time in minutes that the authentication cookie is set to be valid, meaning, that after value number of minutes, the cookie will expire and the user wi...