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Does order of where clauses matter in SQL?
...o satisfy that query.
I know the SQL Server query optimizer will pick a suitable index - no matter which order you have your two conditions in. I assume other RDBMS will have similar strategies.
What does matter is whether or not you have a suitable index for this!
In the case of SQL Server, it w...
Is it good practice to use java.lang.String.intern()?
... Javadoc about String.intern() doesn't give much detail. (In a nutshell: It returns a canonical representation of the string, allowing interned strings to be compared using == )
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Missing return statement in a non-void method compiles
I encountered a situation where a non-void method is missing a return statement and the code still compiles.
I know that the statements after the while loop are unreachable (dead code) and would never be executed. But why doesn't the compiler even warn about returning something? Or why would a...
Google Maps API 3 - Custom marker color for default (dot) marker
...ary, which does let you define custom colours for markers, but I can't get it to use the default marker (the one you get when you do a google maps search - with a dot in the middle), it just seems to provide markers with a letter in, or with a special icon.
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svn: replace trunk with branch
What is the best way to make one of the branches of a subversion repository the new trunk?
8 Answers
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missing private key in the distribution certificate on keychain
...e have a company developer account (not enterprise) and so in order to submit our app, I requested from our team lead to send me the distribution certificate and create and send me a distribution provisioning profile.
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Does reading an entire file leave the file handle open?
If you read an entire file with content = open('Path/to/file', 'r').read() is the file handle left open until the script exits? Is there a more concise method to read a whole file?
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How do I split a string so I can access item x?
Using SQL Server, how do I split a string so I can access item x?
44 Answers
44
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How can I get the DateTime for the start of the week?
...follow
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edited Dec 14 '17 at 18:12
Garrett Stauber
322 bronze badges
answered Sep 1 '08 ...
Regular Expression for alphanumeric and underscores
...ular expressions, and probably a lot of other languages as well.
Breaking it down:
^ : start of string
[ : beginning of character group
a-z : any lowercase letter
A-Z : any uppercase letter
0-9 : any digit
_ : underscore
] : end of character group
* : zero or more of the given characters
$ : end o...