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Does MySQL ignore null values on unique constraints?
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NULL
NULL
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This is not true for all databases. SQL Server 2005 and older, for example, only allows a single NULL value in a column that has a unique constraint.
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How do I declare and initialize an array in Java?
...d(0, 100).toArray(); // From 0 to 100
int [] myIntArray = IntStream.of(12,25,36,85,28,96,47).toArray(); // The order is preserved.
int [] myIntArray = IntStream.of(12,25,36,85,28,96,47).sorted().toArray(); // Sort
For classes, for example String, it's the same:
String[] myStringArray = new Strin...
SQL, Postgres OIDs, What are they and why are they useful?
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OIDs basically give you a built-in id for every row, contained in a system column (as opposed to...
How to resolve “must be an instance of string, string given” prior to PHP 7?
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Prior to PHP 7 type hinting can only be used to force the types of objects and arrays. Scalar ty...
How to keep the local file or the remote file during merge using Git and the command line?
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Waiting for Dev...Waiting for Dev...
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Concatenate two string literals
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RESTful API methods; HEAD & OPTIONS
...ent entity (as would be indicated by a change in Content-Length, Content-MD5, ETag or Last-Modified), then the cache MUST treat the cache entry as stale.
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How to Loop through items returned by a function with ng-repeat?
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Short answer: do you really need such function or you can use property? http://jsfiddle.net/awnq...
Why is it faster to check if dictionary contains the key, rather than catch the exception in case it
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edited Apr 25 '13 at 7:13
answered Apr 19 '13 at 9:48
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