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Does MySQL ignore null values on unique constraints?
...ws multiple NULLs in a column with a unique constraint.
CREATE TABLE table1 (x INT NULL UNIQUE);
INSERT table1 VALUES (1);
INSERT table1 VALUES (1); -- Duplicate entry '1' for key 'x'
INSERT table1 VALUES (NULL);
INSERT table1 VALUES (NULL);
SELECT * FROM table1;
Result:
x
NULL
NULL
1
This i...
Android - Set fragment id
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117
You can't set a fragment's ID programmatically.
There is however, a String tag that you can s...
Python's “in” set operator
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101
Yes, but it also means hash(b) == hash(x), so equality of the items isn't enough to make them ...
PhpStorm wrap/surround selection?
...-> Surround selection on typing quote or brace.
Update (for PhpStorm 2016)
For PhpStorm Version 2016, use Cmd + Alt + S (on Mac) or Ctrl + Alt + S (on Win) to go to Settings. Tick on checkbox of Settings -> Editor -> General -> Smart Keys -> Surround selection on typing quote or br...
include external .js file in node.js app
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100
To place an emphasis on what everyone else has been saying var foo in top level does not creat...
Is it possible to Pivot data using LINQ?
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192
Something like this?
List<CustData> myList = GetCustData();
var query = myList
.Gr...
How to trigger the onclick event of a marker on a Google Maps V3?
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+100
I've found out the solution! Thanks to Firebug ;)
//"markers" is an array that I declared which contains all the marker of the map
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Submitting the value of a disabled input field
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answered Oct 28 '10 at 17:46
SarfrazSarfraz
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Java 8 functional interface with no arguments and no return value
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edited Aug 16 '16 at 7:58
Roland
6,00866 gold badges4848 silver badges102102 bronze badges
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Exporting functions from a DLL with dllexport
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135
If you want plain C exports, use a C project not C++. C++ DLLs rely on name-mangling for all t...