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Do I need to create indexes on foreign keys on Oracle?
I have a table A and a table B . A has a foreign key to B on B 's primary key, B_ID .
7 Answers
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MySQL Orderby a number, Nulls last
...L has an undocumented syntax to sort nulls last. Place a minus sign (-) before the column name and switch the ASC to DESC:
SELECT * FROM tablename WHERE visible=1 ORDER BY -position DESC, id DESC
It is essentially the inverse of position DESC placing the NULL values last but otherwise the same a...
Restoring Nuget References?
...ur.Project.Name
If you want to re-install packages and restore references for the whole solution omit the -ProjectName parameter.
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Stop all active ajax requests in jQuery
I have a problem, when submitting a form all active ajax request fail, and that triggers error event.
16 Answers
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Select all DIV text with single mouse click
...his. Then you can add the functionality unobtrusively to several elements, for example several divs in a container: jQuery('#selectcontainer div').click(selectText);
– chiborg
Oct 16 '11 at 9:57
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Linq to Sql: Multiple left outer joins
... I like this approach better than using all the into statements. Thanks for posting this!
– Bryan Roth
Mar 22 '10 at 21:57
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How to replace a hash key with another key
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rails Hash has standard method for it:
hash.transform_keys{ |key| key.to_s.upcase }
http://api.rubyonrails.org/classes/Hash.html#method-i-transform_keys
UPD: ruby 2.5 method
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How to affect other elements when one element is hovered
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Don't forget the general sibling combinator ~ for 'cube is somewhere after container in the DOM and shares a parent'
– robertc
Dec 21 '10 at 18:50
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How to change color of Android ListView separator line?
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Or you can code it:
int[] colors = {0, 0xFFFF0000, 0}; // red for the example
myList.setDivider(new GradientDrawable(Orientation.RIGHT_LEFT, colors));
myList.setDividerHeight(1);
Hope it helps
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onCreateOptionsMenu inside Fragments
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onCreateOptionsMenu() for fragments has different arguments than for Activities.
– Jorge
Dec 23 '13 at 13:34
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