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Unique constraint that allows empty values in MySQL
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183
Yes, you can do this. See the MySQL reference (version 5.5).
A UNIQUE index creates a cons...
Android Closing Activity Programmatically
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175
What about the Activity.finish() method (quoting) :
Call this when your activity is done
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What's the difference between findAndModify and update in MongoDB?
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156
If you fetch an item and then update it, there may be an update by another thread between thos...
Spring Data JPA find by embedded object property
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145
This method name should do the trick:
Page<QueuedBook> findByBookIdRegion(Region region...
LINQ to Entities only supports casting EDM primitive or enumeration types with IEntity interface
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188
I was able to resolve this by adding the class generic type constraint to the extension method...
What is the difference between named and positional parameters in Dart?
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edited Mar 11 '19 at 8:54
onmyway133
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How to add additional fields to form before submit?
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163
Yes.You can try with some hidden params.
$("#form").submit( function(eventObj) {
$("&...
Negation in Python
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The negation operator in Python is not. Therefore just replace your ! with not.
For your exampl...
What is “above-the-fold content” in Google Pagespeed?
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This is because Google recently changed the page speed tool to better reflect an increasingly ...