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Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails
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21 Answers
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How to remove “Server name” items from history of SQL Server Management Studio
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15 Answers
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Accept function as parameter in PHP
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153
It's possible if you are using PHP 5.3.0 or higher.
See Anonymous Functions in the manual.
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Rails: fields_for with index?
...years ago, for a modern approach see:
https://stackoverflow.com/a/22640703/105403
This would actually be a better approach, following Rails documentation more closely:
<% @questions.each.with_index do |question,index| %>
<% f.fields_for :questions, question do |fq| %>
# he...
How to create a temporary directory/folder in Java?
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18 Answers
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How to remove an item from an array in AngularJS scope?
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10 Answers
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max value of integer
...to +32,767.
In Java, the integer(long) is also 32 bits, but ranges from -2,147,483,648 to +2,147,483,647.
11 Answers
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How to convert DateTime to VarChar
...-05-03'
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-- Convert string
--
SELECT LEFT(CONVERT(VARCHAR, @myDateTime, 120), 10)
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