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Maximum length for MySQL type text
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See for maximum numbers:
http://dev.mysql.com/doc/refman/5.0/en/storage-requirements.html
TINYBLOB, TINYTEXT L + 1 bytes, where L < 2^8 (255 Bytes)
BLOB, TEXT L + 2 bytes, where L < 2^16 (64 Kilobytes)
MEDIUMBLOB, MEDI...
Cannot change column used in a foreign key constraint
...RT, UPDATE, DELETE ) will wait till timeout or UNLOCK TABLES; is executed
http://dev.mysql.com/doc/refman/5.5/en/lock-tables.html
EDIT 2: OP asked for a more detailed explanation of the line "The type and definition of foreign key field and reference must be equal. This means your foreign key disa...
Uses for the Java Void Reference Type?
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Void has become convention for a generic argument that you are not interested in. There is no reason why you should use any other non-instantiable type, such as System.
It is also often used in for example Map values (although Collecti...
Android customized button; changing text color
...ust like you did for background, for example:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Focused and not pressed -->
<item android:state_focused="true"
android:state_pressed="false"
android:color="#ffffff" />
<...
maxlength ignored for input type=“number” in Chrome
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How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?
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Here is solution: http://middlesphere-1.blogspot.ru/2014/06/this-code-allows-to-break-limit-if.html
//this code allows to break limit if client jdk/jre has no unlimited policy files for JCE.
//it should be run once. So this static section is ...
How is “mvn clean install” different from “mvn install”?
...se of the clean
lifecycle
"install" is a phase of the
default lifecycle
http://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html#Lifecycle_Reference
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Hidden Features of Visual Studio (2005-2010)?
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Sara Ford covers lots of lovely tips: http://blogs.msdn.com/saraford/archive/tags/Visual+Studio+2008+Tip+of+the+Day/default.aspx
But some of my favourites are Code Snippets, Ctrl + . to add a using <Namespace> or generate a method stub.
I can't live withou...
Ruby on Rails - Import Data from a CSV file
...pread the load of generating entries to multiple workers.
See also:
https://github.com/tilo/smarter_csv
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