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is of a type that is invalid for use as a key column in an index

...x. nvarchar(100) 2. Create a check constraint that compares the value with all the keys in the table. The condition is: ([dbo].[CheckKey]([key])=(1)) and [dbo].[CheckKey] is a scalar function defined as: CREATE FUNCTION [dbo].[CheckKey] ( @key nvarchar(max) ) RETURNS bit AS BEGIN declare...
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Proper use of errors

... It seems to be missing a more general type for invalid argument. Not all invalid arguments fall under RangeError. Should you define custom types or just throw new Error("<message>");? – anddero Apr 5 at 7:39 ...
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How to prevent text in a table cell from wrapping

...t: Use nowrap attribute inside the "td" tag: <th nowrap="nowrap">Really long column heading</th> Use non-breakable spaces between your words: <th>Really long column heading</th> ...
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I want my android application to be only run in portrait mode?

... In the manifest, set this for all your activities: <activity android:name=".YourActivity" android:configChanges="orientation" android:screenOrientation="portrait"/> Let me explain: With android:configChanges="orientation" you tell Andro...
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Difference between .tagName and .nodeName

... The tagName property is meant specifically for element nodes (type 1 nodes) to get the type of element. There are several other types of nodes as well (comment, attribute, text, etc.). To get the name of any of the various node types, you can use the nodeName p...
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How does __proto__ differ from constructor.prototype?

... I've been trying to wrap my head around this recently and finally came up with this "map" that I think sheds full light over the matter http://i.stack.imgur.com/KFzI3.png I know I'm not the first one making this up but it was more interesting figuring it out that finding it :-). An...
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Using multiple property files (via PropertyPlaceholderConfigurer) in multiple projects/modules

... If you add all file in 1 tag, then don't event need ignore-unresolvable="true", otherwise need. – Eric Wang May 8 '15 at 10:43 ...
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Preserve line endings

... run sed to do some substitution on windows and I noticed that it automatically converts line endings to Unix (\n). Is there an option to tell sed to use Windows line endings (\r\n) or even better to preserve the line endings from the file? ...
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Following git-flow how should you handle a hotfix of an earlier release?

...at only works if production versions are strictly increasing. That's typically true for a website which has only one production version. If you have to maintain multiple production versions, one branch to track production is not enough. A solution is not to use master to track production. Instea...
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How to create a static library with g++?

...his is highly misleading. And why should you "never" create an executable called test? – Lightness Races in Orbit May 10 '11 at 8:28 ...