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

... A unique constraint can't be over 8000 bytes per row and will only use the first 900 bytes even then so the safest maximum size for your keys would be: create table [misc_info] ( [id] INTEGER PRIMARY KEY IDENTITY NOT NULL, [key] nvarchar(450) UNIQUE...
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How to change ViewPager's page?

... answered Sep 16 '11 at 14:40 Mark AllisonMark Allison 21.2k88 gold badges4242 silver badges4545 bronze badges ...
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Length of generator output [duplicate]

...f you have a lazy infinite generator? For example: def fib(): a, b = 0, 1 while True: a, b = b, a + b yield a This never terminates but will generate the Fibonacci numbers. You can get as many Fibonacci numbers as you want by calling next(). If you really need to know t...
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What are libtool's .la file for?

... 140 It is a textual file that includes a description of the library. It allows libtool to create pl...
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Is there a naming convention for Django apps

... answered Jun 23 '10 at 13:12 thraxilthraxil 3,95122 gold badges1616 silver badges1010 bronze badges ...
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Configuring Vim for C++

... With either of these, you don't even need tabs (which does not scale for 10+ files) to manage your project. Class navigation: Taglist or Tagbar Edit: Updated as of July 2013 share | improve thi...
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SQL ON DELETE CASCADE, Which Way Does the Deletion Occur?

... Bhavesh Gangani 2,80044 gold badges3535 silver badges6363 bronze badges answered Nov 18 '12 at 21:38 John WooJohn Woo ...
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How can I append a string to an existing field in MySQL?

... answered Sep 22 '10 at 1:09 Daniel VassalloDaniel Vassallo 301k6666 gold badges475475 silver badges424424 bronze badges ...
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How do you receive a url parameter with a spring controller mapping

...wLowRepImageUploadWarning: true, reputationToPostImages: 10, bindNavPrevention: true, postfix: "", imageUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\"...
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With MySQL, how can I generate a column containing the record index in a table?

...@curRow + 1 AS row_number FROM league_girl l JOIN (SELECT @curRow := 0) r; The JOIN (SELECT @curRow := 0) part allows the variable initialization without requiring a separate SET command. Test case: CREATE TABLE league_girl (position int, username varchar(10), score int); INSERT INTO leagu...