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Why do I get “a label can only be part of a statement and a declaration is not a statement” if I hav
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Renan GemignaniRenan Gemignani
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How can I add a column that doesn't allow nulls in a Postgresql database?
...default value.
ALTER TABLE mytable ADD COLUMN mycolumn character varying(50) NOT NULL DEFAULT 'foo';
... some work (set real values as you want)...
ALTER TABLE mytable ALTER COLUMN mycolumn DROP DEFAULT;
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Node.js: what is ENOSPC error and how to solve?
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Run the below command to avoid ENOSPC:
echo fs.inotify.max_user_watches=524288 | sudo tee -a /...
Get int value from enum in C#
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edited Feb 27 '18 at 15:20
Sae1962
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answered Jun 3 '09 at 6:49...
How can I clear previous output in Terminal in Mac OS X?
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1120
To clear the terminal manually:
⌘+K
Command+K for newer keyboards
To clear the terminal fro...
What is mutex and semaphore in Java ? What is the main difference?
...a thread running which accepts client connections. This thread can handle 10 clients simultaneously. Then each new client sets the semaphore until it reaches 10. When the Semaphore has 10 flags, then your thread won't accept new connections
Mutex are usually used for guarding stuff. Suppose your 10...
How do I use ROW_NUMBER()?
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edited Jun 7 '09 at 2:16
answered Jun 7 '09 at 1:55
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Is there an interactive way to learn Vim? [closed]
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HJKL-learning game:
http://www.vim.org/scripts/script.php?script_id=3409
Screencasts:
http://derekwyatt.org/vim/tutorials/index.html
http://vimcasts.org
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Xcode 6: Keyboard does not show up in simulator
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Banana
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answered Jun 30 '14 at 19:43
JoeJoe
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Embedded MongoDB when running integration tests
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