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SQLAlchemy: What's the difference between flush() and commit()?

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postgresql - sql - count of `true` values

...unt(nullif(myCol, false)), -- count true values count(myCol); http://www.postgresql.org/docs/9.0/static/functions-conditional.html share | improve this answer | follow ...
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reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?

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Is null reference possible?

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How can I generate a list of files with their absolute path in Linux?

....* this for everything: ls -d -1 "$PWD/"**/* Taken from here http://www.zsh.org/mla/users/2002/msg00033.html In bash, ** is recursive if you enable shopt -s globstar. share | improve this an...
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How do you use variables in a simple PostgreSQL script?

...documentation. You can use new PG9.0 anonymous code block feature (http://www.postgresql.org/docs/9.1/static/sql-do.html ) DO $$ DECLARE v_List TEXT; BEGIN v_List := 'foobar' ; SELECT * FROM dbo.PubLists WHERE Name = v_List; -- ... END $$; Also you can get the last insert id: DO $$...
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Comparing Haskell's Snap and Yesod web frameworks

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Number of processors/cores in command line

... nproc is what you are looking for. More here : http://www.cyberciti.biz/faq/linux-get-number-of-cpus-core-command/ share | improve this answer | follow ...
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SQL Server SELECT INTO @variable?

... Sounds like you want temp tables. http://www.sqlteam.com/article/temporary-tables Note that #TempTable is available throughout your SP. Note the ##TempTable is available to all. share ...
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How Many Seconds Between Two Dates?

... of the theory of designing date/time libraries and why this is so: http://www.boost.org/doc/libs/1_41_0/doc/html/date_time/details.html#date_time.tradeoffs share | improve this answer | ...