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SQLAlchemy: What's the difference between flush() and commit()?
... to the database.
flush() is always called as part of a call to commit() (1).
When you use a Session object to query the database, the query will return results both from the database and from the flushed parts of the uncommitted transaction it holds. By default, Session objects autoflush their op...
Rails: how do I validate that something is a boolean?
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edited Jul 18 '16 at 8:15
Luca Spiller
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Join/Where with LINQ and Lambda
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1090
I find that if you're familiar with SQL syntax, using the LINQ query syntax is much clearer, ...
How do I use variables in Oracle SQL Developer?
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rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
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Ruby get object keys as array
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hash = {"apple" => "fruit", "carrot" => "vegetable"}
array = hash.keys #=> ["apple",...
Selecting a row of pandas series/dataframe by integer index
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echoing @HYRY, see the new docs in 0.11
http://pandas.pydata.org/pandas-docs/stable/indexing.html
Here we have new operators, .iloc to explicity support only integer indexing, and .loc to explicity support only label indexing
e.g. imagine this scenario
In [1...
Find the host name and port using PSQL commands
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How can I convert a PFX certificate file for use with Apache on a linux server?
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With OpenSSL you can convert pfx to Apache compatible format with next commands:
openssl pkcs...
How do I use CMake?
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answered Oct 22 '11 at 12:58
holtavoltholtavolt
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