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How can I use UUIDs in SQLAlchemy?
...I totally agree with you. Some of the other answers are cool for other databases, but for postgres this is the cleanest solution. (You can also set a default as uuid.uuid4).
– pacha
Apr 10 '18 at 16:38
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Clear file cache to repeat performance testing
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Works perfectly for me under Windows 7 SP1, x64. Great tip!
– cxxl
Oct 22 '12 at 16:26
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Where can I set environment variables that crontab will use?
...environment -- not done by cron (usually switches HOME)
. $HOME/.cronfile
base=`basename $0`
cmd=${REAL_HOME:-/real/home}/bin/$base
if [ ! -x $cmd ]
then cmd=${HOME}/bin/$base
fi
exec $cmd ${@:+"$@"}
(Written using an older coding standard - nowadays, I'd use a shebang '#!' at the start.)
The ...
How do I convert dates in a Pandas data frame to a 'date' data type?
...3-01-02
2 3 2013-01-03
In [32]: df['time'] = df['time'].astype('datetime64[ns]')
In [33]: df
Out[33]:
a time
0 1 2013-01-01 00:00:00
1 2 2013-01-02 00:00:00
2 3 2013-01-03 00:00:00
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How do you delete a column by name in data.table?
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@user3969377 if you want to remove a column based on the contents of a character variable you'd simply wrap it in parenthesis. Ie. df[,(afoo):=NULL]
– Dean MacGregor
Jul 9 '15 at 19:26
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How to increase IDE memory limit in IntelliJ IDEA on Mac?
...k like:
-Xms128m
-Xmx2048m
-XX:MaxPermSize=350m
-XX:ReservedCodeCacheSize=64m
-XX:+UseCodeCacheFlushing
-XX:+UseCompressedOops
Copying the original file is important, as options are not added, they are replaced.
This way your custom options will be preserved between updates and application files...
Support for “border-radius” in IE
...t, allowing you to serve different style definitions to different browsers based on their capabilities.
Obviously, these both add more overhead, but with IE9 due to only run on Vista/7 we might be stuck for quite awhile. As of August 2010 Windows XP still accounts for 48% of web client OSes.
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Script entire database SQL-Server
...y I can get a scripting of all tables, procs, and other objects from a database? I know there's an option to script the database but it only gave me some sort of top level script, certainly not a script to create all tables, procs, udfs, .etc.
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Why does JavaScript only work after opening developer tools in IE once?
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This solution does not work on IE 11 on Windows 7 64-bit.
– Vikram
Aug 18 '17 at 8:51
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