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Are Java static initializers thread safe?
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Best approach to remove time part of datetime in SQL Server
...a function or CAST to a column invalidates index usage. See number 2 here: http://www.simple-talk.com/sql/t-sql-programming/ten-common-sql-programming-mistakes/
Now, this does have an example of later SQL Server optimiser versions managing CAST to date correctly, but generally it will be a bad idea...
Merge PDF files
...m the input files until the write
# operation. Thanks to
# https://stackoverflow.com/questions/6773631/problem-with-closing-python-pypdf-writing-getting-a-valueerror-i-o-operation/6773733#6773733
for input_file in input_files:
input_streams.append(open(input_file,...
How do I pick randomly from an array?
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Can pandas automatically recognize dates?
...das read_csv method is great for parsing dates. Complete documentation at http://pandas.pydata.org/pandas-docs/stable/generated/pandas.io.parsers.read_csv.html
you can even have the different date parts in different columns and pass the parameter:
parse_dates : boolean, list of ints or names, lis...
How to concatenate strings of a string field in a PostgreSQL 'group by' query?
... code, or
combined with array_to_string() to
format it as a list:
http://www.postgresql.org/docs/current/static/xaggr.html
I'd link to the 8.4 development docs but they don't seem to list this feature yet.
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Does JavaScript have a built in stringbuilder class?
...
I just rechecked the performance on http://jsperf.com/javascript-concat-vs-join/2.
The test-cases concatenate or join the alphabet 1,000 times.
In current browsers (FF, Opera, IE11, Chrome), "concat" is about 4-10 times faster than "join".
In IE8, both return...
jQuery removing '-' character from string
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Backbone.js get and set nested object attribute
...ch will fire appropriate change events and the like. Working example here: http://jsfiddle.net/g3U7j/
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CSS: How to position two elements on top of each other, without specifying a height?
...row to leave room for the absolutely positioned elements. For example:
http://jsfiddle.net/ambiguous/zVBDc/
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