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In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
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ohyes
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answered Jun 8 '14 at 23:44
Jean Le MoignanJean ...
Check if one IEnumerable contains all elements of another IEnumerable
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How can I determine whether a Java class is abstract by reflection
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sethseth
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What does 'wb' mean in this code, using Python?
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118
File mode, write and binary. Since you are writing a .jpg file, it looks fine.
But if you supp...
sed: print only matching group
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I had to add the -r or ` --regexp-extended` option otherwise I was getting invalid reference \1 on s' command's RHS ` error.
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Combine Date and Time columns using python pandas
...5 03-06-2013 01:00:00
6 03-06-2013 21:00:00
7 03-06-2013 22:00:00
8 03-06-2013 23:00:00
9 04-06-2013 01:00:00
dtype: object
In [12]: pd.to_datetime(df['Date'] + ' ' + df['Time'])
Out[12]:
0 2013-01-06 23:00:00
1 2013-02-06 01:00:00
2 2013-02-06 21:00:00
3 2013-02-06 22:00:00
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Find difference between timestamps in seconds in PostgreSQL
I have a table in PostgreSQL 8.3 with 2 timestamp columns. I would like to get the difference between these timestamps in seconds. Could you please help me how to get this done?
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is of a type that is invalid for use as a key column in an index
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A unique constraint can't be over 8000 bytes per row and will only use the first 900 bytes even then so the safest maximum size for your keys would be:
create table [misc_info]
(
[id] INTEGER PRIMARY KEY IDENTITY NOT NULL,
[key] nvarchar(450) UNIQU...
MySQL: Selecting multiple fields into multiple variables in a stored procedure
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edited Feb 8 '15 at 17:50
answered Mar 15 '10 at 22:52
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Nginx location priority
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edited May 18 at 21:09
Jens
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answer...