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Test if remote TCP port is open from a shell script
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460
As pointed by B. Rhodes, nc (netcat) will do the job. A more compact way to use it:
nc -z <ho...
How to write DataFrame to postgres table?
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Starting from pandas 0.14 (released end of May 2014), postgresql is supported. The sql module now uses sqlalchemy to support different database flavors. You can pass a sqlalchemy engine for a postgresql database (see docs). E.g.:
from sqlalchemy...
How to cherry pick from 1 branch to another
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Paolo
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answered Mar 14 '11 at 20:59
CanSpiceCanSpice
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Difference between Xcode version (CFBundleShortVersionString) and build (CFBundleVersion)
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edited Jul 20 '12 at 17:36
answered Jul 30 '11 at 6:10
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Why does Sql Server keep executing after raiserror when xact_abort is on?
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edited Oct 10 '13 at 20:25
Ian Boyd
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How do I tell matplotlib that I am done with a plot?
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edited Feb 7 '12 at 12:04
Tom
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answered Apr ...
Groovy: what's the purpose of “def” in “def x = 0”?
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edited Oct 11 '08 at 16:09
answered Oct 9 '08 at 3:51
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Never seen before C++ for loop
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320
The condition of the for loop is in the middle - between the two semicolons ;.
In C++ it is OK ...
Difference between float and decimal data type
...I found when I had this doubt.
mysql> create table numbers (a decimal(10,2), b float);
mysql> insert into numbers values (100, 100);
mysql> select @a := (a/3), @b := (b/3), @a * 3, @b * 3 from numbers \G
*************************** 1. row ***************************
@a := (a/3): 33.33333...
Creating java date object from year,month,day
...12 is interpreted as december + 1 month. Use
c.set(year, month - 1, day, 0, 0);
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