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Alter Table Add Column Syntax
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198
Just remove COLUMN from ADD COLUMN
ALTER TABLE Employees
ADD EmployeeID numeric NOT NULL ID...
Is it possible to view RabbitMQ message contents directly from the command line?
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107
You should enable the management plugin.
rabbitmq-plugins enable rabbitmq_management
See he...
MongoDB Aggregation: How to get total records count?
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13 Answers
13
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How can I implode an array while skipping empty array items?
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212
You can use array_filter():
If no callback is supplied, all entries of input equal to FALSE...
Pandas count(distinct) equivalent
...()
Example:
In [2]: table
Out[2]:
CLIENTCODE YEARMONTH
0 1 201301
1 1 201301
2 2 201301
3 1 201302
4 2 201302
5 2 201302
6 3 201302
In [3]: table.groupby('YEARMONTH').CLIENTCODE.nunique()
Out[3...
OS X Terminal Colors [closed]
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751
Here is a solution I've found to enable the global
terminal colors.
Edit your .bash_profile (si...
Static variables in member functions
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169
Since class A is a non-template class and A::foo() is a non-template function. There will be o...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
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111
To understand what mod_rewrite does you first need to understand how a web server works. A web...
binning data in python with scipy/numpy
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184
It's probably faster and easier to use numpy.digitize():
import numpy
data = numpy.random.ran...
Generate random password string with requirements in javascript
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18 Answers
18
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