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How to find a table having a specific column in postgresql
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64
you can query system catalogs:
select c.relname
from pg_class as c
inner join pg_attribute ...
In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?
.... As TIMESTAMP only stores the number of seconds since 1970-01-01, it uses 4 bytes.
You can read more about the differences between time formats in MySQL here.
In the end, it comes down to what you need your date/time column to do. Do you need to store dates and times before 1970 or after 2038? Us...
Moving multiple files in TFS Source Control
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4 Answers
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Active
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How to document a string type in jsdoc with limited possible values
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24
How about declaring a dummy enum:
/**
* Enum string values.
* @enum {string}
*/
Enumeration ...
java SSL and cert keystore
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LINGS
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answered May 3 '11 at 14:46
DaveHDaveH
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JavaScript: What are .extend and .prototype used for?
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edited Oct 19 '15 at 0:04
modeeb
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answered Sep 23 '10 at 18:27
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How Python web frameworks, WSGI and CGI fit together
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+250
How WSG...
How to remove a file from version control without deleting it?
...hard Chambers
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answered Aug 26 '10 at 21:56
Andres Jaan TackAndres Jaan Tack
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Normalize data in pandas
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In [92]: df
Out[92]:
a b c d
A -0.488816 0.863769 4.325608 -4.721202
B -11.937097 2.993993 -12.916784 -1.086236
C -5.569493 4.672679 -2.168464 -9.315900
D 8.892368 0.932785 4.535396 0.598124
In [93]: df_norm = (df - df.mean()) / (df.max() - df.m...