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How to DROP multiple columns with a single ALTER TABLE statement in SQL Server?
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For SQL Server:
ALTER TABLE TableName
DROP COLUMN Column1, Column2;
The syntax is
DROP { [ CONSTRAINT ] constraint_name | COLUMN column } [ ,...n ]
For MySQL:
ALTER TABLE TableName
DROP COLUMN Column1,
DROP COLUMN Column2;
or like this1:
ALTER TABLE TableName
DROP C...
Python Script execute commands in Terminal
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201
There are several ways to do this:
A simple way is using the os module:
import os
os.system(...
How to design a database for User Defined Fields?
...cern, I would go with #6... a table per UDF (really, this is a variant of #2). This answer is specifically tailored to this situation and the description of the data distribution and access patterns described.
Pros:
Because you indicate that some UDFs
have values for a small portion of
the overal...
Getting assembly name
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edited Nov 24 '10 at 11:58
icecrime
63.5k1111 gold badges9090 silver badges105105 bronze badges
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How to do an instanceof check with Scala(Test)
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edited Aug 26 '18 at 10:25
answered Dec 19 '11 at 13:27
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How does comparison operator works with null int?
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210
According to MSDN - it's down the page in the "Operators" section:
When you perform compar...
How do I read the first line of a file using cat?
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edited Sep 27 '19 at 15:34
Akaisteph7
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What Are the Differences Between PSR-0 and PSR-4?
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289
They are very similar so it is not surprising that it's a bit confusing. The summary is that P...
Reduce left and right margins in matplotlib plot
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259
One way to automatically do this is the bbox_inches='tight' kwarg to plt.savefig.
E.g.
impor...