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What does the line “#!/bin/sh” mean in a UNIX shell script?
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143
It's called a shebang, and tells the parent shell which interpreter should be used to execute ...
Using OR in SQLAlchemy
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answered Oct 30 '11 at 0:22
Bastien LéonardBastien Léonard
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Difference between a User and a Login in SQL Server
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edited Feb 1 '14 at 15:27
AminM
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How to set current working directory to the directory of the script in bash?
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11 Answers
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How to check if running as root in a bash script
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17 Answers
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MySQL Select minimum/maximum among two (or more) given values
...hieve it.
SELECT
GREATEST(A.date0, B.date0) AS date0,
LEAST(A.date1, B.date1) AS date1
FROM A, B
WHERE B.x = A.x
Both are described here http://dev.mysql.com/doc/refman/5.0/en/comparison-operators.html
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SQL is null and = null [duplicate]
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141
In SQL, a comparison between a null value and any other value (including another null) using a...
in entity framework code first, how to use KeyAttribute on multiple columns
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You can specify the column order in the attributes, for instance:
public class MyEntity
{
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What is the difference between `after_create` and `after_save` and when to use which?
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214
after_create only works once - just after the record is first created.
after_save works every ...
CSS Background Opacity [duplicate]
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1179
Children inherit opacity. It'd be weird and inconvenient if they didn't.
You can use a trans...