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quick random row selection in Postgres
...or(random()*N) LIMIT 1;
Consider a table of 2 rows; random()*N generates 0 <= x < 2 and for example SELECT myid FROM mytable OFFSET 1.7 LIMIT 1; returns 0 rows because of implicit rounding to nearest int.
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Replace selector images programmatically
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edited Jan 16 '11 at 15:05
answered Jan 15 '11 at 3:31
Ke...
CSS selector by inline style attribute
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edited Mar 3 '17 at 14:20
answered Dec 8 '11 at 6:07
Bolt...
Which mime type should I use for mp3
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answered May 21 '12 at 16:03
salucesaluce
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Can you change what a symlink points to after it is created?
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106
AFAIK, no, you can't. You have to remove it and recreate it. Actually, you can overwrite a syml...
What data is stored in Ephemeral Storage of Amazon EC2 instance?
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150
Anything that is not stored on an EBS volume that is mounted to the instance will be lost.
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Connect Device to Mac localhost Server? [closed]
...host name or IP address. For example:
http://<name>.local or http://10.0.1.5
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Export specific rows from a PostgreSQL table as INSERT SQL script
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edited Dec 28 '18 at 10:39
Abdellah Alaoui
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How to prevent text in a table cell from wrapping
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500
Have a look at the white-space property, used like this:
th {
white-space: nowrap;
}
Thi...
Moving default AVD configuration folder (.android)
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202
I've found the answer.
Move .android folder to E:\Android
Create environment variable called
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