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How to find the size of an array in postgresql
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112
As vyegorov mentioned, array_length will do the trick. Or if you know that the array is 1-dim...
CSS: How to have position:absolute div inside a position:relative div not be cropped by an overflow:
...here is the full code with this change:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<style type="text/css">
/* Positioning */
#box1 { overflow: hidden }
#box2 { position: absolute }
#box3 {...
Grouped LIMIT in PostgreSQL: show the first N rows for each group?
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edited Aug 11 '16 at 9:08
ngspkinga
42155 silver badges1616 bronze badges
answered May 19...
What's the dSYM and how to use it? (iOS SDK)
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162
dSYM files store the debug symbols for your app
Services like crashlytics use it to replace t...
How to convert ActiveRecord results into an array of hashes
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212
as_json
You should use as_json method which converts ActiveRecord objects to Ruby Hashes despi...
Read a zipped file as a pandas DataFrame
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166
If you want to read a zipped or a tar.gz file into pandas dataframe, the read_csv methods incl...
ValueError: math domain error
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134
Your code is doing a log of a number that is less than or equal to zero. That's mathematically...
Postgresql SELECT if string contains
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137
You should use 'tag_name' outside of quotes; then its interpreted as a field of the record. Co...
Math.random() versus Random.nextInt(int)
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169
Here is the detailed explanation of why "Random.nextInt(n) is both more efficient and less bia...
Is there type Long in SQLite?
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221
From the SQLite docs
INTEGER. The value is a signed integer, stored in 1, 2, 3, 4, 6, or 8 b...