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Copy values from one column to another in the same table
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CzechnologyCzechnology
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Is there an MD5 Fixed Point where md5(x) == x?
...ute a hash on a 16 byte value, it would take 10790283070806014188970529154.99 years to calculate all those hashes.
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Bash Templating: How to build configuration files from templates with Bash?
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yottatsayottatsa
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XAMPP, Apache - Error: Apache shutdown unexpectedly
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AbuarifAbuarif
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How to find an element by matching exact text of the element in Capybara
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ndnenkov
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answered Jan 31 '14 at 18:03
John WJohn W
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What are the differences between a clustered and a non-clustered index?
...ered indexes for a table(till sql version 2005 later versions support upto 999 non-clustered indexes).
Usually made on the any key.
The leaf node of a nonclustered index does not consist of the data pages. Instead, the leaf nodes contain index rows.
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Read specific columns from a csv file with csv module?
...pandas as pd
import io
s = '''
total_bill,tip,sex,smoker,day,time,size
16.99,1.01,Female,No,Sun,Dinner,2
10.34,1.66,Male,No,Sun,Dinner,3
21.01,3.5,Male,No,Sun,Dinner,3
'''
df = pd.read_csv(io.StringIO(s), usecols=['total_bill', 'day', 'size'])
print(df)
total_bill day size
0 16.99 Sun...
In git, is there a simple way of introducing an unrelated branch to a repository?
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Artem TikhomirovArtem Tikhomirov
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How to sort an array of associative arrays by value of a given key in PHP?
...ternal cast to integer of the callback's return value. So values such as 0.99 and 0.1 will both be cast to an integer value of 0, which will compare such values as equal.
This is an important trap to bear in mind when using usort in PHP 5.x! My original version of this answer made this mistake and...
LINQ: Not Any vs All Don't
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Jon HannaJon Hanna
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