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Double vs single quotes
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" " allows you to do string interpolation, e.g.:
world_type = 'Mars'
"Hello #{world_type}"
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How do you count the number of occurrences of a certain substring in a SQL varchar?
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20 Answers
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powershell 2.0 try catch how to access the exception
This is the try catch in PowerShell 2.0
1 Answer
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MSysGit vs. Git for Windows
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edited Feb 22 '15 at 15:48
Mark Amery
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data.table vs dplyr: can one do something well the other can't or does poorly?
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+200
We need to cover at least these aspects to provide a comprehensive answer/comparison (in no particular order of importance): Speed, ...
Changing the color of the axis, ticks and labels for a plot in matplotlib
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answered Jan 21 '11 at 17:44
Joe KingtonJoe Kington
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What are database normal forms and can you give examples? [closed]
...ontain only one piece of information, and there can be no duplicate rows.
2NF and 3NF are all about being dependent on the primary key. Recall that a primary key can be made up of multiple columns. As Chris said in his response:
The data depends on the key [1NF], the whole key [2NF] and nothing bu...
Visual Studio debugging/loading very slow
... they load slow, they'll always load slow after that. I could be waiting 1-2 minutes or more.
52 Answers
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Delete the first three rows of a dataframe in pandas
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Use iloc:
df = df.iloc[3:]
will give you a new df without the first three rows.
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Difference between natural join and inner join
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One significant difference between INNER JOIN and NATURAL JOIN is the number of columns return...