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What are the performance characteristics of sqlite with very large database files? [closed]
...a single table, or multiple tables. Each table had about 8 columns, almost all integers, and 4 indices.
The idea was to insert enough data until sqlite files were about 50GB.
Single Table
I tried to insert multiple rows into a sqlite file with just one table. When the file was about 7GB (sorry I ...
How do I remove all non-ASCII characters with regex and Notepad++?
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Be sure to tick off "Wrap around" if you want to loop in the document for all non-ASCII characters.
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Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
...df = df.drop(df[<some boolean condition>].index)
Example
To remove all rows where column 'score' is < 50:
df = df.drop(df[df.score < 50].index)
In place version (as pointed out in comments)
df.drop(df[df.score < 50].index, inplace=True)
Multiple conditions
(see Boolean Indexing...
How to use Active Support core extensions
I have Active Support 3.0.3 installed and Rails 3.0.3 with Ruby 1.8.7.
5 Answers
5
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Visual Studio Expand/Collapse keyboard shortcuts [duplicate]
...code file open, I can press CTRL + M or CTRL + M + O to collapse all code blocks, regions, namespaces, etc.
7 Ans...
sql query to return differences between two tables
...g to compare two tables, SQL Server, to verify some data. I want to return all the rows from both tables where data is either in one or the other. In essence, I want to show all the discrepancies. I need to check three pieces of data in doing so, FirstName, LastName and Product.
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How to add multiple files to Git at the same time
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To add all the changes you've made:
git add .
To commit them:
git commit -m "MY MESSAGE HERE" #-m is the message flag
You can put those steps together like this:
git commit -a -m "MY MESSAGE HERE"
To push your committed change...
Updating version numbers of modules in a multi-module Maven project
I have a multi-module maven project. We intend to version all these modules together. But as of now I am ending up hard-coding version in each of the module pom.xml as below
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Convert all strings in a list to int
In Python, I want to convert all strings in a list to integers.
4 Answers
4
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How to get all of the immediate subdirectories in Python
...o write a simple Python script that will copy a index.tpl to index.html in all of the subdirectories (with a few exceptions).
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