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Selecting data frame rows based on partial string match in a column

I want to select rows from a data frame based on partial match of a string in a column, e.g. column 'x' contains the string "hsa". Using sqldf - if it had a like syntax - I would do something like: ...
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Count with IF condition in MySQL query

I have two tables, one is for news and the other one is for comments and I want to get the count of the comments whose status has been set as approved. ...
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Creating a new column based on if-elif-else condition

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Is it possible to set transparency in CSS3 box-shadow?

Is it possible to set transparency on the box shadow? 1 Answer 1 ...
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Python unittests in Jenkins?

How do you get Jenkins to execute python unittest cases? Is it possible to JUnit style XML output from the builtin unittest package? ...
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How to get the first column of a pandas DataFrame as a Series?

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How Pony (ORM) does its tricks?

Pony ORM does the nice trick of converting a generator expression into SQL. Example: 1 Answer ...
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What is q=0.5 in Accept* HTTP headers?

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Two statements next to curly brace in an equation

How can I write an equation with one curly brace ( { ), and on the right-hand side next to the curly, two statements in two different lines? ...
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how to check redis instance version?

how to check Redis server version? 6 Answers 6 ...