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How to keep index when using pandas merge
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Note that for some left merge operations, you may end up with more rows than in a when there are multiple matches between a and b. In this case, you may need to drop duplicates.
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Troubleshooting “Illegal mix of collations” error in mysql
...l_cs
Your solution is to specify a shared collation for the two columns within the query. Here is an example that uses the COLLATE clause:
SELECT * FROM table ORDER BY key COLLATE latin1_general_ci;
Another option is to use the BINARY operator:
BINARY str is the shorthand for CAST(str AS BI...
How to split a string into a list?
I want my Python function to split a sentence (input) and store each word in a list. My current code splits the sentence, but does not store the words as a list. How do I do that?
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Should I inherit from std::exception?
...) recommend that application-specific exception classes in C++ should inherit from std::exception . I'm not clear on the benefits of this approach.
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How do you run a SQL Server query from PowerShell?
Is there a way to execute an arbitrary query on a SQL Server using Powershell on my local machine?
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Convert a Scala list to a tuple?
How can I convert a list with (say) 3 elements into a tuple of size 3?
13 Answers
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How can I grep for a string that begins with a dash/hyphen?
I want to grep for the string that starts with a dash/hyphen, like -X , in a file, but it's confusing this as a command line argument.
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How does the const constructor actually work?
I've noticed it's possible to create a const constructor in Dart. In the documentation, it says that const word is used to denote something a compile time constant.
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Moving multiple files in TFS Source Control
...multiple files from one folder to another (to retain file history). In addition to Team Explorer (with SP 1) I've also got the latest TFS Power Tools (October 2008) installed (for Windows Shell integration).
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How to calculate percentage with a SQL statement
I have a SQL Server table that contains users & their grades. For simplicity's sake, lets just say there are 2 columns - name & grade . So a typical row would be Name: "John Doe", Grade:"A".
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