Practice for the NetApp interview with these recently asked interview questions.
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SQL | Medium | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
You have a table containing information about the time that employees have worked on a project. Write a query to find how many unique calendar days each employee worked. Order your query by the Example: An employee worked on two projects, and recorded their time like this:
The number of unique calendar days is therefore 7. SchemaInput:
Output:
ExampleInput:
Output:
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Statistics | Easy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
Statistics | Easy | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
SQL | Easy | |
Machine Learning | Medium | |
Statistics | Medium | |
SQL | Hard | |
Machine Learning | Medium | |
Python | Easy | |
Deep Learning | Hard | |
SQL | Medium | |
Statistics | Easy | |
Machine Learning | Hard |
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