How can SQL be used in data analysis?
SQL, or Structured Query Language, is essential for querying and managing data in databases, making it invaluable for data analysis.
What are some common SQL commands used in data analysis?
Common SQL commands include SELECT, JOIN, GROUP BY, and WHERE, which help in retrieving and organizing data effectively.
Can you give me an example of a SQL query for data analysis?
Sure! A simple example is: SELECT AVG(salary) FROM employees WHERE department = 'Sales';
This calculates the average salary in the Sales department.
How does SQL compare to other data analysis tools?
SQL is more focused on data retrieval and manipulation, while tools like Python or R offer broader statistical analysis capabilities.
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