Are you familiar with the basics of SQL and can you write simple queries?

Yes, I am familiar with the basics of SQL and can write simple queries. For example, to select all records from the users table where age is greater than 18, you can use the query:

SELECT * FROM users WHERE age > 18;

I also know how to use basic operations: JOIN for combining tables, GROUP BY for grouping data, ORDER BY for sorting, and aggregate functions (SUM, COUNT, AVG).