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i've completed SQL in solo learn. I want to become advance in SQL. any suggestion?
2 Answers
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You can do for example tests and certificat here:
https://www.w3schools.com/sql/
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Some of the useful websites for advanced SQL:
SQLCourse: Beginner & Advanced Interactive SQL Tutorials
SQLCourse.com is an interactive online training course for SQL beginners and advanced SQL programmers. Learn with our unique SQL tutorials today.
https://www.sqlcourse.com/