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  1. Certification Tests

SQL (Advanced) Certificate

Giancarlo Rivas's HackerRank Certificates

Certificate: SQL (Advanced)

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Certificate: Python (Basic)

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Certificate: Problem Solving (Basic)

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Certificate: Problem Solving (Advanced)

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Certificate: C++ (Basic)

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Certificate: C (Basic)

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Certificate: C (Intermediate)

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Certificate: C (Advanced)

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Certificate: SQL (Basic)

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Certificate: SQL (Intermediate)

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Certificate: Java (Basic)

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SQL (Advanced)

It covers topics like query optimization, data modeling, Indexing, window functions, and pivots in SQL.

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