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SQL queries on a PostgreSQL Sample Database

4 Questions with corresponding queries

Each SQL query needs to include one or more explicit JOINs. The JOIN or JOINs should be necessary to the query. Each SQL query needs to include one or more aggregations. This could be a COUNT, AVG, SUM, or other aggregation. 2 of the 4 SQL queries need to include either a subquery OR a CTE. 1 of the 4 queries should use a Window Function. The SQL queries are well formatted and use aliases.

I'll post the 4 questions.

Kemahiran: MySQL, SQL, Pentadbiran Pangkalan Data

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Tentang Majikan:
( 1 ulasan ) Calgary, Canada

ID Projek: #20865426

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