The query groups the DEPARTMENT_ID, based on PROF_NUM count's that are more than 1 MYSQL [jsohn6]> SELECT COUNT ( PROF_NUM) , DEPARTMENT_ID ->FROM COURSE ->GROUP BY DEPARTMENT_ID -> HAVING COUNT ( PROF_NUM) >1; COUNT (PROF_NUM) | DEPARTMENT_ID | 4 101 з | 103 2 rows in set (0.01 sec)

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A: These question answer is as follows,

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A: The query is given below with output screenshot Demo data has been used in tables

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A: Query: In general, the term query describes a question or request that is made by a user or another…

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A: Self Join:   A self join occurs when a table is linked to itself (also known as Unary…

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A: Structured Query Language, abbreviated as SQL, which usually refers to the one it is a…

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A: SQL is a structured query language, that's is used to extract and manipulate the data from the…

Q: Write a query to display the employee number, last name, email address, title, and department name…

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A: According to the information given:- We have to write a query on the basic of mention need.

Single Table

In a database management system, a single table is designed to obtain data of heterogeneous items. A single-table design with DynamoDB resolves the issue of raising multiple requests for the relevant data of an entity.