Question
Aggregation functions of SQL (sum, avg, count, max, min) are basic aspects of data warehousing. The COUNT function, when used to count the number of
Aggregation functions of SQL (sum, avg, count, max, min) are basic aspects of data warehousing.
The COUNT function, when used to count the number of students, employees, customers, etc., is stored in a database.
When the COUNT function is used incorrectly, it may produce an erroneous result. Your task:
Explain what the issue is and how it can be fixed by using the COUNT function correctly.
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Learn Mysql The Easy Way A Beginner Friendly Guide
Authors: Kiet Huynh
1st Edition
B0CNY7143T, 979-8869761545
