Question
1. Explain the aggregate functions. Illustrate the use of 2 examples of aggregate functions. 2. Explain why a unique constraint is needed in general. Explain
1. Explain the aggregate functions. Illustrate the use of 2 examples of aggregate functions.
2. Explain why a unique constraint is needed in general. Explain the use of unique constraints in aggregate functions.
3. Differentiate between the group by clause and the order by clause.
4. Explain the having clause?
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1 In SQL programming aggregate functions are used to return a single value from a column in the data...
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Operations Management
Authors: R. Dan Reid, Nada R. Sanders
4th edition
9780470556702, 470325046, 470556706, 978-0470325049
