This query does which of the following operation?
A. All attributes of instructor and teaches are selected
B. All attributes of instructor are selected on the given condition
C. All attributes of teaches are selected on given condition
D. Only the some attributes from instructed and teaches are selected
Answer:A
This query does which of the following operation?
A. All attributes of instructor and teaches are selected B. All attributes of instructor are selected on the given condition C. All attributes of teaches are selected on given condition D. Only the some attributes from instructed and teaches are selected
Explanation:The asterisk symbol “ * ” can be usedin the select clause to denote “all attributes.” 9. In SQL the spaces at the end of the string are removed by _______ function .