Shulou(Shulou.com)06/01 Report--

View the Exhibit and examine the structure of the CUSTOMERS table.

Which two tasks would require subqueries or joins to be executed in a single statement? (Choose two.)

Observe the following table structure, which tasks require subqueries or joins in a statement

A. listing of customers who do not have a credit limit and were born before 1980

B. finding the number of customers, in each city, whose marital status is 'married'

C. finding the average credit limit of male customers residing in 'Tokyo' or 'Sydney'

D. listing of those customers whose credit limit is the same as the credit limit of customers residing in the city 'Tokyo'

E. finding the number of customers, in each city, whose credit limit is more than the average credit limit of all the customers

A. select * from CUSTOMERS where cust_credit_limit=0 and cust_year_of_birth (select avg(customer_credit_limit) from CUSTOMERS ) group by customer_city;

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