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OCP 1Z0 051 159

原创 Oracle 作者:LuiseDalian 时间:2014-05-28 08:56:30 0 删除 编辑
(159)View the Exhibit and examine the structure of the CUSTOMERS table.

NEW_CUSTOMERS is a new table with the columns CUST_ID, CUST_NAME and CUST_CITY that have the same data types and size as the corresponding columns in the CUSTOMERS table. Evaluate the following INSERT statement:

INSERT INTO new_customers (cust_id, cust_name, cust_city)

VALUES(SELECT cust_id,cust_first_name || cust_last_name,cust_city FROM customers WHERE cust_id > 23004);

The INSERT statement fails when executed. What could be the reason?



A. The VALUES clause cannot be used in an INSERT with a subquery.

B. Column names in the NEW_CUSTOMERS and CUSTOMERS tables do not match.

C. The WHERE clause cannot be used in a subquery embedded in an INSERT statement.

D. The total number of columns in the NEW_CUSTOMERS table does not match the total number of columns in the CUSTOMERS table.

答案:(A)

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