OCP-1Z0-新051-61题版本-29

QUESTION NO: 29

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:

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

of columns in the CUSTOMERS table

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

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

Answer: A

答案解析：

参考：159：http://blog.csdn.net/rlhua/article/details/11882289

Explanation:

Copying Rows from Another Table

Write your INSERT statement with a subquery:

Do not use the VALUES clause.

Match the number of columns in the INSERT clause to those in the subquery.

Inserts all the rows returned by the subquery in the table, sales_reps.