首页 > 数据库 > Oracle > OCP 1Z0 051 159
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)来自 “ ITPUB博客 ” ,链接:https://blog.itpub.net/17013648/viewspace-1171406/ ,如需转载,请注明出处,否则将追究法律责任。