（40）Evaluate the following code:

SQL>VARIABLE task_name VARCHAR2(255);

SQL>VARIABLE sql_stmt VARCHAR2(4000);

SQL>BEGIN

:sql_stmt := 'SELECT COUNT(*) FROM customers WHERE cust_state_province=''CA''';

:task_name := 'MY_QUICKTUNE_TASK';

DBMS_ADVISOR.QUICK_TUNE(DBMS_ADVISOR.SQLACCESS_ADVISOR, :task_name, :sql_stmt);

END;

What is the outcome of this block of code?

A. It creates a task and workload,and executes the task.

B. It creates a task and workload but does not execute the task.

C. It produces an error because a template has not been created.

D. It produces an error because the SQL Tuning Set has not been created.

答案：（A）

解析：

参考DBMS_ADVISOR.QUICK_TUNE过程