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单选题
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.


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更多 “单选题Evaluate the following code:   SQLVARIABLE task_name VARCHAR2(255); SQLVARIABLE sql_stmt VARCHAR2(4000); SQLBEGIN :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.” 相关考题
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