SQL访问顾问SAA(SQL Access Advisor)理论部分一：创建任务

 

         任务是你所定义需要分析什么以及分析结果将存储在什么地方。用户可以创建任意数量的任务，每个 有特定的设置。都是基于相同指导任务模型并且共享相同档案库的。使用dbms_advisor.create_task 过程创建任务的语法如下:

DBMS_ADVISOR.CREATE_TASK (
advisor_name IN VARCHAR2,
task_id OUT NUMBER,
task_name IN OUT VARCHAR2,
task_desc IN VARCHAR2 := NULL,
template IN VARCHAR2 := NULL,
is_template IN VARCHAR2 := 'FALSE',
how_created IN VARCHAR2 := NULL);



DBMS_ADVISOR.CREATE_TASK (
advisor_name IN VARCHAR2,
task_name IN VARCHAR2,
task_desc IN VARCHAR2 := NULL,
template IN VARCHAR2 := NULL,
is_template IN VARCHAR2 := 'FALSE',
how_created IN VARCHAR2 := NULL);

下面是创建任务的一示例:

SQL> variable task_id number;
SQL> variable task_name varchar2(255);
SQL> execute :task_name:='JYTASK';

PL/SQL procedure successfully completed
task_name
---------
JYTASK
SQL> execute dbms_advisor.create_task('SQL Access Advisor',:task_id,:task_name);

PL/SQL procedure successfully completed
task_id
---------
45354
task_name
---------
JYTASK