其中,data.*是一张表，然后把其他表中的字段也加到sal_data的游标中

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cursor sal_data(cp_center_temp_id varchar2) is
      select data.*,
             post.id               emp_post_id,
             doc.Salary_Tax_Bd     sa_tax_bd,
             batch.bill_year_month bill_year_month,
             batch.id              batch_id,
             post.emp_id           employee_id
        from sa_salary_data data
        left join sa_salary_batch batch
          on data.sa_batch_id = batch.id
        left join sa_salary_document doc
          on data.sa_doc_id = doc.id
        left join pb_emp_post post
          on doc.emp_post_id = post.id
        left join pb_send send
          on post.send_id = send.id
       where send.cost_center_id = cp_center_temp_id;

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使用此游标：

声明一个此游标类型的变量:

salary_data_temp sal_data%rowtype;

然后编译此游标

open sal_data(center_temp.id);
        loop
          fetch sal_data
            into salary_data_temp;
          exit when sal_data%notfound;
--TODO
end loop;
colse sal_data;

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