update方法好.sql

来自「地方政府非税收入管理程序。powerbulider8开发。」· SQL 代码 · 共 29 行

/*UPDATE titles
   SET ytd_sales = titles.ytd_sales + sales.qty
      FROM titles, sales
         WHERE titles.title_id = sales.title_id
         AND sales.ord_date = (SELECT MAX(sales.ord_date) FROM sales)


UPDATE titles
   SET ytd_sales = 
      (SELECT SUM(qty)
         FROM sales
            WHERE sales.title_id = titles.title_id
            AND sales.ord_date IN (SELECT MAX(ord_date) FROM sales))
   FROM titles, sales
*/


update t_print1 set lj_month=null,lj_year=null

update t_print1
set lj_month = (select sum(money) from t_mx 
    where t_print1.dwdm=t_mx.dwdm and t_print1.sfdm=t_mx.sfdm and t_mx.IN_Time>='20060601')
from t_print1,t_mx

update t_print1
set lj_year = (select sum(money) from t_mx 
	where t_print1.dwdm=t_mx.dwdm and t_print1.sfdm=t_mx.sfdm) 
from t_print1,t_mx