Question

Web应用程序包含两个页面

1.index.jsp 2.result.jsp

索引页面包含输入值，例如weeknum，sla等，用户必须填写输入值，之后查询将在结果页面中执行

这是我的数据库表

weeknum groupby images  actct   sla24   sla8    CTSUM   type
1       studio  123     8.5 5   11      16      16     short
1       studio  12      9.5 6   12      16      12     long
1       studio  154     10.5    7       13      16      short
2       studio  123     11.5    8       14      16      long
2       studio  12      12.5    9       15      16      short
2       studio  154     13.5    10      16      16      long

以下是jsp页面数据库查询（resultPage）

"<sql:query var=""retouch"" dataSource=""jdbc/imaging"">
                SELECT WEEKNUM,
                       GROUPBY,
                       SUM(IMAGES) AS IMAGES,
                       SUM(SLA24) AS SLA24,
                       ROUND(SUM(CTSUM)/SUM(IMAGES),2) AS AVGCT,
                        ROUND(SUM(SLA24)/SUM(IMAGES)*100,2) AS CTPERC 
                FROM (SELECT                                                                              
                            WEEKNUM,
                            COLUMNTYPE as groupby,
                            IMAGES,
                            ActCT,
                            IMAGES * AVGCT AS CTSUM,
                            SLA24,SLA8 
                FROM RETOUCHSUMMARY
               WHERE WEEKNUM = ?
                     <sql:param value=""${param.weeknum}"" /> )AS CT GROUP BY    
                      WEEKNUM,COLUMNTYPE;
            </sql:query>"

上面的查询工作正常，默认情况下它选择sla24列。有可能，如果用户在索引页面中选择sla8，则查询必须在sla24内选择sla8列。？

希望我解释得很好，请帮忙

Web应用程序 - 根据用户输入JSP选择不同的列

0 个答案: