Oracle APEX-使用按钮将查询导出到CSV [英] Oracle APEX - Export a query into CSV using a button

问题描述

我在顶点页面上有一个按钮，该按钮应允许用户将数据(基于最终用户看不到的查询)导出到CSV文件中.

I have a button on an apex page that should allow the user to export data (based on a query not seen by the end user) into a CSV file.

如何将此按钮链接到我的查询，以便我们可以将结果导出到CSV文件?

How to link this button to my query so we can export the result into a CSV file?

谢谢

推荐答案

感谢Scott Spendolini，我使用他的链接:

Thanks to Scott Spendolini, I use his link: https://spendolini.blogspot.fr/2006/04/custom-export-to-csv.html

我只是使用查询创建了一个报告区域.添加一个按钮，将您带到我创建的空白页面.在该页面上，我添加了一个PL/SQL流程，该流程将触发"加载时-标题之前".在该流程的源代码中，我使用以下代码:

I simply create a Report Region with my query. Add a button which will get you to a blank page that I created. On that page, I added a PL/SQL process which will fire "On Load - Before Header" In the source of that process, I use this code:

begin
-- Set the MIME type
owa_util.mime_header( 'application/octet', FALSE );
-- Set the name of the file
htp.p('Content-Disposition: attachment; filename="emp.csv"');
-- Close the HTTP Header
owa_util.http_header_close;
-- Loop through all rows in EMP
for x in (select e.ename, e.empno, d.dname
from emp e, dept d where e.deptno = d.deptno
  and e.deptno like :P1_DEPTNO)
loop
 -- Print out a portion of a row,
 -- separated by commas and ended by a CR
 htp.prn(x.ename ||','|| x.empno ||','||
         x.dname || chr(13));
end loop;
-- Send an error code so that the
-- rest of the HTML does not render
htmldb_application.g_unrecoverable_error := true;
end;

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