Dynamic cursors in PL/SQL


	Dynamic cursors in PL/SQL

happydede

9-23-2008 8:28 AM

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://www.clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/f3b4bd32-3b90-4597-a0b8-8e557712280d/D6BC183B-BD79-4342-947C-B4E60431943F/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.adp-gmbh.ch/ora/plsql/cursors/dynamic.html" href="http://www.adp-gmbh.ch/ora/plsql/cursors/dynamic.html" style="font-size: 11px;">www.adp-gmbh.ch</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.adp-gmbh.ch/ora/plsql/cursors/dynamic.html"><H1>Dynamic cursors in PL/SQL</H1></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.adp-gmbh.ch/ora/plsql/cursors/dynamic.html"><TR valign="top"><TD><H1>amic cursors in PL/SQL</H1></TD></TR><TR valign="top"><TD></TD><TD></TD><TD><DIV><PRE class="code">create or replace package dynamic_cursor is
type t_crs is <A href="http://www.adp-gmbh.ch/ora/plsql/cursors/ref_cursors.html">ref cursor</A>;
procedure dyn_sel (
       tab_name   in varchar2,
       field_name in varchar2,
       val        in varchar2,
       crs        in out t_crs);
procedure openCursor;
end dynamic_cursor;             
/
create or replace package body dynamic_cursor as
   procedure dyn_sel (
          tab_name   in varchar2,
          field_name in varchar2,
          val        in varchar2,
          crs        in out t_crs)
is
     stmt varchar2(100);
   begin
     stmt := 'select * from ' || tab_name || ' where ' || field_name || ' = :1 ';
open crs for stmt using val;
   end dyn_sel;
procedure openCursor is
     tc t_crs;
     f1 varchar2(50);
     f2 varchar2(50);
   begin
     dyn_sel('test_for_cursor','a','two',tc);
     loop
       fetch tc into f1,f2;
       exit when tc%notfound;
       dbms_output.put_line(f2);
     end loop;
   end openCursor;
end dynamic_cursor;     
/
begin
  dynamic_cursor.openCursor;
end;
/
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