How to clear this type of run time error

Question

good eve,
i am migrating sql server procedures to oracle procedures
i am trying to execute char(39) function in plsql is the following way correct and if this way is correct i am getting
run time error like
create or replace
procedure Sel_subgroup(key in varchar2,gradename in varchar2)
as
gid res_grades.grade_id%type;
gn res_grades.gradename_en%type;
stid sub_topics.subtopic_id%type;
stn sub_topics.subtopicname_en%type;
cc res_grades.countrycode%type;
estid exsub_topics.exsub_topics_id%type;
estn exsub_topics.exsubtopicname_en%type;
d_stmt varchar2(500);
type ref_cursor is ref cursor;
rc ref_cursor;
begin
d_stmt :='SELECT RG.Grade_ID,RG.Gradename_'||key||',ST.SubTopic_ID,ST.SubTopicname_'||key||', RG.CountryCode,
Est.ExSub_Topics_ID, Est.ExSubTopicname_'||key||' from
Res_Grades RG INNER JOIN Sub_Topics ST ON RG.Grade_Id= ST.Grade_ID
INNER JOIN ExSub_Topics Est ON ST.SubTopic_ID = Est.Sub_Topics_Id
Where Gradename_'||key||' = '''||gradename||'''';
open rc for d_stmt;
loop
fetch rc into gid,gn,stid,stn,cc,estid,estn;
if rc%found then
dbms_output.put_line(gid||gn||stid||stn||cc||estid||estn);
else
exit;
end if;
end loop;
close rc;
commit;
end Sel_subgroup;the out screen result is:
Connecting to the database rasool.
Process exited.
Disconnecting from the database rasool.can u please help me,
thanking you,
prakash

Answer 1

to samb,
It doesn't look like you are getting a runtime error. Is it possible your query is returning no rows?
If you are sure your query should be returning rows, you probably need to check if DBMS_OUTPUT is enabled in SQL Developer (View menu I think).my query is returning a row
where where 123=key and 'FUBAR'=gradename?
If so, you want 3 single-quotes at the end of the string, not 4:
You sure? I think 4 is correct.i am sure 4 is correct i have tried as per jeenesh said
to jeenesh
SQL> ed
Wrote file afiedt.buf
  1  create or replace
  2  procedure Sel_subgroup(key in varchar2,gradename in varchar2)
  3  as
  4   d_stmt varchar2(500);
  5  begin
  6  d_stmt :='SELECT RG.Grade_ID,RG.Gradename_'||key||',ST.SubTopic_ID,ST.SubTopicname_'||key||', RG.CountryCode,
  7  Est.ExSub_Topics_ID, Est.ExSubTopicname_'||key||' from
  8  Res_Grades RG INNER JOIN Sub_Topics ST ON RG.Grade_Id= ST.Grade_ID
  9  INNER JOIN ExSub_Topics Est ON ST.SubTopic_ID = Est.Sub_Topics_Id
10  Where Gradename_'||key||' = '''||gradename||'''';
11  dbms_output.put_line(d_stmt);
12* end Sel_subgroup;
SQL> /
Procedure created.
SQL> set serverout on
SQL> exec Sel_subgroup('1','TEST');
SELECT RG.Grade_ID,RG.Gradename_1,ST.SubTopic_ID,ST.SubTopicname_1,
RG.CountryCode,
Est.ExSub_Topics_ID, Est.ExSubTopicname_1 from
Res_Grades RG
INNER JOIN Sub_Topics ST ON RG.Grade_Id= ST.Grade_ID
INNER JOIN ExSub_Topics
Est ON ST.SubTopic_ID = Est.Sub_Topics_Id
Where Gradename_1 = 'TEST'
PL/SQL procedure successfully completed.i have also executed your code sir it is executing.in my coding,i found that the part of dbms_output.put_line in my ref cursor loop is not displaying me the print.
to karthick arp
Did enable serveroutput?yes i have enabled it with buffer size 200000
to
Billy Verreynne     & Frank Kulash
as per you said sir i have done and got an error my code as follows
SQL> var rc refcursor
SQL> var key varchar2(2)
SQL> var gradename varchar2(30)
SQL> exec :key :='EN';
PL/SQL procedure successfully completed.
SQL> exec :gradename :='PRE-K';
PL/SQL procedure successfully completed.
SQL> begin sel_subgroup(key => :key, gradename => :gradename,rc => :rc); end;
  2  /
PL/SQL procedure successfully completed.
SQL> print rc
ERROR:
ORA-24338: statement handle not executed
SP2-0625: Error printing variable "rc"how to handle this error sir