| select logic [message #2171] |
Tue, 25 June 2002 23:02  |
chphang
Messages: 3
Registered: June 2002
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Junior Member |
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hi! i need to do the following:
Cursor a_cur is
Select Field_A, Field_B from Table1;
a_rec a_cur%rowtype;
begin
if the a_cur%rowcount ='0' then
htp.p('No record')
exit (i.e. don't print anything else)
else
htp.p('The following are records available');
print in loop
htp.p(a_rec.fieldA);
htp.p(a_rec.fieldB);
htp.p('next');
end if;
how do i achieve the above?
thx.
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| Re: select logic [message #2172 is a reply to message #2171] |
Wed, 26 June 2002 00:37  |
Balaji
Messages: 102
Registered: October 2000
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Senior Member |
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Declare
cursor cur1 is select empno,ename from emp;
empdet cur1%rowtype;
exc1 exception;
begin
open cur1;
loop
fetch cur1 into empdet;
dbms_output.put_line(empdet.empno);
dbms_output.put_line(empdet.ename);
exit when cur1%notfound;
end loop;
if cur1%rowcount=0 then
raise exc1;
else
null;
end if;
close cur1;
exception
when exc1 then
dbms_output.put_line('No Data Found');
end;
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| Re: select logic [message #2175 is a reply to message #2171] |
Wed, 26 June 2002 01:13 |
chphang
Messages: 3
Registered: June 2002
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Junior Member |
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hi! thx for the prompt reply.
what if i need something like:
if no record, just print "No record found",
else
print table header (no need to loop)
loop print record details.
will i need 2 loops then? thx.
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| Re: select logic [message #2178 is a reply to message #2171] |
Wed, 26 June 2002 03:32 |
Balaji
Messages: 102
Registered: October 2000
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Senior Member |
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what is tableheader?. is it the table name or the column names ?
try this
Declare
cursor cur1 is select empno,ename from emp;
empdet cur1%rowtype;
exc1 exception;
begin
dbms_output.put_line(' Emp Table ');
dbms_output.put_line('EmpNO ' || ' Emp Name');
dbms_output.put_line('-----------------------------------------------');
open cur1;
loop
fetch cur1 into empdet;
dbms_output.put_line(empdet.empno);
dbms_output.put_line(empdet.ename);
exit when cur1%notfound;
end loop;
if cur1%rowcount=0 then
raise exc1;
else
null;
end if;
close cur1;
exception
when exc1 then
dbms_output.put_line('No Data Found');
end;
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| Re: select logic [message #2191 is a reply to message #2178] |
Wed, 26 June 2002 19:22 |
chphang
Messages: 3
Registered: June 2002
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Junior Member |
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hi! yes, it's the columns name.
so if there's no record, just print
"No record"
else print
Dept_Name Dept_Tel (print once only)
ABC 123 (these are records retrieved)
DEF 456
GHI 789
"End of records"
thx. sorry for the trouble, i'm very confused by the loops.
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