Error ORA-03127: no new operations allowed until the active operation ends

Question

I have a function that retrieves some values for all the cutomers
with all different types,and then concatenates all those values
(format in XML ) and return the concatenated value as clob.
vClob1 & vAllClob is Clob type.
My function:
for recCustomer in CustCursor
begin
cust := recCustomer .name;
vClob1 := ...;--(manipulated using select statement)
for recType in TypeCursor
begin
typ := recType.value;
vClob1 := vClob1 || ...;--(manipulated using select statement)
end
vAllClob := vAllClob || vClob1;
vClob1:='';
end
executing ,it gives an error
ORA-03127: no new operations allowed until the active operation ends
if the statement
vAllClob := vAllClob || vClob1;
is commented it does not give an error
The output of each vClob1 is got correctly as expected
value of vClob1 when loop executed first time =
{color:#c0c0c0}{color:#999999}<WorkOrder>
<CUSTOMER>ABC</CUSTOMER>
<NOOFWORKORDERS type="Planned">10</NOOFWORKORDERS>
<NOOFWORKORDERS type="Preventive">22</NOOFWORKORDERS>
<NOOFWORKORDERS type="Corrective">9</NOOFWORKORDERS>
<NOOFWORKORDERS type="Implementation">5</NOOFWORKORDERS>
<NOOFWORKORDERS type="Provisioning">46</NOOFWORKORDERS>
</WorkOrder>{color}
{color}
at the next loop
vClob1 =
{color:#999999}<WorkOrder>
<CUSTOMER>XYZ</CUSTOMER>
<NOOFWORKORDERS type="Planned">17</NOOFWORKORDERS>
<NOOFWORKORDERS type="Preventive">20</NOOFWORKORDERS>
<NOOFWORKORDERS type="Corrective">37</NOOFWORKORDERS>
<NOOFWORKORDERS type="Implementation">80</NOOFWORKORDERS>
<NOOFWORKORDERS type="Provisioning">20</NOOFWORKORDERS>
</WorkOrder>
{color}
and so on...
My actual requirement is to concatenate all vClob1 values into a variable to pass
it the front end to use it as an XMLDocument.
Pls help.

Answer 1

Did you try the create index from sqlplus?