Weird APEX error when refreshing report

Question

Hi All,
I am trying to refresh a report with dynamic action. And getting the following errors:
{"dialog":{"uv":true,"row":[{"V":"Widget Failure
ORA-20876: Stop APEX Engine,
classic_report"}]}}
I have identified the problematic part. I have a multi-select select list and my query goes like this:
select o.order_id, s.salesrep_name
from ml_orders o, ml_order_salesrep_mapping m
where m.order_id(+) = o.order_Id
and case when :P22_SALESREP is null then 1
when :P22_SALESREP IS NOT NULL and m.salesrep_id in (:P22_SALESREP) then 1
else 0
end = 1Previously this line: when :P22_SALESREP IS NOT NULL and m.salesrep_id in (:P22_SALESREP) then 1 used to be just when :P22_SALESREP IS NOT NULL and m.salesrep_id i=:P22_SALESREP then 1 and it would work. But have requirement to make this select list multi-select.
Any help appreciated.
Using Apex 4.2, classic report with refresh by dynamic action upon button click.

Answer 1

William Wallace wrote:
I am trying to refresh a report with dynamic action. And getting the following errors:
{"dialog":{"uv":true,"row":[{"V":"Widget Failure
ORA-20876: Stop APEX Engine,
classic_report"}]}}
I have identified the problematic part. I have a multi-select select list and my query goes like this:
select o.order_id, s.salesrep_name
from ml_orders o, ml_order_salesrep_mapping m
where m.order_id(+) = o.order_Id
and case when :P22_SALESREP is null then 1
when :P22_SALESREP IS NOT NULL and m.salesrep_id in (:P22_SALESREP) then 1
else 0
end = 1Previously this line: when :P22_SALESREP IS NOT NULL and m.salesrep_id in (:P22_SALESREP) then 1 used to be just when :P22_SALESREP IS NOT NULL and m.salesrep_id i=:P22_SALESREP then 1 and it would work. But have requirement to make this select list multi-select.It doesn't work like that. In
select * from table where columnvalue in (7788, 7839, 7876)<tt>(7788, 7839, 7876)</tt> is an expression list and the predicate is evaluated as a membership condition.
In
select * from table where columnvalue in (:P1_X)<tt>:P1_X</tt> is a scalar string, incapable of containing multiple values.
See +varying elements in IN list+ on Ask Tom, and +emulating string-to-table functionality using sql+ for potential solutions.
In an APEX standard report, use a PL/SQL function body returning an SQL query report source with lexical substitution to produce a "varying IN-list":
return 'select * from emp where empno in (' || :P1_X || ')';where <tt>P1_X</tt> has been sanitized for SQL injection and string values are properly quoted if necessary.