Database Adapter - Using in Clause

Question

In the Database adapter - I need to generate a Query like
Select * from employee where empid in (1,2).
empid - is a integer column
I have tried the pure sql option and generated a query like Select * from employee where empid in (#ids).
In the transformation, I am creating a comma separated string for ids and have bound it to ids variable.
The above works for a single ID but throws an binding error when multiple Id's are passed.
Whats the best way to handle 'In' Clause on a integer column? (There is no issue with string columns - multiple values can be passed)

Answer 1

You will need utility PL/SQL function for that:
create or replace type myTableType
as table of number;
create or replace function str2tbl( p_str in varchar2 ) return myTableType
as
l_str long default p_str || ',';
l_n number;
l_data myTableType := myTabletype();
begin
loop
l_n := instr( l_str, ',' );
exit when (nvl(l_n,0) = 0);
l_data.extend;
l_data( l_data.count ) :=
ltrim(rtrim(substr(l_str, 1, l_n - 1)));
l_str := substr( l_str, l_n+1 );
end loop;
return l_data;
end;
and then in Db Adapter:
Select * from employee where empid in ( select * from TABLE ( cast ( str2tbl( #ids) as myTableType ))
Hope that helps,
Adam