OO4O Vs ADO ?

Question

Hi
I am planning to use OO4O for my application. But, since it doesnt support Crystal reports, I am forced to create two sessions for each user(one for OO4O-appn. and other for ADO-Crystal Report) currently logged in my application.
Is there any other solution, to address my problem. Otherwise, I have to stick with this (dirty...!!) method.

Answer 1

Global temporary tables only have session-level scope. That is, if I insert a bunch of rows in session 1, session 2 won't be able to read those rows. Crystal Reports won't be able to see changes made to a GTT by your OO4O code.
Create & populate a temporary table in one session:
scott@jcave > create global temporary table temp2 (
  2    col1 number )
  3  on commit preserve rows;
Table created.
Elapsed: 00:00:00.00
scott@jcave > insert into temp2 values (3);
1 row created.
Elapsed: 00:00:00.00
scott@jcave > insert into temp2 values (4);
1 row created.
Elapsed: 00:00:00.00
scott@jcave > insert into temp2 values (5);
1 row created.
Elapsed: 00:00:00.00
scott@jcave > commit;
Commit complete.
Elapsed: 00:00:00.00
scott@jcave > select * from temp2;
      COL1
         3
         4
         5
Elapsed: 00:00:00.00Now try to read from the temporary table in another session:
scott@jcave > select * from temp2;
no rows selected
Elapsed: 00:00:00.00I will defer to someone with more experience with Crystal Reports to answer the second part of your question. It's been a while since I've used any of their controls in an application.
Justin
Distributed Database Consulting, Inc.
www.ddbcinc.com/askDDBC