[SOLVED] Gathering Schema Statistics from Form Builder

Question

Hi
these are my database and Forms versions:
Forms [32 Bit] Version 6.0.8.8.0 (Production)
Oracle9i Enterprise Edition Release 9.0.1.1.1 - Production
PL/SQL Version 8.0.6.0.0 (Production)
I would like to build a form with a push button which when clicked will gather schema statistics using procedures from the DBMS_STATS package ie. using the command:
DBMS_STATS.gather_schema_stats (ownname => 'DLIC', cascade => true, estimate_percent => 99.99);
But when this line is added to the PLSQL code for the push button, i get the following error:
Error 0 at line 0, column 0
ORA-00600: internal error code, arguments:[17003], [59630960], [911], [1], [], [], [], []
Can any one please tell me what is the problem here?
Thank You.
Message was edited by:
One

Answer 1

Thanks Christian the W1zard and Francois D for your help! The solution IS, as you have suggested, to include the call to the DBMS_STATS procedure in a PLSQL block ie. using BEGIN ... END;
and the whole in a FORMS_DDL statement.
For any one facing the same problem, here is the entire solution:
--Code in push-button When-Button-Pressed trigger.
DECLARE
     STATEMENT_TO_EXECUTE VARCHAR2(200);
     OWN_NAME VARCHAR2(4);
     CASCADE_PARAM VARCHAR2(4);
     EST_PC VARCHAR2(5);
BEGIN
     OWN_NAME := 'DLIC';
     CASCADE_PARAM := 'TRUE';
     EST_PC := '10.99';
     STATEMENT_TO_EXECUTE := 'DBMS_STATS.gather_schema_stats(ownname=>'||''''||OWN_NAME||''''||',cascade =>'||CASCADE_PARAM||',estimate_percent=>'||EST_PC||')';
     FORMS_DDL('BEGIN '||STATEMENT_TO_EXECUTE||'; END;');
END;
Note that all parameters passed to the DBMS_STATS procedure is stored in a bind variable. Also, note that the parameter that is of type VARCHAR2, in this case DLIC or Ownname is preceded and succeded by '''' or 4 single-quotes.
PS:
Would be very helpful if someone explained why 4 single-quotes. I found this in another post in the OTN forum, but not quite sure of the theory behind it.
Thank You.