Can Designer handle Cascade Delete w/ Recursion?

Question

Hello,
Does anyone know if Designer client Forms have a problem doing recursive relationships set to Cascade Delete in the FK? No problem on the server side code but when we try to generate the form since changing the recursive FK to Cascade Delete we get the error:
CDG-01131 ERROR: Module <form name>: Recursion found in referential integrity rules (foreign key <FK> on table <table>)
We are using Designer 6i Patch 4.1.1 and Developer 6i_R2 Patch 7
We are planning to upgrade soon to 4.5 and patch 10.
Thank you for your input!

Answer 1

You may override getQueryHitCount on the ViewObject
and use a custom query to return the
estimatedRowCount using the right query for your
target db.But I've checked SQL92 in my connection and it seem this isn't legal syntax.
Alternatively you may provide a custom SQLBuilderImpl
extending 'SQL92SQLBuilderImpl' and provide a custom
query by overriding the method
public String getQueryHitCountSQL(RowSet rs)We've solved this case by doing the cacade delete in the database so no middle-tier logic is required.
However, this is not the end of our SQL92 problems. We're trying to get outer-joins to work using SQL92 syntax and a similar "SELECT * FROM (SELECT..." problem pops up.
See
Outer joins in non-Oracle RDBMS
Tony.