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Posted by / 30-Apr-2016 05:42

If the bulk operation was altered to reference the ID column within the collection, the following compilation error would be produced.LINE/COL ERROR -------- ----------------------------------------------------------- 36/5 PL/SQL: SQL Statement ignored 38/18 PL/SQL: ORA-22806: not an object or REF 38/18 PLS-00382: expression is of wrong type 38/18 PLS-00436: implementation restriction: cannot reference fields of BULK In-BIND table of records Before running the script make sure the FORALL_TEST table is populated using the insert_script or there will be no records to update.The update_forall_8script shows how this operation would be coded prior to Oracle9i Release 2.

This restriction means that updates and deletes which have to reference inividual columns of the collection in the where clause are still restricted to the collection-per-column approach used in Oracle8i.

Notice the use of the ROW keyword in the bulk operation.

This keyword was introduced in Oracle9i Release 2 to allow updates using record definitions without needing to reference individual elements of the record, making bulk operations significantly simpler.

All procedural code is handled by the PL/SQL engine while all SQL is handled by the SQL statement executor, or SQL engine.

There is an overhead associated with each context switch between the two engines.

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