Question: I am
defining an array in my PL/SQL and I am getting this PLS-00642 error
in my PL/SQL when I try to reference the array in my SQL:
PLS-00642: local collection types not allowed in SQL statement
Can you tell me why I am getting this PLS-00642 and help me avoid
Answer: To diagnose any error, you start by using the
to fully display the PLS-00642 error:
collection types not allowed in SQL statements
Cause: A locally-defined (i.e. not schema level) collection type was
used in a SQL statement. The type must be defined in a schema to be
accepted in a SQL statement.
Action: Define the collection type in your schema, not inside a
In sum, the PLS-00642 error you're getting is
telling you that you have a locally-defined collection type in your
SQL statement. It appears that the issue is with the array in your
PL/SQL where you defined the TYPE, as below:
title_collection IS TABLE OF VARCHAR2(60);
To avoid the PLS-00642, the collection will need to be defined at the schema
level; therefore, you would need to define the varray table as a real
table, using Oracle DDL with the CREATE TYPE syntax.
Get the Complete
Oracle SQL Tuning Information
The landmark book
SQL Tuning The Definitive Reference" is
filled with valuable information on Oracle SQL Tuning.
This book includes scripts and tools to hypercharge Oracle 11g
performance and you can
for 30% off directly from the publisher.