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Don Burleson Blog 







PLS-00642: Local Collection Types Not Allowed in SQL Statement

Expert Oracle Database Tips by Donald BurlesonMarch 7, 2015


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 it?

Answer:  To diagnose any error, you start by using the oerr utility to fully display the PLS-00642 error:

PLS-00642: Local 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 PL/SQL subprogram

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:

TYPE 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. 

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