How to fix the Oracle error PLS-00316: PL/SQL TABLEs must use a single index?

In this post, you’ll learn more about the Oracle ErrorPLS-00316: PL/SQL TABLEs must use a single index with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PLS-00316: PL/SQL TABLEs must use a single index

Reason for the Error PLS-00316: PL/SQL TABLEs must use a single index

In the INDEX BY clause of a PL/SQL table declaration, a composite primary key was specified. PL/SQL tables must have a simple, unnamed primary key of a binary integer or VARCHAR2 type.

How to fix the Error PLS-00316: PL/SQL TABLEs must use a single index ?

You can fix this error in Oracle by following the below steps

Use one of the supported key types in the INDEX BY clause.