How to fix the Oracle error PLS-00566: type name “string” cannot be constrained?

In this post, you’ll learn more about the Oracle ErrorPLS-00566: type name “string” cannot be constrained with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PLS-00566: type name “string” cannot be constrained

Reason for the Error PLS-00566: type name “string” cannot be constrained

A lob, date, boolean, rowid, or mlslabel type was constrained with a length specification. For example: X BLOB(5);

How to fix the Error PLS-00566: type name “string” cannot be constrained ?

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

Remove the constraint.