How to fix the Oracle error PLS-00570: different number of columns in the multiset and cast expressions?

In this post, you’ll learn more about the Oracle ErrorPLS-00570: different number of columns in the multiset and cast expressions with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PLS-00570: different number of columns in the multiset and cast expressions

Reason for the Error PLS-00570: different number of columns in the multiset and cast expressions

Number of columns in the collection returned by MULTISET and the number of columns for the CAST type don’t match. For example: create type tab_obj as object (n number); create type tab1 as table of tab_obj; create table tab2 (col1 number, col2 number); select CAST(MULTISET(select col1, col2 from tab2) as tab1) from tab2;

How to fix the Error PLS-00570: different number of columns in the multiset and cast expressions ?

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

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