How to fix the Oracle error ORA-01795: maximum number of expressions in a list is 1000?

In this post, you’ll learn more about the Oracle ErrorORA-01795: maximum number of expressions in a list is 1000 with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01795: maximum number of expressions in a list is 1000

Reason for the Error ORA-01795: maximum number of expressions in a list is 1000

Number of expressions in the query exceeded than 1000. Note that unused column/expressions are also counted Maximum number of expressions that are allowed are 1000.

How to fix the Error ORA-01795: maximum number of expressions in a list is 1000 ?

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

Reduce the number of expressions in the list and resubmit.