Oracle / PLSQL: ORA-00908 Error Message

Learn the cause and how to resolve the ORA-00908 error message in Oracle.

Description

When you encounter an ORA-00908 error, the following error message will appear:

• ORA-00908: missing NULL keyword

Cause

You tried to execute a SQL statement, but you missed entering the NULL keyword.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

This error can occur if you try to execute a SQL statement using the IS NULL condition or IS NOT NULL condition, but miss entering the NULL keyword.

For example, if you tried executing the following statement:

SELECT *
FROM suppliers
WHERE supplier_name IS NOT;

You would receive the following error message:

You could correct this error, by modifying the statement as follows:

SELECT * 
FROM suppliers
WHERE supplier_name IS NOT NULL;