see not null sql code example
Example 1: find value if not null in sql
SELECT FIRST_NAME , MANAGER_ID
FROM EMPLOYEES
WHERE MANAGER_ID IS NOT NULL ;Example 2: sql not null
SELECT column_name FROM table_name
WHERE column_name IS NOT NULL;SELECT FIRST_NAME , MANAGER_ID
FROM EMPLOYEES
WHERE MANAGER_ID IS NOT NULL ;SELECT column_name FROM table_name
WHERE column_name IS NOT NULL;