sql not null
SELECT column_name FROM table_name
WHERE column_name IS NOT NULL;sql not null
SELECT column_name FROM table_name
WHERE column_name IS NOT NULL;sql is not null
SELECT * FROM my_table WHERE my_column IS NOT NULL;sql is not null
The reverse of NULL. Tests for values that aren’t empty / NULL
"Tests for empty (NULL) values.
Example: Returns users that haven’t given a contact number.
SELECT * FROM users
WHERE contact_number IS NULL;"not null
SELECT NVL(emp_id,001)emp_id,emp_name FROM employee_details;Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
