MySQL - Null Values
MySQL NULL Condition is used to test for a NULL value in a SELECT, INSERT, UPDATE, or DELETE statement.
SYNTAX FOR IS NULL :
SELECT column_names
FROM table_name
WHERE column_name IS NULL;
EXAMPLE :
SELECT StudentName, ParentName, Address FROM studentrecord
WHERE Address IS NULL;
StudentName | ParentName | Address |
---|---|---|
- | - | - |
SYNTAX FOR IS NOT NULL :
SELECT column_names
FROM table_name
WHERE column_name IS NOT NULL;
EXAMPLE :
SELECT StudentName, ParentName, Address FROM Infostudents
WHERE Address IS NOT NULL;
StudentName | ParentName | Address |
---|---|---|
Anasya | Jagannath | Banjara Hills |
Shivanatini | Praveen | Hayath Nagar |
MySQL - Grant_ Revoke Privilege
posted on 2019-11-26 23:15:04 - mysql Tutorials