Use NOT IN, OR and IS NULL in the same MySQL query to display filtered records

MySQLMySQLi Database

Let us first create a table −

mysql> create table DemoTable793(
   StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY,
   StudentName varchar(100)
);
Query OK, 0 rows affected (0.81 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable793(StudentName) values('Adam');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable793(StudentName) values('Bob');
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable793(StudentName) values(null);
Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable793(StudentName) values('Chris');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable793(StudentName) values('Robert');
Query OK, 1 row affected (1.03 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable793;

This will produce the following output −

+-----------+-------------+
| StudentId | StudentName |
+-----------+-------------+
|         1 | Adam        |
|         2 | Bob         |
|         3 | NULL        |
|         4 | Chris       |
|         5 | Robert      |
+-----------+-------------+
5 rows in set (0.00 sec)

Following is the query to use NOT IN, OR and IS NULL in the same MySQL query −

mysql> select *from DemoTable793 where StudentName NOT IN('Chris') OR StudentName IS NULL;

This will produce the following output −

+-----------+-------------+
| StudentId | StudentName |
+-----------+-------------+
|         1 | Adam        |
|         2 | Bob         |
|         3 | NULL        |
|         5 | Robert      |
+-----------+-------------+
4 rows in set (0.00 sec)
raja
Published on 26-Aug-2019 07:41:36
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