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Use NOT IN, OR and IS NULL in the same MySQL query to display filtered records
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)
Updated on: 26-Aug-2019
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