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Subquery to exclude a particular row in MySQL
Let us first create a table −
mysql> create table DemoTable -> ( -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> Name varchar(100), -> Age int -> ); Query OK, 0 rows affected (0.87 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable(Name,Age) values('John',21);
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable(Name,Age) values('Carol',22);
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable(Name,Age) values('David',23);
Query OK, 1 row affected (0.54 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
Output
This will produce the following output −
+----+-------+------+ | Id | Name | Age | +----+-------+------+ | 1 | John | 21 | | 2 | Carol | 22 | | 3 | David | 23 | +----+-------+------+ 3 rows in set (0.00 sec)
Here is the subquery excluding particular row, with Name Carol −
mysql> select *from DemoTable -> where Name not in (select Name from DemoTable where Name='Carol' -> );
Output
This will produce the following output −
+----+-------+------+ | Id | Name | Age | +----+-------+------+ | 1 | John | 21 | | 3 | David | 23 | +----+-------+------+ 2 rows in set (0.00 sec)
Updated on: 30-Jun-2020
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