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Delete records from a MySQL table by excluding non-deleted records using NOT IN
Let us first create a table −
mysql> create table DemoTable ( FirstName varchar(100) ); Query OK, 0 rows affected (0.65 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values('Chris'); Query OK, 1 row affected (0.09 sec) mysql> insert into DemoTable values('Robert'); Query OK, 1 row affected (0.11 sec) mysql> insert into DemoTable values('Mike'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values('Sam'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable values('David'); Query OK, 1 row affected (0.12 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+-----------+ | FirstName | +-----------+ | Chris | | Robert | | Mike | | Sam | | David | +-----------+ 5 rows in set (0.00 sec)
Following is the query to delete records from a MySQL table by excluding non-deleted records using NOT IN −
mysql> delete from DemoTable where FirstName NOT IN('Robert', 'Mike'); Query OK, 3 rows affected (0.17 sec)
Let us check the table records once again −
mysql> select *from DemoTable;
This will produce the following output −
+-----------+ | FirstName | +-----------+ | Robert | | Mike | +-----------+ 2 rows in set (0.00 sec)
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