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)

AmitDiwan

Published on 26-Sep-2019 07:02:56

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