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Delete only some rows from a table based on a condition in MySQL
Let us first create a table −
mysql> create table DemoTable -> ( -> Id int, -> Name varchar(20) -> ); Query OK, 0 rows affected (0.60 sec)
Insert some records in the table using insert command:
Insert some records in the table using insert command: mysql> insert into DemoTable values(100,'Bob'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(101,'Chris'); Query OK, 1 row affected (0.19 sec) mysql> insert into DemoTable values(102,'David'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable values(103,'Sam'); Query OK, 1 row affected (0.08 sec) mysql> insert into DemoTable values(104,'Carol'); Query OK, 1 row affected (0.10 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+------+-------+ | Id | Name | +------+-------+ | 100 | Bob | | 101 | Chris | | 102 | David | | 103 | Sam | | 104 | Carol | +------+-------+ 5 rows in set (0.00 sec)
Following is the query to delete only limited rows from a table −
mysql> delete from DemoTable -> where Id > 102; Query OK, 2 rows affected (0.10 sec)
Let us check the table records once again −
mysql> select *from DemoTable;
This will produce the following output −
+------+-------+ | Id | Name | +------+-------+ | 100 | Bob | | 101 | Chris | | 102 | David | +------+-------+ 3 rows in set (0.00 sec)
Updated on: 18-Dec-2019
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