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MySQL query to delete table rows if string in cell is matched
Let us first create a table −
mysql> create table DemoTable ( Id int NOT NULL AUTO_INCREMENT PRIMARY KEY, Name varchar(100) ); Query OK, 0 rows affected (0.55 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable(Name) values('John Smith');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable(Name) values('Carol Taylor');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable(Name) values('John Doe');
Query OK, 1 row affected (0.20 sec)
mysql> insert into DemoTable(Name) values('Chris Brown');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable(Name) values('John Brown');
Query OK, 1 row affected (0.19 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
This will produce the following output −
+----+--------------+ | Id | Name | +----+--------------+ | 1 | John Smith | | 2 | Carol Taylor | | 3 | John Doe | | 4 | Chris Brown | | 5 | John Brown | +----+--------------+ 5 rows in set (0.00 sec)
Following is the query to delete table rows if the string in a cell is matched −
mysql> delete from DemoTable where Name like '%ohn%'; Query OK, 3 rows affected (0.16 sec)
Let us check the table records once again −
mysql> select *from DemoTable;
This will produce the following output −
+----+--------------+ | Id | Name | +----+--------------+ | 2 | Carol Taylor | | 4 | Chris Brown | +----+--------------+ 2 rows in set (0.00 sec)
Updated on: 25-Sep-2019
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