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MySQL query to remove string from a column with values EMP1, EMP2, EMP3, etc.
To remove string from the values EMO1, EMP2, etc., you need to use RIGHT() along with LENGTH(). Let us first create a table −
mysql> create table DemoTable1540 -> ( -> EmployeeCode varchar(20) -> ); Query OK, 0 rows affected (0.39 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1540 values('EMP9');
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable1540 values('EMP4');
Query OK, 1 row affected (0.12 sec)
mysql> insert into DemoTable1540 values('EMP8');
Query OK, 1 row affected (0.23 sec)
mysql> insert into DemoTable1540 values('EMP6');
Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −
mysql> select * from DemoTable1540;
This will produce the following output −
+--------------+ | EmployeeCode | +--------------+ | EMP9 | | EMP4 | | EMP8 | | EMP6 | +--------------+ 4 rows in set (0.00 sec)
Here is the query to remove string from column values −
mysql> select right(EmployeeCode,length(EmployeeCode)-3) as onlyDigit from DemoTable1540;
This will produce the following output −
+-----------+ | onlyDigit | +-----------+ | 9 | | 4 | | 8 | | 6 | +-----------+ 4 rows in set (0.00 sec)
Updated on: 12-Dec-2019
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