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MySQL query to replace special characters from column value
Let us first create a table −
mysql> create table DemoTable1574 -> ( -> StudentCode varchar(20) -> ); Query OK, 0 rows affected (0.59 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable1574 values('111_Carol');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable1574 values('______');
Query OK, 1 row affected (0.30 sec)
mysql> insert into DemoTable1574 values('David_12345');
Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable1574 values('______');
Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −
mysql> select * from DemoTable1574;
This will produce the following output −
+-------------+ | StudentCode | +-------------+ | 111_Carol | | ______ | | David_12345 | | ______ | +-------------+ 4 rows in set (0.00 sec)
Here is the query to replace −
mysql> update DemoTable1574 set StudentCode=replace(StudentCode,'______','Mike_007'); Query OK, 2 rows affected (0.38 sec) Rows matched: 4 Changed: 2 Warnings: 0
Let us check the table records once again −
mysql> select * from DemoTable1574;
This will produce the following output −
+-------------+ | StudentCode | +-------------+ | 111_Carol | | Mike_007 | | David_12345 | | Mike_007 | +-------------+ 4 rows in set (0.00 sec)
Updated on: 16-Dec-2019
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