The text can be found and replaced with the help of the replace() function. It is explained with the help of the following steps −
First, a table is created with the help of the create command which is given as follows −
mysql> CREATE table FindAndReplaceDemo -> ( -> FirstName varchar(200) -> ); Query OK, 0 rows affected (0.43 sec)
After creating the above table, the records are inserted with the help of the insert command. This is given below −
mysql> INSERT into FindAndReplaceDemo values('john'); Query OK, 1 row affected (0.15 sec) mysql> INSERT into FindAndReplaceDemo values('smith'); Query OK, 1 row affected (0.17 sec) mysql> INSERT into FindAndReplaceDemo values('Bob'); Query OK, 1 row affected (0.12 sec) mysql> INSERT into FindAndReplaceDemo values('carol'); Query OK, 1 row affected (0.18 sec)
All the records can be displayed with the help of the select statement which is given as follows −
mysql> SELECT * from FindAndReplaceDemo;
The following is the output obtaine
+-----------+ | FirstName | +-----------+ | john | | smith | | Bob | | carol | +-----------+ 4 rows in set (0.00 sec)
Now, the name Carol is replaced with Taylor with the help of the replace function. The syntax for that is given below −
UPDATE yourTableName SET column_name= replace(column_name, 'Old_Value', 'New_Value');
The query using the above syntax is given as follows −
mysql> UPDATE FindAndReplaceDemo SET FirstName = replace(FirstName, 'carol', 'Taylor'); Query OK, 1 row affected (0.14 sec) Rows matched: 4 Changed: 1 Warnings: 0
The contents of the table can be viewed again with the help of the SELECT statement. This is given below −
mysql> SELECT * from FindAndReplaceDemo;
The following is the output obtained
+-----------+ | FirstName | +-----------+ | john | | smith | | Bob | | Taylor | +-----------+ 4 rows in set (0.00 sec)
As can be seen with the above output, Carol is replaced with Taylor.