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How to add a specific character to any empty space in MySQL table values?
For this, use REPLACE() function and replace empty space with the character. Let us first create a table −
mysql> create table DemoTable (Subject text); Query OK, 0 rows affected (0.86 sec)
Example
Insert some records in the table using insert command −
mysql> insert into DemoTable values('Introduction to MySQL');
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable values('Java in depth');
Query OK, 1 row affected (0.21 sec)
mysql> insert into DemoTable values('Data Structure and Algorithm');
Query OK, 1 row affected (0.16 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
Output
+------------------------------+ | Subject | +------------------------------+ | Introduction to MySQL | | Java in depth | | Data Structure and Algorithm | +------------------------------+ 3 rows in set (0.00 sec)
Following is the query to replace empty space −
mysql> SELECT *,REPLACE(Subject,' ','_') as Subject_Name from DemoTable;
Output
+-------------------------------+------------------------------+ | Subject | Subject_Name | +-------------------------------+------------------------------+ | Introduction to MySQL | Introduction_to_MySQL | | Java in depth | Java_in_depth | | Data Structure and Algorithm | Data_Structure_and_Algorithm | +-------------------------------+------------------------------+ 3 rows in set (0.00 sec)
Updated on: 09-Mar-2020
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