Concatenating two strings in MySQL with space?

For this, you can use concat() function from MySQL. Let us first create a table −

mysql> create table DemoTable    -> (    -> Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    -> Name varchar(20),    -> Subject varchar(100)    -> ); Query OK, 0 rows affected (17.73 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable(Name,Subject) values('John','MySQL'); Query OK, 1 row affected (1.19 sec) mysql> insert into DemoTable(Name,Subject) values('Chris','SQL Server'); Query OK, 1 row affected (0.88 sec) mysql> insert into DemoTable(Name,Subject) values('Robert','MongoDB'); Query OK, 1 row affected (2.62 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable;

Output

+----+--------+------------+ | Id | Name | Subject | +----+--------+------------+ | 1 | John | MySQL | | 2 | Chris | SQL Server | | 3 | Robert | MongoDB | +----+--------+------------+ 3 rows in set (0.00 sec)

Here is the query to concatenate two strings with space −

mysql> update DemoTable    -> set Subject=concat(Name,' ',Subject); Query OK, 3 rows affected (0.38 sec) Rows matched: 3 Changed: 3 Warnings: 0

Let us check all records from the table −

mysql> select *from DemoTable;

Output

+----+--------+------------------+ | Id | Name   | Subject          | +----+--------+------------------+ | 1  | John   | John MySQL     | | 2  | Chris  | Chris SQL Server | | 3  | Robert | Robert MongoDB | +----+--------+------------------+ 3 rows in set (0.00 sec)