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Select multiple columns and display in a single column in MySQL?
Use concat() for this. Let us first create a table −
mysql> create table DemoTable -> ( -> FirstName varchar(30), -> LastName varchar(30) -> ); Query OK, 0 rows affected (0.49 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable values('Chris','Brown');
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable values('Adam','Smith');
Query OK, 1 row affected (0.18 sec)
mysql> insert into DemoTable values('Carol','Taylor');
Query OK, 1 row affected (0.15 sec)Display all records from the table using select statement −
mysql> select *from DemoTable;
Output
This will produce the following output −
+-----------+----------+ | FirstName | LastName | +-----------+----------+ | Chris | Brown | | Adam | Smith | | Carol | Taylor | +-----------+----------+ 3 rows in set (0.00 sec)
Following is the query to select multiple columns with single alias −
mysql> select concat(FirstName,' ',LastName) as concatValue from DemoTable order by concatValue DESC;
Output
This will produce the following output −
+--------------+ | concatValue | +--------------+ | Chris Brown | | Carol Taylor | | Adam Smith | +--------------+ 3 rows in set (0.00 sec)
Updated on: 30-Jun-2020
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