Joining Columns with CONCAT : Join Select « Join « SQL / MySQL






  1. SQL / MySQL
  2. Join
  3. Join Select

Joining Columns with CONCAT

    
mysql>
mysql>
mysql> CREATE TABLE sales_rep(
    ->   employee_number INT,
    ->   surname VARCHAR(40),
    ->   first_name VARCHAR(30),
    ->   commission TINYINT,
    ->   date_joined date,
    ->   birthday date
    -> );
Query OK, 0 rows affected (0.01 sec)

mysql>
mysql> INSERT INTO sales_rep values(1,'James','Writer',10, '1989-01-01', '1969-02-02');
Query OK, 1 row affected (0.00 sec)

mysql>
mysql>
mysql>
mysql> SELECT CONCAT(first_name, ' ',surname)
    ->  AS name,MONTH(birthday) AS month,DAYOFMONTH(birthday)
    ->  AS day FROM sales_rep ORDER BY month;
+--------------+-------+------+
| name         | month | day  |
+--------------+-------+------+
| Writer James |     2 |    2 |
+--------------+-------+------+
1 row in set (0.00 sec)

mysql>
mysql>
mysql> drop table sales_rep;
Query OK, 0 rows affected (0.00 sec)

mysql>








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