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How to display column values as CSV in MySQL?
To display column values as CSV, use GROUP_CONCAT().
Let us first create a table −
mysql> create table DemoTable786 ( StudentId int NOT NULL AUTO_INCREMENT PRIMARY KEY, StudentName varchar(100) ) AUTO_INCREMENT=101; Query OK, 0 rows affected (0.70 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable786(StudentName) values('Chris');
Query OK, 1 row affected (0.13 sec)
mysql> insert into DemoTable786(StudentName) values('Robert');
Query OK, 1 row affected (0.24 sec)
mysql> insert into DemoTable786(StudentName) values('Mike');
Query OK, 1 row affected (0.15 sec)
mysql> insert into DemoTable786(StudentName) values('Sam');
Query OK, 1 row affected (0.12 sec)Display all records from the table using select statement −
mysql> select *from DemoTable786;
This will produce the following output -
+-----------+-------------+ | StudentId | StudentName | +-----------+-------------+ | 101 | Chris | | 102 | Robert | | 103 | Mike | | 104 | Sam | +-----------+-------------+ 4 rows in set (0.00 sec)
Following is the query to select columns as CSV in MySQL −
mysql> select group_concat(StudentId),group_concat(StudentName) from DemoTable786;
This will produce the following output -
+-------------------------+---------------------------+ | group_concat(StudentId) | group_concat(StudentName) | +-------------------------+---------------------------+ | 101,102,103,104 | Chris,Robert,Mike,Sam | +-------------------------+---------------------------+ 1 row in set (0.00 sec)
Updated on: 09-Sep-2019
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