New line separator doesn't work for group_concat function in MySQL? How to use it correctly?



To use new line separator in group_concat() function, follow the below syntax −

select group_concat(concat_ws(' ',yourColumnName1, yourColumnName2) SEPARATOR "\r
") from yourTableName;

Let us first create a table −

mysql> create table DemoTable    (    Id int NOT NULL AUTO_INCREMENT PRIMARY KEY,    FirstName varchar(20),    LastName varchar(20)    ); Query OK, 0 rows affected (0.67 sec)

Insert some records in the table using insert command −

mysql> insert into DemoTable(FirstName,LastName) values('John','Smith'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable(FirstName,LastName) values('David','Miller'); Query OK, 1 row affected (0.14 sec) mysql> insert into DemoTable(FirstName,LastName) values('John','Doe'); Query OK, 1 row affected (0.13 sec)

Display all records from the table using select statement −

mysql> select *from DemoTable;

This will produce the following output −

+----+-----------+----------+ | Id | FirstName | LastName | +----+-----------+----------+ | 1 | John | Smith | | 2 | David | Miller | | 3 | John | Doe | +----+-----------+----------+ 3 rows in set (0.00 sec)

Following is the query to work with new line separator for group_concat function −

mysql> select group_concat(concat_ws(' ',FirstName, LastName) SEPARATOR "\r
") from DemoTable;

This will produce the following output &mnus;

+-------------------------------------------------------------------+ | group_concat(concat_ws(' ',FirstName, LastName) SEPARATOR "\r
") | +-------------------------------------------------------------------+ | John Smith David Miller John Doe                                 | +-------------------------------------------------------------------+ 1 row in set (0.00 sec)
Updated on: 2019-07-30T22:30:26+05:30

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