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How to concatenate two column values into a single column with MySQL. The resultant column values should be separated by hyphen
Let us first create a table −
mysql> create table DemoTable835( CountryCode int, CountryName varchar(100) ); Query OK, 0 rows affected (0.63 sec)
Insert some records in the table using insert command −
mysql> insert into DemoTable835 values(100,'US'); Query OK, 1 row affected (0.36 sec) mysql> insert into DemoTable835 values(101,'UK'); Query OK, 1 row affected (0.10 sec) mysql> insert into DemoTable835 values(102,'AUS'); Query OK, 1 row affected (0.26 sec) mysql> insert into DemoTable835 values(103,'ENG'); Query OK, 1 row affected (0.09 sec)
Display all records from the table using select statement −
mysql> select *from DemoTable835;
This will produce the following output −
+-------------+-------------+ | CountryCode | CountryName | +-------------+-------------+ | 100 | US | | 101 | UK | | 102 | AUS | | 103 | ENG | +-------------+-------------+ 4 rows in set (0.00 sec)
Following is the query to concatenate two columns values into a single column−
mysql> select concat(CountryCode,'-',CountryName) from DemoTable835;
This will produce the following output −
+-------------------------------------+ | concat(CountryCode,'-',CountryName) | +-------------------------------------+ | 100-US | | 101-UK | | 102-AUS | | 103-ENG | +-------------------------------------+ 4 rows in set (0.00 sec)
Updated on: 03-Sep-2019
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