I have a table with width and height (both integers). I want to display it as are.
For eg: width = 300 and height = 160.
Area = 300 x 160.
I am using the following query
select cast(concat(width,'x',height) as varchar(20)) from table;
select concat(width,'x',height) from table;
ERROR: function concat(character varying, "unknown", character varying) does not exist
Hint: No function matches the given name and argument types. You may need to add explicit type casts.
select width || 'x' || height from table;
Sample fiddle: http://sqlfiddle.com/#!15/f10eb/1/0