Concat two column in a select statement sql server 2005

Question

How to Concat two column in a select statement sql server 2005?

Here is my statement Select FirstName,secondName from Table...

Now i did try con

Answer 1

If one of your fields is numeric then you can cast it to a string as follows:

SELECT FirstName + ISNULL(' ' + SecondName, '') + ' age(' + CONVERT(nvarchar,age) + ')' from Table

Answer 2

do like this :

 select cast( FirstName as varchar)+' '+cast( secondName as varchar) from table

Answer 3

SELECT FirstName + ISNULL(' ' + SecondName, '') from Table