CONCAT'ing NULL fields

Question

I have a table with three fields, FirstName, LastName and Email.

Here\'s some dummy data:

FirstName | LastName | Email
Adam        West       adam@west.c         


        

Answer 1

Look at CONCAT_WS

For example:

CONCAT_WS('',NULL,"TEST STRING","TEST STRING 2")

Yields

TEST STRINGTEST STRING 2

This is easier than constructing IFNULL around everything. You can use an empty string as the separator.