Removing [] around column in SQL Server 2005

As you've now got a column with square brackets in the name itself, you can access that column by:

SELECT [[EmployeeName]]] 
FROM Customer

Yes, all those extra square brackets are a bit unwieldy :)

So, I'd rename your column again to remove the brackets:

EXEC SP_RENAME 'customer.[[EmployeeName]]]', 'EmployeeName','COLUMN'

So you can then reference "normally":

SELECT EmployeeName
FROM Customer

This will restore order in your database:

EXEC SP_RENAME 'customer."[EmployeeName]"', 'EmployeeName','COLUMN'

You cannot use double brackets because it returns syntax error. Quotes circumvent this limitation.