I have a table created by being imported from a text file. The original table has a column that contains the primary key for the table. Now that the table has been imported, Sql Server will not allow me to designate that column as the primary key. I guess I could create a new primary key column and populate it etc, but i have several dozen tables I'll be importing and I was hoping there would be an easy way to keep the old primary key columns without having to re-create them. Can anybody give me any easy way to accomplish this?