In my database therer is now a need to have a table that begins the primary key ID that begins with a number greater than 10,000. The reason for this is because now we have to link two tables with similar information (formerly was just one table) to a reference table, and it will fall over if two id's are the same. I thought if I could make the ID's different there wouldn't be an issue with this. Any ideas would be appreciated. Many thanks.