Syncing table between two different databases with a twist

[rainmanjam]

Hopefully I can explain this correctly.

I am currently using MSSQL 2008 and I have two databases with 2 tables. In DB1, Table 1 has a username and a UserID. Table 2 has a GUID and a UserID. The UserID in table 2 is added to show which user added the row. I have migrated tables 1 and 2 from DB1 to DB2 but the UserID from Table 1 in DB2 is different from DB1. I want to keep the UserID and match up the users from DB1 into DB2 correctly to match up with table 2 in DB2. The UserID in Table 2 in DB2 should change. Is there an easy way of doing this?

[james.billings]

Thanks for your post. I'm not sure you'll easily be able to do what you want. It sounds like you're talking about merging data, and we have a document detailing "best practices" on this, [url=http://www.red-gate.com/supportcenter/Content?c=knowledgebase%5cSQL_Data_Compare%5cKB200804000239.htm&p=SQL Data Compare]here[/url] but it's quite geared towards designing things a certain way before you start using Compare- but see if it helps.