Question

I am using Microsoft Sync Framework 2.1 to sync SQLSERVER and SQLSERVERCe databases. Syncing is working fine for simple insert, update and delete operations in any one the databases. Here I am using upload and download both for Sync directions.
but problem occurs when I sync both databases having same primary key values that is ID value is same in syncing database tables.
I got this exception error specifically CONSTRAINTEXCEPTION that states “Column ‘ID’ is constrained to be unique. Value ‘5’ is already present.”

Answer 1

I think that is a valid exception. even without using Sync Framework, you cant insert the same Primary Key value in a table.

see Selecting an Appropriate Primary Key for a Distributed Environment for guidelines in choosing keys for tables in Sync Framework