The Table Compare and SNC Table Compare modules (under Perspectium > Replicator) allow you to compare a table on your ServiceNow instance with the tables in another database (Table Compare module) or another ServiceNow instance (SNC Table Compare module). By comparing two tables, you can see each table's record count as well as a list of record discrepancies by sys_id between the two tables that you are comparing (i.e. which records exist in one table and not in the other).
ServiceNow to ServiceNow Table Compare
To learn how to run a table compare for two ServiceNow instances via InstanceSync for ServiceNow, see SNC Table Compare.
ServiceNow to Database Table Compare
To learn how to run a table compare for a ServiceNow instance and a database via DataSync for ServiceNow, see Table Compare (Table Stats).