When performing a database export from the Runtime Server, BIC creates a new ID for the exported batches, such as 00001770_00000016. The left part of this ID represents the database ID while the right part represents the previous file system batch ID.
This affects only the batches exported from the file system and is required to keep the string ID unique. If you import the batches directly into the database, the string ID consists of the reference to the database ID.