The event ID from the source database of the last corresponding event from the stage that has been applied to the database.
When extracting from MySQL, the output from trepctl shows the MySQL binary log file and the byte position within the log where the transaction was extracted:
trepctl statusProcessing status command... NAME VALUE ---- ----- appliedLastEventId : mysql-bin.000064:0000000002757461;0 ...
When extracting from Oracle using the CDC method, the event ID is composed of the Oracle SCN number:
NAME VALUE ---- ----- appliedLastEventId : ora:16626156
Oracle Redo Reader
When extracting from Oracle using the Redo Reader method, the event ID is composed of a combination of Oracle SCN, transaction, and PLOG file numbers, separated by a hash symbol:
NAME VALUE ---- ----- appliedLastEventId : 8931871791244#0018.002.000196e1#LAST#8931871791237#100644
The format is:
Last committed Oracle System Change Number (SCN).
Last committed record number.
Minimum stored Oracle SCN.
PLOG file sequence number.