Each record in the transaction log is identified by an origin queue ID that consists of 64 hexadecimal characters (32 bytes). The format of the origin queue ID is determined by the Replication Agent instance and varies according to the primary database type.
|
Character |
Bytes |
Description |
|---|---|---|
|
0–3 |
2 |
Database generation ID |
|
4–19 |
8 |
Operation sequence number |
|
20–35 |
8 |
Transaction ID |
|
36–51 |
8 |
First operation sequence number of oldest active transaction |
|
52–55 |
2 |
Operation type (begin = 0, data/LOB = 1, commit/rollback = 7FFF) |
|
56–59 |
2 |
LOB sequence ID |
|
60–63 |
2 |
Unused |