Whether Natural generates multiple ET commands
or if they are programmed in 3GL, the fact is that a series of
ET commands for multiple databases does not provide
guaranteed distributed transaction integrity because if there is a system
crash, for example, between one ET and the next an
inconsistency occurs.
Adabas Transaction Manager guarantees the integrity of distributed transactions by reacting to the first ET of the series to make sure the full distributed transaction is applied across all the modified databases. As follows:
| 1. | Modify data in Adabas database A |
| 2. | Modify data in Adabas database B |
| 3. | Issue ET command to Adabas database A
|
| 4. | Issue ET command to Adabas database B
|
