zOs/TX/PER15

                 * row change timestamp
                 * 1) ohne row change column ==> page scope |
=txtL=128
creDb trg 0
+ ok creDb DSN.TX.GENF(PER15t0) ::f
creDb src 1
+ ok creDb DSN.TX.GENF(PER15s1) ::f
manual per15upd: check row change timestamp und update ==> page level
+ wait per15upd: check row change timestamp und update ==> page level
                * add row change column
creDb src 2
                 * 2) mit row change column ==> row  scope |
                 *     (sofort, noch in aReo*
manual per15upd: check row change timestamp und update ==> page level
manual per15reo: * jetzt sind alle change tst in der column