Select, Filter and Sort ist not working with Oracle SQL Developer

Question

I am using SAP ADBC to UPDATE some Oracle database entries.

It's working and the data appearance in the SQL Developer between "normal" and UPDATED entries look same.

But when I use a,

SELECT * FROM XYZ WHERE TIMESTAMP > 01.01.2024

it just shows me all the entries, which are not UPDATED via SAP.

Looks like the UPDATE of SAP ADBC is doing something with the written data, maybe a conversion?

I can just see the "SAP" entries, when I use a SELECT * and scroll through all available entries, which is not suitable for a large amount

Is there a way to check, what happened to the updated data?