Compression - BLC and MVC - response (2) by SmarakDas

Hello Dieter,
As this Post concerns BLC, I have a few Questions on BLC:
(a) Is there any way through which I can recognise which Tables have BLC applied. Our DBS Control Settings ensure the BLC Application is subject to Table Level. So, every Table is not implicitly compressed via BLC. My requirement is to find the BackUp & Old Tables with no BLC applied and apply BLC on them.
(b) For Temperature based BLC, only the Data Blocks of eligible Tables in Cold Cylinders are Compressed.
Let's assume a 2-Cylinder based System and 03 Tables (Employee, Dept & Loc). "Employee" has Data Blocks on both Cyl_A and Cyl_B. "Dept" has Blocks on Cyl_A and "Loc" has Blocks on Cyl_C. On Access Count, "Dept"> "Employee"> "Loc". If BLC is only applied on "Employee" and Cyl_A becomes HOT courtesy of heavy usage of "Dept" Table and Cyl_B becomes COLD courtesy of very low usage of "Loc" Table ["Employee" is Medium-Used], then only the Data Blocks of "Employee" on Cyl_B will be compressed via BLC. The same doesn't apply for Data Blocks of "Employee" on Cyl_A.
If my interpretation is correct, whether the Data Blocks of a particular Table are compressed or not depends HEAVILY on the other Tables in the Cylinder. I am aware of generally a Table has Data Blocks across most Cylinders [Parallelism], but the Dependency on other Heavy Users doesn't seem right to me. Kindly let me know your opinion.