HOW TO CHECK TABLE SIZE

I want to know size of specific table in my SAP System and check growth history of this table.After searching from google, I check TCode DB02 is very useful for my needs.

From DB02 screen, just go to Space - Segments - Detailed Analysis

This dialog box will appear, fill in Type with Table and Segment/Object with name of your table (for example in this page TST03) then click Continue button.

Then this below screen will appear, you can check growth history by click on Days/Weeks/Months Tab on History Tab if data available. You also can check another Table by click on Select segments button.
Good luck :)