This is not what I need, I need to compare the extraction time of each table.
Thinking about it, I created a variable at the beginning of the table named "vStartTab" and at the end of the table named "vEndTab" also will convert this extraction as QVD by time.
Example: "STORE Extraction_Time" INTO $ (VPATH) Extraction_Time_now () QVD "..
I'll need then have a table to calculate the variables "vEndTab" - "vStartTab" then taking the difference in time for each extraction that table.
grateful for your feedback!