Table Select Options BT From and To - AMDP CDS

Hi Team ,

I have a table SETLEAF where i have 2 columns ValueFrom and ValTo with SIGN option is BT. Now i need to design a CDS View having one column which constitutes of only column. I know that table functions are the way but looking to check if you have any predefined functions or SQL Code to help on it.

SETNAME SIGN OPTION VALFROM VALTO

ABC I BT 500700 500710

COLUMN1

500700

500701

500702

500703

500704

500705

500706

500707

500708

500709

500710