SAP HANA SQL script - IF ... SELECT statement

Hi All,

I'd like to make SQL script for SAP HANA

is it possible IF statement followed by select statement ? like this ?

IF (SELECT (:posisi - 1) / 3.0 FROM DUMMY) = 1)

But when I tried, it shows error like this, is there any ways  I want IF statement with the value check from table ?

Regards,

Hendra