select distinct substring(name,1,1) from stamps ,color_master where color_master.color_code=stamps.color_code and color_master.color='Orange' and stamps.serial_no='1254' and year(stamps.issue_date)=1987 order by substring(name,1,1)
IndianPost
Color >> Orange >> Serial Number >> 1254 >> Issue Date >> year >> 1987 >> Alpha >> G >>