Customer:-Cid, Cname, Cadd, Mobileno, C_Date
Salesman:-Sid,Sname,Sadd,S_Joiningdate
Model:-Mid,M_Code,M_Name,Price,Mstock,Mdescription,,Manifacturingdate.
Purchase
:-Pid,Cid,Sid,M_Code,Qty,Price,P_Date
Bill:-Bid,Cid,Sid,Pid,,B_Date,Total_Amt,Vat,Gst,Tax.
