-------------------------------
sell_table
-------------------------------

sell_id
receipt_no
product_name
product_price
product_size
product_bult_price
paid_method
z_no
sell_date

----------------------------------
cart
----------------------------------
cart_id
product_name
product_price
cart_size
product_amount
cashier_name

----------------------------------
product_amount
---------------------------------
product_id
product_name
product_size
purchase_price
product_price
sku
product_size
p_group
availability

----------------------------------
purchase
----------------------------------
purchase_id
product_id
purchase_qty
purchase_date
purchase_mfg_date
purchase_expr_date
purchase_doc1
purchase_doc2
purchase_doc3

----------------------------------
shop_detail
----------------------------------
shop_id
shop_name
shop_location
shop_logo

----------------------------------
user_details
----------------------------------
user_id
full_name
gender
username
password
position
contact
photo

----------------------------------
vendor
----------------------------------
vendor_id
vendor_name
vendor_contact
vendor_description

----------------------------------
z_cache
----------------------------------
z_id
z_no