A DoS is a malicious attempt to prevent the normal operation of a computer system. You may frequently see the terms 'DDoS' (Distributed Denial of Service) and 'DoS' used interchangeably, but there are some subtle differences.
SELECT deal_master.*, buyer_contact.*, purchase_contact.*, deal_lots.*, sale.*, states.abbreviation, sale_buyer.sale_buyer_name, auction.auction_name, sale_buyer_yard.sale_buyer_yard, B.first_name as inside_seller_name, A.first_name as inside_buyer_name FROM ((purchase_contact JOIN (buyer_contact JOIN (auction JOIN (userinfo A JOIN (deal_master LEFT JOIN states ON deal_master.origin_state_id = states.state_id) ON deal_master.inside_buyer = A.user_id) ON auction.auction_id = deal_master.auction_id) ON buyer_contact.buyer_contact_id = deal_master.outside_buyer_id) ON purchase_contact.purchase_contact_id = deal_master.purchase_contact_id) LEFT JOIN (deal_lots LEFT JOIN (userinfo B JOIN (sale_buyer JOIN (sale LEFT JOIN sale_buyer_yard ON sale.sale_buyer_yard_id = sale_buyer_yard.sale_buyer_yard_id) ON sale.sale_buyer_id = sale_buyer.sale_buyer_id) ON sale.inside_seller = B.user_id) ON sale.sale_id = deal_lots.sale_id) ON deal_master.deal_master_id = deal_lots.deal_master_id) WHERE 0 = 0
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