Remove all orders from Magento database

Delete all orders data from a Magento installation.

SQL Query run directly on the back-end database.
Removes all previous tables of sales, shipments,invoices etc…
It's Works on CE 1.7.0.2 >=
Please take a DB backup before proceeding.

SET FOREIGN_KEY_CHECKS=0;

TRUNCATE sales_flat_order;
TRUNCATE sales_flat_order_address;
TRUNCATE sales_flat_order_grid;
TRUNCATE sales_flat_order_item;
TRUNCATE sales_flat_order_status_history;
TRUNCATE sales_flat_quote;
TRUNCATE sales_flat_quote_address;
TRUNCATE sales_flat_quote_address_item;
TRUNCATE sales_flat_quote_item;
TRUNCATE sales_flat_quote_item_option;
TRUNCATE sales_flat_order_payment;
TRUNCATE sales_flat_quote_payment;
TRUNCATE sales_flat_shipment;
TRUNCATE sales_flat_shipment_item;
TRUNCATE sales_flat_shipment_grid;
TRUNCATE sales_flat_invoice;
TRUNCATE sales_flat_invoice_grid;
TRUNCATE sales_flat_invoice_item;
TRUNCATE sendfriend_log;
TRUNCATE tag;
TRUNCATE tag_relation;
TRUNCATE tag_summary;
TRUNCATE wishlist;
TRUNCATE log_quote;
TRUNCATE report_event;
  
ALTER TABLE sales_flat_order AUTO_INCREMENT=1;
ALTER TABLE sales_flat_order_address AUTO_INCREMENT=1;
ALTER TABLE sales_flat_order_grid AUTO_INCREMENT=1;
ALTER TABLE sales_flat_order_item AUTO_INCREMENT=1;
ALTER TABLE sales_flat_order_status_history AUTO_INCREMENT=1;
ALTER TABLE sales_flat_quote AUTO_INCREMENT=1;
ALTER TABLE sales_flat_quote_address AUTO_INCREMENT=1;
ALTER TABLE sales_flat_quote_address_item AUTO_INCREMENT=1;
ALTER TABLE sales_flat_quote_item AUTO_INCREMENT=1;
ALTER TABLE sales_flat_quote_item_option AUTO_INCREMENT=1;
ALTER TABLE sendfriend_log AUTO_INCREMENT=1;
ALTER TABLE sales_flat_order_payment AUTO_INCREMENT=1;
ALTER TABLE sales_flat_quote_payment AUTO_INCREMENT=1;
ALTER TABLE sales_flat_shipment AUTO_INCREMENT=1;
ALTER TABLE sales_flat_shipment_item AUTO_INCREMENT=1;
ALTER TABLE sales_flat_invoice AUTO_INCREMENT=1;
ALTER TABLE sales_flat_invoice_grid AUTO_INCREMENT=1;
ALTER TABLE sales_flat_invoice_item AUTO_INCREMENT=1;
ALTER TABLE sales_flat_shipment_grid AUTO_INCREMENT=1;
ALTER TABLE tag AUTO_INCREMENT=1;
ALTER TABLE tag_relation AUTO_INCREMENT=1;
ALTER TABLE tag_summary AUTO_INCREMENT=1;
ALTER TABLE wishlist AUTO_INCREMENT=1;
ALTER TABLE log_quote AUTO_INCREMENT=1;
ALTER TABLE report_event AUTO_INCREMENT=1;
  
-- lets reset customers
TRUNCATE customer_address_entity;
TRUNCATE customer_address_entity_datetime;
TRUNCATE customer_address_entity_decimal;
TRUNCATE customer_address_entity_int;
TRUNCATE customer_address_entity_text;
TRUNCATE customer_address_entity_varchar;
TRUNCATE customer_entity;
TRUNCATE customer_entity_datetime;
TRUNCATE customer_entity_decimal;
TRUNCATE customer_entity_int;
TRUNCATE customer_entity_text;
TRUNCATE customer_entity_varchar;
TRUNCATE log_customer;
TRUNCATE log_visitor;
TRUNCATE log_visitor_info;
  
ALTER TABLE customer_address_entity AUTO_INCREMENT=1;
ALTER TABLE customer_address_entity_datetime AUTO_INCREMENT=1;
ALTER TABLE customer_address_entity_decimal AUTO_INCREMENT=1;
ALTER TABLE customer_address_entity_int AUTO_INCREMENT=1;
ALTER TABLE customer_address_entity_text AUTO_INCREMENT=1;
ALTER TABLE customer_address_entity_varchar AUTO_INCREMENT=1;
ALTER TABLE customer_entity AUTO_INCREMENT=1;
ALTER TABLE customer_entity_datetime AUTO_INCREMENT=1;
ALTER TABLE customer_entity_decimal AUTO_INCREMENT=1;
ALTER TABLE customer_entity_int AUTO_INCREMENT=1;
ALTER TABLE customer_entity_text AUTO_INCREMENT=1;
ALTER TABLE customer_entity_varchar AUTO_INCREMENT=1;
ALTER TABLE log_customer AUTO_INCREMENT=1;
ALTER TABLE log_visitor AUTO_INCREMENT=1;
ALTER TABLE log_visitor_info AUTO_INCREMENT=1;
  
-- Now, lets Reset all ID counters
TRUNCATE eav_entity_store;
ALTER TABLE eav_entity_store AUTO_INCREMENT=1;
  
SET FOREIGN_KEY_CHECKS=1;