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We did an export of some old transactions, products and categories some time back. However there have been multiple updates to the data so a new export is required.

In order to do so we need to way to delete all products and transactions from the current Magento setup. How can we do that?

Would a flush similiar to this work in Magento 1,8 How to delete all sample data magento 1.9

  • If you are importing data through Magento's DataFlow it will automatically update new content for your products (if all attributes are same), for transnational you can follow the other link – huzefam Sep 14 '15 at 9:37
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Run these script in your phpmyadmin
***********for categories********************

TRUNCATE TABLE `catalog_category_entity`;
TRUNCATE TABLE `catalog_category_entity_datetime`;
TRUNCATE TABLE `catalog_category_entity_decimal`;
TRUNCATE TABLE `catalog_category_entity_int`;
TRUNCATE TABLE `catalog_category_entity_text`;
TRUNCATE TABLE `catalog_category_entity_varchar`;
TRUNCATE TABLE `catalog_category_product`;
TRUNCATE TABLE `catalog_category_product_index`;

INSERT  INTO `catalog_category_entity`(`entity_id`,`entity_type_id`,`attribute_set_id`,`parent_id`,`created_at`,`updated_at`,`path`,`POSITION`,`level`,`children_count`) VALUES (1,3,0,0,'0000-00-00 00:00:00','2009-02-20 00:25:34','1',1,0,1),(2,3,3,0,'2009-02-20 00:25:34','2009-02-20 00:25:34','1/2',1,1,0);
INSERT  INTO `catalog_category_entity_int`(`value_id`,`entity_type_id`,`attribute_id`,`store_id`,`entity_id`,`value`) VALUES (1,3,32,0,2,1),(2,3,32,1,2,1);
INSERT  INTO `catalog_category_entity_varchar`(`value_id`,`entity_type_id`,`attribute_id`,`store_id`,`entity_id`,`value`) VALUES (1,3,31,0,1,'Root Catalog'),(2,3,33,0,1,'root-catalog'),(3,3,31,0,2,'Default Category'),(4,3,39,0,2,'PRODUCTS'),(5,3,33,0,2,'default-category');

    *****************for customers*****************


    SET FOREIGN_KEY_CHECKS=0;
-- 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;
SET FOREIGN_KEY_CHECKS=1;

For Orders

SET FOREIGN_KEY_CHECKS=0; 
TRUNCATE `sales_flat_creditmemo`; 
TRUNCATE `sales_flat_creditmemo_comment`; 
TRUNCATE `sales_flat_creditmemo_grid`; 
TRUNCATE `sales_flat_creditmemo_item`; 
TRUNCATE `sales_flat_invoice`; 
TRUNCATE `sales_flat_invoice_comment`; 
TRUNCATE `sales_flat_invoice_grid`; 
TRUNCATE `sales_flat_invoice_item`; 
TRUNCATE `sales_flat_order`; 
TRUNCATE `sales_flat_order_address`; 
TRUNCATE `sales_flat_order_grid`; 
TRUNCATE `sales_flat_order_item`; 
TRUNCATE `sales_flat_order_payment`; 
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_quote_payment`; 
TRUNCATE `sales_flat_quote_shipping_rate`; 
TRUNCATE `sales_flat_shipment`; 
TRUNCATE `sales_flat_shipment_comment`; 
TRUNCATE `sales_flat_shipment_grid`; 
TRUNCATE `sales_flat_shipment_item`; 
TRUNCATE `sales_flat_shipment_track`; 
TRUNCATE `sales_invoiced_aggregated`; 
TRUNCATE `sales_invoiced_aggregated_order`; 
TRUNCATE `sales_payment_transaction`;
TRUNCATE `sales_order_aggregated_created`; 
TRUNCATE `sales_order_tax`;
TRUNCATE `sales_order_tax_item`;
TRUNCATE `sendfriend_log`; 
TRUNCATE `tag`; 
TRUNCATE `tag_relation`; 
TRUNCATE `tag_summary`; 
TRUNCATE `wishlist`; 
TRUNCATE `log_quote`; 
TRUNCATE `report_event`; 
ALTER TABLE `sales_flat_creditmemo` AUTO_INCREMENT=1; 
ALTER TABLE `sales_flat_creditmemo_comment` AUTO_INCREMENT=1; 
ALTER TABLE `sales_flat_creditmemo_grid` AUTO_INCREMENT=1; 
ALTER TABLE `sales_flat_creditmemo_item` AUTO_INCREMENT=1; 
ALTER TABLE `sales_flat_invoice` AUTO_INCREMENT=1; 
ALTER TABLE `sales_flat_invoice_comment` 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_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_payment` 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 `sales_flat_quote_payment` AUTO_INCREMENT=1; 
ALTER TABLE `sales_flat_quote_shipping_rate` AUTO_INCREMENT=1; 
ALTER TABLE `sales_flat_shipment` AUTO_INCREMENT=1;

You can use this function to delete attribute sets.

$resource = Mage::getSingleton('core/resource');
$db_read = $resource->getConnection('core_read');

$attribute_sets = $db_read->fetchCol("SELECT attribute_set_id FROM " . $resource->getTableName("eav_attribute_set") . " WHERE attribute_set_id<> 4 AND entity_type_id=4");
foreach ($attribute_sets as $attribute_set_id) {
    try {
        Mage::getModel("eav/entity_attribute_set")->load($attribute_set_id)->delete();
    } catch (Exception $e) {
        echo $e->getMessage() . "\n";
    }
}

And look for this table to remove attribute

catalog_eav_attribute
eav_attribute
eav_attribute_set

Check eav_attribute column is_user_defined so you can get some idea. See More Here https://gist.github.com/leek/1219708

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