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is their any way i can assign products to category using sql in program ? as category are too large request gets heavy so not able to save the traditional way.

1

category and Products are map on catalog_category_product table .

where are 4 columns like : entity_id,category_id,product_id and position.

where entity_id is auto increment.

so you can run this by sql -:

INSERT INTO `catalog_category_product`(`category_id`, `product_id`) VALUES ('category_id','product_id')

You can use it by simple corePHP program like

  1. Create A temporary table on your database having 4 column (id,category_id,product_id,flag)and stored data .
  2. Create a php file on root ,and Connect database.
  3. Select From this temporary table and insert into catalog_category_product table and if update success update flag .
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  • Hello, how to use it in program ? – devhs Apr 20 at 4:31
  • I hope Now you better Understand it. – smruti Apr 20 at 8:48
  • Thankyou for the answer – devhs Apr 20 at 9:25
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You can also assign products to category programmatically by using CategoryLinkManagementInterface By this way.

  * @var CategoryLinkManagementInterface
  */
 protected $categoryLinkManagement;
 public function __construct(
     \Magento\Catalog\Api\CategoryLinkManagementInterface $categoryLinkManagementInterface
 ) {
     $this->categoryLinkManagement = $categoryLinkManagementInterface;
   }
public function execute()
 {
 $this->categoryLinkManagement->assignProductToCategories(
                 $Productsku,
                 $categoryIds
             );
 }

By Using object Manager

categoryLinkManagement = \Magento\Framework\App\ObjectManager::getInstance()
            ->get('Magento\Catalog\Api\CategoryLinkManagementInterface');
categoryLinkManagement->assignProductToCategories(
                $product->getSku(),
                $product->getCategoryIds()
            );


  
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  • When there are more then 1000+ products to execute with this function it gets 504 not found error – devhs Apr 20 at 9:25

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