Tier price update

Question

Currently my store has more 1500 products. I want to update my tier prices for each product by one. Is there any way to directly update database or by a script.

Thanks

Answer 1

All the tier prices are stored in the table catalog_product_entity_tier_price. The columns mean the following:

• value_id - table auto increment
• entity_id - the product id
• all_groups - 0/1 flag that tells if the prices apply to all customer groups
• customer_group_id - the id of the customer group the prices are applied. If all_groups is 1 this has no value. If you have one price that should apply to only 2 customer groups add 2 different records in the table one for each customer group
• qty - represents the minimum quantity for which the tier price is applied.
• value - is the actual price value
• website_id - the id of the website for which the prices are applied. 0 for all websites.

I know it's not a good practice to edit the DB directly, but in this case, when there is only one table involved, the risk is minimum. I've done this with success in the past. If you manage to format you data in the same format of the columns described above you can directly insert/update data in this table.
If you plan to take this approach backup your database before starting.
After you are done a price reindex is required.

Answer 2

I use following script to update tier price with help from Marius.

/*
  * Tier price update directly
  */


 $con = mysqli_connect("localhost", "user", "password", "database");
 // Check connection
 if (mysqli_connect_errno()) {
     echo "Failed to connect to MySQL: " . mysqli_connect_error();
 }
//get higher tier qty first update it. Then we don't get duplicate values error. 
//Because value_id, all_groups, customer_group_id, qty and website_id are unique.
 $query = "select * from `catalog_product_entity_tier_price` order by  value_id desc, qty";
 $results = mysqli_query($con, $query);
 $row_count = 0;
 $error_row_count = 0;
 while ($row = mysqli_fetch_assoc($results)) {
     $update_query  = "";
     $update_query = " update `catalog_product_entity_tier_price` set qty = qty+1 where value_id=".$row['value_id'];
 //    echo $update_query;
     if(!mysqli_query($con, $update_query)){
         ++$error_row_count;
         echo 'Value id = '.$row['value_id']." -- Tier price =".$row['value']." -- Qty =".$row['qty']." -- Entity id = ".$row['entity_id']."<br />";
     }
     ++$row_count;
 }
 echo "Total records successe = ".$row_count."<br />";
 echo "Error records = ".$error_row_count;