While maintaining your PrestaShop store, at times you may need or want to update the prices for all products at once. Perhaps you are having a sale where you allow 20% off all products, or you may simply need to increase your prices due to an increase in supplies. Whatever the case, this can be a tedious and time consuming process if you have more than a handful of products. If you have thousands, this can seem downright impossible. This can be done, however, with a simple SQL query. This is not done in the PrestaShop back office, but using a program such as phpMyAdmin. Follow along below as we take you through making a mass price change in your PrestaShop database using the phpMyAdmin tool.
How to make a bulk price adjustment using SQL in phpMyAdmin
- Log into your cPanel.
- Once in the cPanel, find the Databases category and click on the phpMyAdmin icon.
- This brings you to the main phpMyAdmin page. Look to the left hand sidebar and find the name of your PrestaShop database. Click on the name to begin working with it. Our database is named pshop15. If you do not know your database name, you can learn how to find it here.
- After clicking on the database name, the right hand panel will populate with a list of tables. More importantly, the work tabs at the top appear. Click on the SQL tab to open the SQL query editor.
- From the SQL query editor, you will need to enter the code to make the price change. Below are a few sample codes to demonstrate increasing and decreasing prices by both specific amounts and percentages.
Sample code to increase all prices by twenty percent (20%).
UPDATE ps_product_shop SET price = price*1.20
UPDATE ps_product SET price = price*1.20
Sample code to decrease all prices by 15 cents (.25).
UPDATE ps_product_shop SET price = price-.15
UPDATE ps_product SET price = price-.15
Sample code to increase all prices by fifty cents (.15).
UPDATE ps_product_shop SET price = price+0.50
UPDATE ps_product SET price = price+0.50
Sample code to decrease all prices by ten percent (10%)
UPDATE ps_product_shop SET price = price / 1.1
UPDATE ps_product SET price = price / 1.1
- Once you have entered a query with your desired price change, click the Go button at the bottom. This will activate the query and make the change. Your prices should now display with the new changes. Below is a before and after example of a price change where we increased the prices by 10%.