Hey @cagdas hope all is well. Welcome to the community.
Would you like to share more details around your issue, so that we could visualize your problem better and make more educated suggestions?
Provide your workflow, explanation of what you do there, screenshots of the wrong and expected links, and where in the execution you see duplicates for the row.
I will have a product database of approximately 6000 items and when I upload them to a Google Sheet page, the workflow hangs while retrieving the data, so I decided to work on retrieving the data with MySQL. I am currently working on that. Is there an example project on this subject in the forum that you can direct me to?