Database queries

Hi,
You can use the query function to get the record based on the userid and use the update function to update the record.
Here’s a code snippet to better explain what I’m referring:

async function updateCollectionRecord(recordId) {

  let recordToUpdate = await wixData.query("collectionName")
        .eq("_id", recordId)
        .find()
        .then(results => results.items[0]);

    recordToUpdate.fieldName = "ValueToUpdate";

    wixData.update("collectionName", recordToUpdate)
        .catch((err) => {
            console.log(err);
        });
}

Good luck,
Tal.