If this is as simple as you suggest, then: You should create a <u>[SELECT query](https://sqlite.org/lang_select.html)</u> to be sure you have a WHERE clause that filters out all rows except the one you want to change. You can verify the column name and content then. You will write an <u>[UPDATE statement](https://sqlite.org/lang_update.html)</u> to change just the columns in just that row. The WHERE clause will match what you verified to be adequate with the select. Repeat as necessary. Most DB tools have a way to view the schema. That will likely aid your search for the right places to munge that data.