row
Like one filled-out line in a paper form, it is a single record in a database table.
Picture a table where each horizontal line holds one person’s answers. A row groups values across columns, which are the labeled fields like name or email, for one thing such as one user or one order.
It matters because most app data is read and written one row at a time, so understanding rows helps you plan screens and actions.
In practice you insert to add a row, update to change one, and delete to remove one. A primary key, which is a unique id for each row, helps you find and link the right row quickly.