Both read and write passwords may be defined for tables in tablesONLINE. The password field will appear with a prompt on the Identify Table/Row screen for any table that has been assigned a password. If no password has been assigned to the table, the field and the prompt will not appear.
If a table has a read password, a password will be required to open the table for browsing or editing. If a table has a write password only, you will need the password for editing but not browsing.