A journal of database management is like a diary for keeping track of changes in a database. Whenever someone changes something in the database (like adding an extra column, deleting something or editing values), that person's name, what they changed and when they changed it will be recorded in the journal. This helps you track who did what and when it happened, which can be important if you ever need to go back and look at something that was changed. It also helps you keep your database organized and in good shape.