A family of Microsoft relational database management systems designed for ease of use.
I am wondering why this worked for nearly decades with Access 2007, and then when I transfer the database trom my laptop to my PC and use Access 365, it becomes not updateable. I have another table where a primary key is used, just to number new entries, and in a query, using it. it never could be updated, the way it depends on the table.
I put primary key in search and reading about locked property. The way I used the table is if I get a species ID, I update the records easily. Does primary make species only show once? It is unique but sometimes the subjet(common name, may vary, like if it is a morph. I don't fully understand.