MS Access - Lesson 7: Lock: Microsoft Access 2007

This article examines Microsoft access 2007 and explains the main developments, practical implications, and context readers should understand.

Microsoft Access 2007 Overview

Main courses

TipsMake.com - Key is a unique identifier for a record. Primary key cannot coexist on both records. This field may never be left blank Joint lock

A composite key is a primary key that consists of two or more fields. It can also be called a binding key.

Foreign key

A foreign key is a field or combination of fields related to the primary key of another table.