Click here to view and discuss this page in DocCommentXchange. In the future, you will be sent there automatically.

SQL Anywhere 12.0.0 » SQL Anywhere 12 - Introduction » Data management technologies » Relational database concepts » Relationships between tables


Primary keys

Each table in a relational database should have a primary key. The primary key is a column, or set of columns, that uniquely identifies each row. No two rows in a table can have the same primary key value.