It is commonplace in SQL-databases to declare a single primary key, the most important unique key, however there could be many more unique keys that could serve the same purpose.
However, there could be further unique keys that could serve the same purpose. It is commonplace in SQL databases to declare a single primary key, the most important unique key.
It is commonplace in SQL databases to declare a single primary key, the most important unique key. However, there could be further unique keys that could serve the same purpose.
It is commonplace in SQL databases to declare a single primary key, the most important unique key. However, there could be further unique keys that could serve the same purpose.