In Microsoft SQL Server, for example, a primary key usually equates to a clustered index. In SQLite, a primary key is usually just a unique index and is distinct from the special rowid column name.

In the advanced case of database tables that are split up into different volumes depending on the value of the primary key, called horizontal sharding, you also have to consider how the primary ...

Thanks in advance,<BR>-Ryan<BR><BR>*I know SQL can be used to make primary keys, but a lot of code exists that depends on Access' own primary key. Quote Report M ...

I'm adding a table and subclass table to my DB. (Subclass table = table where the primary key joins to the primary key of another table, to give extra row information to some subset of the rows ...

Defining Columns, Primary, and Composite Keys in Entity Framework There are two attributes you can put on your entity class properties: one is a convenience, the other is essential, and both are ...

Under far too many circumstances, those responsible for modeling data are ignoring the above perspective on primary keys and are simply defining surrogate keys for everything in their data model. One ...

When working on a multidimensional design, every fact table within scope should be handled with care. In an ideal world, each low-level fact table represents the metrics related to a business event.