Use Identity column (auto number) Note: This force an immediate call to the DB when Create() is called

Use a sequence

Use the HiLo algorithm to get the next value

Use a sequence and a HiLo algorithm - better performance on Oracle

Use the hex representation of a unique identifier

Use the string representation of a unique identifier

Generate a Guid for the primary key Note: You should prefer using GuidComb over this value.

Generate a Guid in sequence, so it will have better insert performance in the DB.

Use an identity or sequence if supported by the database, otherwise, use the HiLo algorithm

The primary key value is always assigned. Note: using this you will lose the ability to call Save(), and will need to call Create() or Update() explicitly.

This is a foreign key to another table

Returns a Int64 constructed from the system time and a counter value.

Returns a Int64, constructed by counting from the maximum primary key value at startup.

A custom generator will be provided. See CustomGenerator