SQL Guidelines

These guidelines apply to relational databases, specifically Microsoft SqlServer.

Tables

Tables should contain the following:

Table names should be singular, i.e. Customer, not Customers
Unique PRIMARY KEY column that following the naming pattern of {table}Id, i.e. CustomerId. This should be numeric and incrementing, ideally an identity column.
When table will be used in or part of a REST resource, a uniqueidentier column that has a UNIQUE constraint on it following the naming pattern of {table}ResourceId, i.e. CustomerResourceId.
Excepting in case of a pure join table, all tables should have a set of audit stamp column for keeping track of when a row was created or last modified
CreatedDate
CreateSubjectId
LastModifiedDate
LastModifiedSubjectId