Cascading referential integrity constraints are foreign key constraints that tell SQL Server ... 0 DROP TABLE SalesHistory GO CREATE TABLE SalesHistory SaleID int IDENTITY(1,1) NOT NULL ...

Not Null ) With (Memory_Optimized = On; By default, setting the Memory_Optimized option creates a durable table. If you're willing to lose all of your data when SQL Server shuts down you can add a ...

SQL Server 2016 and Azure SQL Database both give you tables that automatically ... specifying two datetime columns and turning on versioning: Create Table dbo.SalesOrder ( ID int Not Null Primary Key ...

For example, a null in the Price column of the ITEM table does not mean that the item is being given ... Nulls are one of the most misunderstood features of SQL database systems. Although nulls can be ...

As an exam­ple, consider a table ... the null rows will be included as nor­mally desired, but the query writer needs to know that the col­umn is “null-able” and add in special code for how to deal ...