Câu 5: 70-461: MCSA Querying Microsoft SQL Server 2012/2014

You develop a database application. You create four tables. Each table stores different categories of products. You create a Primary Key field on each table. You need to ensure that the following requirements are met: ✑ The fields must use the minimum amount of space. ✑ The fields must be an incrementing series of values. ✑ The values must be unique among the four tables. What should you do?

1. A. Create a ROWVERSION column.
2. B. Create a SEQUENCE object that uses the INTEGER data type.
3. C. Use the INTEGER data type along with IDENTITY
4. D. Use the UNIQUEIDENTIFIER data type along with NEWSEQUENTIALID() — đáp án hiện tại
5. E. Create a TIMESTAMP column.