‏What is the purpose of relational database ?, A)To separate the method of storing date and our understanding of it, B)combine the method of storing data and our understanding of it, C)To understand the data, What becomes faster when using a database?, A)Application development, C)Sleeping, B)Walking, Which of the following is NOT a type of early database system?, A)Relational database systems, B)Hierarchical systems, C)Network model systems, What was a problem with early database systems?, A)Data organization was mixed with data storage., B)They could not store large amounts of data., C)They were only used in small companies., What is the main purpose of XML in e-commerce websites?, A)Exchanging data between systems, B)Designing web pages, C)Storing images, Which type of application stores data based on time?, A)Time Series Applications, B)Spatial Applications, C)Data Mining Applications, What is the most complex type of integrity constraint in a database?, A)Referential integrity constraint, B)Data type constraint, C)Value range constraint, When does a trigger usually run?, A)when insert update or delete happens , B)when database starts , C)every day, What is one benefit of enforcing standards in a centralized database system?, A) It improves communication and cooperation between departments, B) Each department controls its own data independently, C) It eliminates the need for reports, Which of the following can be included in database standards?, A) Naming conventions, data formats, and report layouts, B) Hardware specifications, C) Internet speed.

LA

由
打印
嵌入

排行榜

视觉风格

选项

切换模板

)
恢复自动保存：？