我们着眼于传统的事务处理和通过在动作集合上强制实行all-or-none语义来在许多动作间保持数据完整性的方法。
We looked at classical transaction processing and how it enables data integrity across a number of actions by forcing an all-or-none semantic to the set of actions.
一项隐含的DB 2限制会强制要求bus_start值小于bus_end值，确保时态数据的完整性。
An implicit DB2 constraint enforces that bus_start values are less than bus_end values, ensuring temporal data integrity.
说明强制引用完整性的要求以及对数据库用户的影响。
Describes requirements for enforcing referential integrity and the effect this has on database users.
说明强制引用完整性的要求以及对数据库用户的影响。
Describes requirements for enforcing referential integrity and the effect this has on database users.
应用推荐