The primary reason for using an ri constraint is to ensure that data integrity is maintained whenever one table references another.
使用一个RI约束的主要原因是，确保当一个表引用另一个表时数据完整性得到维护。
The final step - an important one - is to point the OCAP RI to the hostapp.properties file you just created.
最后一步—也是很重要的一步—是将OCAP RI指向刚才创建的hostapps . properties文件。
One of her best friends went to Austria on an Ambassadorial Scholarship from The Rotary Foundation of RI and sent back glowing reports on how rewarding the experience was.
她的一个好友向国际扶轮的扶轮基金会申请到大使奖学金前往澳洲，并寄给她很多热情洋溢的信，诉说这是个多棒的经验。
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