一旦用给定的代码页创建了数据库，您就无法修改它，除非导出数据、删除数据库后，再用正确的代码页重新创建该数据库并导入数据。

Once a database is created with a given code page, you cannot change it unless you export the data, drop the database, recreate the database with the correct code page, and import the data.

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全世界的研究人员都可以用这些数据来提高诊断正确率和治疗癌症，孤独症，精神失常和其他一些疾病的治愈率。

Researchers around the world will be able to mine the data to improve diagnostics and treatments for cancers, autism, mental disorders and other illnesses.

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许多这样的数据库系统都是又大又复杂——试想一下要容纳用图片提供正确驾车路线所需要的全部地图信息！

Many of these database systems are large and complex — imagine holding all the map information needed to provide accurate driving directions with pictures!

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