您可能会想，显示所有可能数据的版本有点威力过度，实际上，选择性地为不同的安全角色启用多种特性时，这种方式是十分常见的。

You might think that showing all possible versions of data is overkill, but it's actually quite common when you want to selectively enable various features for different security roles.

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在本版本中，已新增了更改现有数据库对象、为每个对象定义角色和每个角色的权限等功能。

In this release, altering existing database objects and the ability to define roles and privileges for each role for each object has been newly added.

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