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.
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.
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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