清单3中的代码初始化了mdb2_schema类的一个实例，方法是给它传入一个表示目标(PostgreSQL)数据库的MDB2对象。
The code in Listing 3 initializes an instance of the MDB2_Schema class, by passing it an MDB2 object representing the target (PostgreSQL) database.
复制粘贴操作生成新的目标数据库对象和包含元数据信息的 Optim 导出文件，Optim TDM 将使用该元数据来生成适当的隐私化数据。
The copy-and-paste operation generates the new target database objects and the Optim export file that contains metadata information that Optim TDM uses to generate the appropriately privatized data.
使用带COPYNO选项的ADMIN_COPY_SCHEMA过程会使目标数据库对象所在的表空间进入backup pending状态。
Using the ADMIN_COPY_SCHEMA procedure with the COPYNO option places the table Spaces, in which the target database object resides, in backup pending state.
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