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Oracle认证考试

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You executed the following command to create a tablespace called SALES_DATA: SQL> CREATE TABLESPACE sales_data DATAFILE SIZE 100M SEGMENT SPACE MANAGEMENT AUTO; Which two statements are true about the SALES_DATA tablespace()

  • A、The database automatically determines the extent-sizing policy for the tablespace.
  • B、The segments are automatically shrunk when the contents are removed from them.
  • C、The allocation of extents within the tablespace is managed through the dictionary tables.
  • D、The space utilization description of the data blocks in segments is recorded in bitmap blocks.
  • E、The space utilization description of the data blocks in segments is managed through free lists.
正确答案:A,D
答案解析:
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