In which situation are you NOT required to perform an incomplete recovery？（） when all the control files are lost。 when all the members of a redo log group are lost。 when a table is dropped and purged from the Recycle Bin。 when a temporary file of the default temporary tablespace is lost。
工程建设实施过程中的工程质量由（）负总责。工程建设实施过程中的工程质量由（）负总责。 A.监理单位 。 B.设计单位 。 C.施工单位 。 D.项目法人。
Examine the following command: SQL> ALTER TABLE booking SHRINK SPACE COMPACT; Which activity is performed when the preceding command is executed?（） The shrink operation touches every block in the BOOKING table。 The high-water mark (HWM) for the BOOKING table is shifted from its original position。 The progress of the shrink operation is saved in the bitmap blocks of the BOOKING table。 The data manipulation language (DML) triggers on the BOOKING table are executed because the shrink operation is internally handled by the INSERT/DELETE operatio。
Given: What is the result？（） The file will compile without error.。 Compilation fails. Only line 7 contains an error.。 Compilation fails. Only line 12 contains an error.。 Compilation fails. Only line 13 contains an error.。 Compilation fails. Only lines 7 and 12 contain errors.。
加密后的信息摘要称为（） 数字指纹。 数字签名。 数字信封。 数字证书。
以下关于物流产业的说法错误的是（）
