Which of the following is not a valid setting for the PROGRAM_TYPE parameter in a program object or the JOB_TYPE parameter in a job object?() PLSQL_BLOCK。 JAVA_STORED_PROCEDURE。 STORED_PROCEDURE。 EXECUTABLE。 None of the above are invalid settings.。
在单相桥式整流电路中,二极管最大反向电压是()。 U2。 2U2。 0.9U2(U2是变压器副边电压有效值)。
The listener has shut down unexpectedly. You want to view the listener log file and listener trace file to find the cause of the problem. How can you view the contents of the listener log file and the listener trace file?() Open the file at the location specified by the BACKGROUND_DUMP_DEST parameter in the pfile.。 Open the file at the location specified by the USER_DUMP_DEST parameter in the pfile.。 Issue the SERVICES command at the LSNRCTL> prompt.。 Issue the STATUS command at the LSNRCTL> prompt.。
What is the frequency of the front side bus (FSB) on the eX4 architecture?() 667 MHz。 533 MHz。 1066 MHz。 333 MHz。
长期投资有()两种形式。 广义投资。 狭义投资。 直接投资。 间接投资。
液压油常用的粘度包括动力粘度、运动粘度和()