枝晶偏析
Which statement is true regarding Oracle Shared Server architecture？（） ["A dispatcher can support multiple client connects concurrently while a shared server process can be dedicated to only one dispatcher. ","Under the Oracle Shared Server architecture, client-user processes connect to shared user processes.","Each dispatcher has its own request queue, which is monitored every three seconds by the dispatcher. ","Oracle Shared Server required Oracle Net Service even if the client and shared server processes reside on the same machine."]
阐述长期投资评估的特点及其评估程序。
Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) HIRE_DATE DATE Which UPDATE statement is valid?（） ["UPDATE employees SET first_name = 'John' SET last_name ='Smith' WHERE employee_id = 180;","UPDATE employees SET first_name = 'John', SET last_name ='Smith' WHERE employee_id = 180;","UPDATE employees SET first_name = 'John' AND last_name ='Smith' WHERE employee_id = 180;","UPDATE employees SET first_name = 'John', last_name ='Smith' WHERE employee_id = 180"]
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