Oracle Coherence is best classified as （）? ["A Database Product","A Middleware Product","An Object Relational Mapping (ORM) Tool","A Soft Load Balancer","An Application Product"]
锅炉通风
Examine the data from the EMP table: The COMMISSION column shows the monthly commission earned by the employee.Which three tasks would require subqueries or joins in order to perform in a single step?（） [" Deleting the records of employees who do not earn commission."," Increasing the commission of employee 3 by the average commission earned in department 20."," Finding the number of employees who do NOT earn commission and are working for department 20."," Inserting into the table a new employee 10 who works for department 20 and earns a commission that is equal to the commission earned by employee 3."," Creating a table called COMMISSION that has the same structure and data as the columns EMP_ID and COMMISSIONS of the EMP table."," Decreasing the commission by 150 for the employees who are working in department 30 and earning a commission of more then 800."]
You have created a password file using the following command： ORAPWD file=d：\oracle\ora9i\orapwU01 password=change_on_install entries=3 Which of the following is true about this password file？（） [" If the REMOTE_LOGIN_PASSWORDFILE parameter is set to SHARED in the initialization parameter file， then a maximum of three users can be granted the SYSDBA or SYSOPER privileges."," If the REMOTE_LOGIN_PASSWORDFILE parameter is set to EXCLUSIVE in the initialization parameter file， then a maximum of three users can be granted the SYSDBA or SYSOPER privileges."," If the REMOTE_LOGIN_PASSWORDFILE parameter is set to SHARED in the initialization parameter file， then the SYSDBA and SYSOPER privileges can be granted to other users as long as space in the password file is"," If the REMOTE_LOGIN_PASSWORDFILE parameter is set to EXCLUSIVE in the initialization parameter file， then the SYSDBAand SYSOPER privileges can be granted to other users as long as space in the password file is available."]
n个相同的电容器并联，其总电容为（）。 ["nc","c","c\/"]
食品卫生标准中有哪些微生物学的指标？有哪些食品卫生学意义？
