Examine the structure of the EMPLOYEES, DEPARTMENTS, and TAX tables. EMPLOYEES NOT NULL, Primary EMPLOYEE_ID NUMBER Key VARCHAR2 EMP_NAME (30) VARCHAR2 JOB_ID (20) SALARY NUMBER References MGR_ID NUMBER EMPLOYEE_ID column DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table DEPARTMENTS NOT NULL, DEPARTMENT_ID NUMBER Primary Key VARCHAR2 DEPARTMENT_NAME 30 References MGR_ID column MGR_ID NUMBER of the EMPLOYEES table TAX MIN_SALARY NUMBER MAX_SALARY NUMBER TAX_PERCENT NUMBER For which situation would you use a nonequijoin query?（） To find the tax percentage for each of the employees.。 To list the name, job id, and manager name for all the employees.。 To find the name, salary, and department name of employees who are not working with Smith.。 To find the number of employees working for the Administrative department and earning less then 4000.。 To display name, salary, manager ID, and department name of all the employees, even if the employees do not have a department ID assigned.。
开井操作，泵压升起后，井口人员接到命令，应把回压阀门先打开，接着把生产闸门打开（） 全打开。 打开1/2。 打开1/3。
What are four capabilities of the mysql client program?（） Creating, dropping, and modifying tables and indexes。 Initiating a binary backup of the database by using the START BACKUP command。 Displaying replication status information。 Shutting down the server by using the SHUTDOWN command。 Creating and dropping databases。 Creating and administering user。
Given： 11. public void genNumbers（） { 12. ArrayList numbers = new ArrayList（）； 13. for （int i=0； i<10； i++） { 14. int value = i * （（int） Math.random（））； 15. Integer intObj = new Integer（value）； 16. numbers.add（intObj）； 17. } 18. System.out.println（numbers）； 19. } Which line of code marks the earliest point that an object referenced by intObj becomes a candidate for garbage collection？（） Line 19。 The object is NOT a candidate for garbage collection.。 Line 17。 Line 16。 Line 18。
L-O-R封堵三通在组装前，塞柄的止回球阀要涂（），以防止焊渣进入开口处。 润滑脂。 润滑漆。 润滑油。 防锈漆。
In WebLogic 10.3.6 and 12c, transaction logs can optionally write to a JDBC store instead of a file store on the file system. Identify the three benefits as a result of this capability.（）
