单项选择题
Scott issues the SQL statements: CREATE TABLE dept (deptno NUMBER(2), dname VARCHAR2(14), loc VARCHAR2(13)}; GRANT SELECT ON DEPT T0 SUE; If Sue needs to select from Scott's DEPT table, which command should she use?（）
A.SELECT*FROMDEPT； B.SELECT*FROMSCOTT.DEPT； C.SELECT*FROMDBASCOTTDEPT； D.SELECT*FROMALL_USERSWHEREUSER_NAME='；SCOTT'；ANDTABLENAME='；DEPT'；；
单项选择题 What is true about joining tables through an equijoin?（）
多项选择题 Which two statements about subqueries are true?（）
单项选择题 You need to calculate the total of all salaries in the accounting department. Which group function should you use?（）
