A. 仅SELECT B. SELECT,FROM C. SELECT,GROUP D. SELECT,INTO
A.T B. WHILE C. WHERE D. IF
A. UPDATE B. SELECT C. DELETE D. INSERT
A. select sal+1 from emp; B. select sal*10,sal*deptno from emp; C. 查询语句不能使用运算符号 D. select sal*10,deptno*10 from emp;
A. ORDER BY DESC NAME B. ORDER BY NAME DESC C. ORDER BY NAME ASC D. ORDER BY ASC NAME
A. COUNT B. MAX C. AVG D. SUM
A. select B. group by C. where D. from