A、SELECT—FROM—GROUP—WHERE—ORDER
B、FROM--WHERE——GROUP——ORDER——SELECT
C、FROM——WHERE——GROUP——SELECT——ORDER
D、SELECT——FROM——WHERE——GROUP——ORDER
更多“对由SELECT--FROM—WHERE—GROUP--ORDER组成的SQL语句，其在被DBMS处理时，各子句的执行次序为（）”相关的问题
A、A.SELECT学生．学号，姓名FROM学生，选课WHERE学生．学号=选课．学号
B.SELECT学生．学号，姓名FROM学生，选课WHERE学生．学号=选课．学号
C.SELECT学生．学号，姓名FROM学生，选课WHERE学生．学号=选课．学号
D.SELECT学生．学号，姓名FROM学生，选课WHERE学生．学号=选课．学号AND
A、A.学号，姓名FROM学生，选课WHERE学生．学号=选课．学号
B.学号，姓名FROM学生，选课WHERE学生．学号=选课．学号
C.学号，姓名FROM学生，选课WHERE学生．学号=选课．学号
D.学号，姓名FROM学生，选课WHERE学生．学号=选课．学号AND
A、select * from emp where comm=''; B、select * from emp where comm=null; C、select * from emp where nvl(comm)=0; D、select * from emp where comm is null; E、select * from emp where nvl(comm,0)=0;
A、Select * from 员工 where 姓名 =’_玛丽_’ B、Select * from 员工 where 姓名 =’%玛丽_’ C、Select * from 员工 where 姓名 like ‘_玛丽%’ D、Select * from 员工 where 姓名 like ‘%玛丽%’
A、SELECT * FROM employees where salary > (SELECT MIN(salary) FROM employees GROUP BY department _ id); B、SELECT * FROM employees WHERE salary = (SELECT AVG(salary) FROM employees GROUP BY department _ id); C、SELECT distinct department_id FROM employees Where salary > ANY (SELECT AVG(salary) FROM employees GROUP BY department _ id); D、SELECT department_id FROM employees WHERE SALARY > ALL (SELECT AVG(salary) FROM employees GROUP BY department _ id); E、SELECT last_name FROM employees Where salary > ANY (SELECT MAX(salary) FROM employees GROUP BY department _ id); F、SELECT department_id FROM employees WHERE salary > ALL (SELECT AVG(salary) FROM employees GROUP BY ANG (SALARY));
A、Select email from student where email!=null B、Select email from student where emailnotisnull C、Select email from student where email<>null D、Select email from student where emailisnotnull
A、select * from emp where ename in 'S%'; B、select * from emp where ename='S%'; C、select * from emp where ename like 'S%'; D、select * from emp where ename like 'S_';
A、Select* From Student Where Sex=’男’ B、Select* From Student Where Number NotIn（Select Number From Student Where Sex<>=’男’） C、Select* From Student Where NumberIn（Select Numbe rFrom Student Where Sex=’男’） D、Select* From Student Where Sex<>’男’
A、SELECT *FROM 学生 WHERE 专业=’软件’ ORDER BY 年龄 B、SELECT *FROM 学生表 WHERE 专业=‘软件’ C、SELECT *FROM 学生表 WHERE 专业=‘软件’ WHERE 专业= ‘软件AVG 年龄 D、SELECT *FROM 学生表 WHERE 专业=‘软件’ DISTINCT 年龄 11
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