A: LECT rank, AVG(salary) FROM people HAVING AVG(salary) > 1000 GROUP BY rank;
B: SELECT rank, AVG(salary) FROM people GROUP BY rank HAVING AVG(salary) > 1000
C: SELECT rank, AVG(salary) FROM people HAVING AVG(salary) > 1000 GROUP BY rank;
D: SELECT AVG(salary) FROM people GROUP BY rank HAVING AVG(salary) > 1000;
E: SELECT rank, AVG(salary) FROM people GROUP BY rank WHERE AVG(salary) > 1000;
举一反三
- 下面哪个语句关于GROUP BY 和HAVING语句的使用是正确的是?() A: SELECT<br/>JOB_ID, DEPARTMENT_ID, AVG(SALARY) FROM EMPLOYEES GROUP BY JOB_ID<br/>HAVING AVG(SALARY) > 3000; B: SELECT<br/>JOB_ID, DEPARTMENT_ID, AVG(SALARY) FROM EMPLOYEES GROUP BY JOB_ID,<br/>DEPARTMENT_ID HAVING AVG(SALARY) > 3000; C: SELECT<br/>JOB_ID, DEPARTMENT_ID, AVG(SALARY) FROM EMPLOYEES GROUP BY<br/>AVG(SALARY) HAVING AVG(SALARY) > 3000; D: FROM<br/>EMPLOYEES GROUP BY JOB_ID, DEPARTMENT_ID HAVING SALARY > 3000;
- 下面哪个语句关于GROUP BY 和HAVING语句的使用是正确的？（) A: A.SELECT JOB_ID , DEPARTMENT_ID , AVG(SALARY)FROM EMPLOYEES GROUP BY JOB_IDHAVING AVG(SALARY) > 3000; B: B.SELECT JOB_ID , DEPARTMENT_ID , AVG(SALARY)FROM EMPLOYEES GROUP BY JOB_ID ,DEPARTMENT_IDHAVING AVG(SALARY) > 3000; C: C.SELECT JOB_ID , DEPARTMENT_ID , AVG(SALARY)FROM EMPLOYEES GROUP BY AVG(SALARY)HAVING AVG(SALARY) > 3000; D: D.SELECT JOB_ID , DEPARTMENT_ID , AVG(SALARY)FROM EMPLOYEES GROUP BY JOB_ID , DEPARTMENT_IDHAVING SALARY > 3000;
- 表employees中有字段title表示职务，字段salary表示工资，求各个职务平均工资的T-SQL语句是（ ）。 A: SELECT AVG(SALARY) FROM EMPLOYEES WHERE TITLE B: SELECT AVG(SALARY) FROM EMPLOYEES GROUP BY TITLE C: SELECT AVG(TITLE) FROM EMPLOYEES GROUP BY SALARY D: SELECT SALARY FROM EMPLOYEES GROUP BY TITLE
- 以下语句错误的是（） A: SELECTrank，AVG（salary）FROMpeopleGROUPBYrankHAVINGAVG（salary）>1000 B: SELECTrank，AVG（salary）FROMpeopleHAVINGAVG（salary）>1000GROUPBYrank； C: SELECTAVG（salary）FROMpeopleGROUPBYrankHAVINGAVG（salary）>1000； D: SELECTrank，AVG（salary）FROMpeopleGROUPBYrankWHEREAVG（salary）>1000；
- 查询各类别的公司中比该类别最小工资高300元的公司、工资、类别 A: SELECT name, salary, type FROM job AS s1 WHERE salary > (SELECT min(salary) FROM job AS s2 WHERE s1.type = s2.type GROUP BY type) ; B: SELECT name, salary, type FROM job AS s1 WHERE salary > (SELECT min(salary) FROM job AS s2 WHERE s1.type = s2.type ) + 300; C: SELECT name, salary, type FROM job WHERE salary > 300; D: SELECT name, salary, type FROM job AS s1 WHERE salary > (SELECT min(salary) FROM job AS s2 WHERE s1.type = s2.type GROUP BY type) + 300;
内容
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在学生选课数据库中，查询平均成绩大于等于60分的同学，SQL语句为（ ） A: SELECT Sno, AVG(Grade) FROM SC GROUP BY Sno HAVING AVG(Grade)>=60; B: SELECT Sno FROM SC WHERE Grade>=60 GROUP BY Sno; C: SELECT Sno, Grade FROM SC GROUP BY Sno HAVING AVG(Grade)>=60; D: SELECT Sno FROM SC GROUP BY Sno HAVING Grade >=60;
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查询最低成绩大于85分的学生学号和平均成绩,可以使用的查询语句是: 。 A: SELECT Sno, AVG(Grade) FROM SC HAVING MIN(Grade) > 85 GROUP BY Sno; B: SELECT Sno, AVG(Grade) FROM SC GROUP BY Sno HAVING MIN(Grade) > 85; C: SELECT Sno, AVG(Grade) FROM SC WHERE MIN(Grade) > 85 GROUP BY Sno; D: SELECT Sno, AVG(Grade) FROM SC GROUP BY Sno WHERE MIN(Grade) > 85;
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按照课程号进行分组，统计学生平均成绩大于60分的学生的信息( ) A: select cid,avg(grade) from sc group by cid having avg(grade)>60 B: select cid,avg(grade) from student group by cid having avg(grade)>60 C: select cid,avg(grade) from course where avg(grade)>60 group by cid D: select cid,avg(grade) from student where avg(grade)>60 group by cid
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设有职工基本表：EMP(ENO，ENAME，AGE，SEX，SALARY)，其属性分别表示职工号、姓名、年龄、性别、工资。为每个工资低于平均工资的女职工加薪200元，以下SQL语句正确的是______。 A: UPDATE EMP SET SALARY=SALARY+200 B: WHERE SALAEY＜(SELECT AVG(SALARY)FROM EMP) AND SEX=’女’ C: UPDATE FROM EMP SET SALARY=200 D: WHERE SALAEY＜(SELECT SUM(SALARY)FROM EMP)AND SEX=’女’ E: UPDATE EMP SET SALARY=200 F: WHERE SALAEY＜(SELECT AVG(SALARY)FROM EMP)AND SEX=’女’ G: UPDATE FROM EMP SET SALARY=SALARY+200 H: WHERE SALAEY＜(SELECT SUM(SALARY)FROM EMP)AND SEX=’女’
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【单选题】显示图书信息表中不同书架图书的平均价格大于50元的书架号和平均价格。能得到正确结果的SELECT语句是 A: select casename,AVG(price) <br> from bookinfo group by casename where AVG(price)>50 B: select casename,AVG(price)>50 from bookinfo group by casename C: select casename,AVG(price) <br> from bookinfo<br> having AVG(price)>50 group by casename D: select casename,AVG(price) <br> from bookinfo group by casename<br> having AVG(price)>50