Select 实例精解.docx

Select 实例精解-1、查找员工的编号、姓名、部门和出生日期，如果出生日期为空值，-显示日期不详,并按部门排序输出,日期格式为yyyy-mm-dd。select emp_no ,emp_name ,dept ,isnull(convert(char(10),birthday,120),日期不详) birthdayfrom employeeorder by dept -2、查找与喻自强在同一个单位的员工姓名、性别、部门和职称select emp_no,emp_name,dept,titlefrom employeewhere emp_name喻自强 and dept in(select dept from employeewhere emp_name=喻自强)-3、按部门进行汇总，统计每个部门的总工资select dept,sum(salary)from employeegroup by dept-4、查找商品名称为14寸显示器商品的销售情况，-显示该商品的编号、销售数量、单价和金额select d_id,qty,unit_price,unit_price*qty totpricefrom sale_item a,product bwhere d_id=d_id and prod_name=14寸显示器-5、在销售明细表中按产品编号进行汇总，统计每种产品的销售数量和金额select prod_id,sum(qty) totqty,sum(qty*unit_price) totpricefrom sale_itemgroup by prod_id-6、使用convert函数按客户编号统计每个客户1996年的订单总金额select cust_id,sum(tot_amt) totpricefrom saleswhere convert(char(4),order_date,120)=1996group by cust_id-7、查找有销售记录的客户编号、名称和订单总额select a.cust_id,cust_name,sum(tot_amt) totpricefrom customer a,sales bwhere a.cust_id=b.cust_idgroup by a.cust_id,cust_name-8、查找在1997年中有销售记录的客户编号、名称和订单总额select a.cust_id,cust_name,sum(tot_amt) totpricefrom customer a,sales bwhere a.cust_id=b.cust_id and convert(char(4),order_date,120)=1997group by a.cust_id,cust_name-9、查找一次销售最大的销售记录select order_no,cust_id,sale_id,tot_amtfrom saleswhere tot_amt=(select max(tot_amt)from sales)-10、查找至少有3次销售的业务员名单和销售日期select emp_name,order_datefrom employee a,sales b where emp_no=sale_id and a.emp_no in(select sale_idfrom salesgroup by sale_idhaving count(*)=3)order by emp_name-11、用存在量词查找没有订货记录的客户名称select cust_namefrom customer awhere not exists(select *from sales bwhere a.cust_id=b.cust_id)-12、使用左外连接查找每个客户的客户编号、名称、订货日期、订单金额-订货日期不要显示时间，日期格式为yyyy-mm-dd-按客户编号排序，同一客户再按订单降序排序输出select a.cust_id,cust_name,convert(char(10),order_date,120),tot_amtfrom customer a left outer join sales b on a.cust_id=b.cust_idorder by a.cust_id,tot_amt desc-13、查找16M DRAM的销售情况，要求显示相应的销售员的姓名、-性别，销售日期、销售数量和金额，其中性别用男、女表示select emp_name 姓名, 性别= case a.sex when m then 男when f then 女 else 未end,销售日期= isnull(convert(char(10),c.order_date,120),日期不详),qty 数量, qty*unit_price as 金额from employee a, sales b, sale_item c,product dwhere d_name=16M DRAM and d_id=d_id anda.emp_no=b.sale_id and b.order_no=c.order_no-14、查找每个人的销售记录，要求显示销售员的编号、姓名、性别、-产品名称、数量、单价、金额和销售日期select emp_no 编号,emp_name 姓名, 性别= case a.sex when m then 男when f then 女 else 未end,prod_name 产品名称,销售日期= isnull(convert(char(10),c.order_date,120),日期不详),qty 数量, qty*unit_price as 金额from employee a left outer join sales b on a.emp_no=b.sale_id , sale_item c,product dwhere d_id=d_id and b.order_no=c.order_no-15、查找销售金额最大的客户名称和总货款select cust_name,d.cust_sumfrom customer a,(select cust_id,cust_sumfrom (select cust_id, sum(tot_amt) as cust_sumfrom salesgroup by cust_id ) bwhere b.cust_sum = ( select max(cust_sum)from (select cust_id, sum(tot_amt) as cust_sumfrom salesgroup by cust_id ) c ) dwhere a.cust_id=d.cust_id -16、查找销售总额少于1000元的销售员编号、姓名和销售额select emp_no,emp_name,d.sale_sumfrom employee a,(select sale_id,sale_sumfrom (select sale_id, sum(tot_amt) as sale_sumfrom salesgroup by sale_id ) bwhere b.sale_sum =3) h )-18、查找至少与世界技术开发公司销售相同的客户编号、名称和商品编号、商品名称、数量和金额select a.cust_id,cust_name,d_id,prod_name,qty,qty*unit_pricefrom customer a, product b, sales c, sale_item dwhere a.cust_id=c.cust_id and d_id=d_id and c.order_no=d.order_no and not exists(select f.*from customer x ,sales e, sale_item fwhere cust_name=世界技术开发公司 and x.cust_id=e.cust_id ande.order_no=f.order_no and not exists( select g.*from sale_item g, sales hwhere d_id = d_id and g.order_no=h.order_no andh.cust_id=a.cust_id)19、查找表中所有姓刘的职工的工号，部门，薪水select emp_no,emp_name,dept,salaryfrom employeewhere emp_name like 刘%20、查找所有定单金额高于2000的所有客户编号select cust_idfrom saleswhere tot_amt200021、统计表中员工的薪水在4000-6000之间的人数select count(*)as 人数from employeewhere salary between 4000 and 600022、查询表中的同一部门的职工的平均工资，但只查询住址是上海市的员工select avg(salary) avg_sal,dept from employee where addr like 上海市%group by dept23、将表中住址为上海市的员工住址改为北京市update employee set addr like 北京市where addr like 上海市24、查找业务部或会计部的女员工的基本信息。select emp_no,emp_name,deptfrom employee where sex=Fand dept in (业务,会计)25、显示每种产品的销售金额总和，并依销售金额由大到小输出。select prod_id ,sum(qty*unit_price)from sale_item group by prod_idorder by sum(qty*unit_price) desc26、选取编号界于C0001和C0004的客户编号、客户名称、客户地址。select CUST_ID,cust_name,addrfrom customer where cust_id between C0001 AND C000427、计算出一共销售了几种产品。select count(distinct prod_id) as 共销售产品数from sale_item 28、将业务部员工的薪水上调3%。update employeeset salary=salary*1.03where dept=业务29、由employee表中查找出薪水最低的员工信息。select *from employeewhere salary=(select min(salary )from employee )30、使用join查询客户姓名为客户丙所购货物的客户名称,定单金额,定货日期,电话号码select a.cust_id,b.tot_amt,b.order_date,a.tel_nofrom customer a join sales bon a.cust_id=b.cust_id and cust_name like 客户丙31、由sales表中查找出订单金额大于E0013业务员在1996/10/15这天所接每一张订单的金额的所有订单。select *from saleswhere tot_amtall(select tot_amt from sales where sale_id=E0013and order_date=1996/10/15)order by tot_amt32、计算P0001产品的平均销售单价select avg(unit_price)from sale_itemwhere prod_id=P000133、找出公司女员工所接的定单select sale_id,tot_amtfrom saleswhere sale_id in (select sale_id from employeewhere sex=F)34、找出同一天进入公司服务的员工select a.emp_no,a.emp_name,a.date_hiredfrom employee ajoin employee bon (a.emp_no!=b.emp_no and a.date_hired=b.date_hired)order by a.date_hired35、找出目前业绩超过232000元的员工编号和姓名。select emp_no,emp_namefrom employee where emp_no in(select sale_idfrom sales group by sale_idhaving sum(tot_amt)( select avg(salary) from employee)38、 找出目前销售业绩超过10000元的业务员编号及销售业绩，并按销售业绩从大到小排序。Select sale_id ,sum(tot_amt)from sales group by sale_id having sum(tot_amt)10000order by sum(tot_amt) desc39、 找出公司男业务员所接且订单金额超过2000元的订单号及订单金额。 Select order_no,tot_amtFrom sales ,employeeWhere sale_id=emp_no and sex=M and tot_amt200040、 查询sales表中订单金额最高的订单号及订单金额。Select order_no,tot_amt from sales where tot_amt=(select max(tot_amt) from sales)41、 查询在每张订单中订购金额超过4000元的客户名及其地址。Select cust_name,addr from customer a,sales b where a.cust_id=b.cust_id and tot_amt400042、 求出每位客户的总订购金额，显示出客户号及总订购金额，并按总订购金额降序排列。Select cust_id,sum(tot_amt) from salesGroup by cust_id Order by sum(tot_amt) desc43、 求每位客户订购的每种产品的总数量及平均单价，并按客户号，产品号从小到大排列。Select cust_id,prod_id,sum(qty),sum(qty*unit_price)/sum(qty)From sales a, sale_item bWhere a.order_no=b.order_noGroup by cust_id,prod_idOrder by cust_id,prod_id44、 查询订购了三种以上产品的订单号。Select order_no from sale_itemGroup by order_noHaving count(*)345、 查询订购的产品至少包含了订单3号中所订购产品的订单。Select distinct order_noFrom sale_item aWhere order_no3and not exists ( Select * from sale_item b where order_no =3 and not exists (select * from sale_item c where c.order_no=a.order_no and d_id=d_id)46、 在sales表中查找出订单金额大于E0013业务员在1996/11/10这天所接每一张订单的金额的所有订单，并显示承接这些订单的业务员和该订单的金额。Select sale_id,tot_amt from saleswhere tot_amtall(select tot_amt from sales where sale_id=E0013 and order_date=1996-11-10) 47、 查询末承接业务的员工的信息。Select *From employee aWhere not exists (select * from sales b where a.emp_no=b.sale_id)48、 查询来自上海市的客户的姓名，电话、订单号及订单金额。Select cust_name,tel_no,order_no,tot_amtFrom customer a ,sales bWhere a.cust_id=b.cust_id and addr=上海市49、 查询每位业务员各个月的业绩，并按业务员编号、月份降序排序。Select sale_id,month(order_date), sum(tot_amt) from sales group by sale_id,month(order_date)order by sale_id,month(order_date) desc50、 求每种产品的总销售数量及总销售金额，要求显示出产品编号、产品名称，总数量及总金额，并按产品号从小到大排列。 Select d_id,prod_name,sum(qty),sum(qty*unit_price)From sale_item a,product bWhere d_id=d_id Group by d_id,