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[导入]sql 语句

 

说明:查询从第30条到第40条的记录数 

SQL:select top 10 * from temp where id not in (select top 30 id from temp order by id asc) order by id asc 

说明:复制表(只复制结构,源表名:a 新表名:b)  

SQL: select * into b from a where 1<>1     

  说明:拷贝表(拷贝数据,源表名:a 目标表名:b)  

  SQL: insert into b(a, b, c) select d,e,f from b;     

  说明:显示文章、提交人和最后回复时间  

  SQL: select a.title,a.username,b.adddate from table a,(select max(adddate) adddate from table where table.title=a.title) b    

  说明:外连接查询(表名1:a 表名2:b)  

  SQL: select a.a, a.b, a.c, b.c, b.d, b.f from a LEFT OUT JOIN b ON a.a = b.c     

  说明:日程安排提前五分钟提醒  

  SQL: select * from 日程安排 where datediff(’minute’,f开始时间,getdate())>5     

  说明:两张关联表,删除主表中已经在副表中没有的信息  

  SQL:  

  delete from info where not exists ( select * from infobz where info.infid=infobz.infid )     

  说明:--  

  SQL:  

  SELECT A.NUM, A.NAME, B.UPD_DATE, B.PREV_UPD_DATE FROM TABLE1,(SELECT X.NUM, X.UPD_DATE, Y.UPD_DATE PREV_UPD_DATE FROM (SELECT NUM, UPD_DATE, INBOUND_QTY, STOCK_ONHAND FROM TABLE2 WHERE TO_CHAR(UPD_DATE,’YYYY/MM’) = TO_CHAR(SYSDATE, ’YYYY/MM’)) X, (SELECT NUM, UPD_DATE, STOCK_ONHAND FROM TABLE2 WHERE TO_CHAR(UPD_DATE,’YYYY/MM’) = TO_CHAR(TO_DATE(TO_CHAR(SYSDATE, ’YYYY/MM’) || ’/01’,’YYYY/MM/DD’) - 1, ’YYYY/MM’) ) Y, WHERE X.NUM = Y.NUM (+)AND X.INBOUND_QTY + NVL(Y.STOCK_ONHAND,0) <> X.STOCK_ONHAND ) B WHERE A.NUM = B.NUM     

  说明:--  

  SQL:  

  select * from studentinfo where not exists(select * from student where studentinfo.id=student.id) and 系名称=’"&strdepartmentname&"’ and 专业名称=’"&strprofessionname&"’ order by 性别,生源地,高考总成绩 

说明: 从数据库中去一年的各单位电话费统计(电话费定额贺电化肥清单两个表来源)  

  SQL:  

  SELECT a.userper, a.tel, a.standfee, TO_CHAR(a.telfeedate, \’yyyy\’) AS telyear, SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’01\’, a.factration)) AS JAN, SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’02\’, a.factration)) AS FRI, SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’03\’, a.factration)) AS MAR, SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’04\’, a.factration)) AS APR, SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’05\’, a.factration)) AS MAY, SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’06\’, a.factration)) AS JUE,SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’07\’, a.factration)) AS JUL, SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’08\’, a.factration)) AS AGU, SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’09\’, a.factration)) AS SEP, SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’10\’, a.factration)) AS OCT, SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’11\’, a.factration)) AS NOV,SUM(decode(TO_CHAR(a.telfeedate, \’mm\’), \’12\’, a.factration)) AS DEC FROM (SELECT a.userper, a.tel, a.standfee, b.telfeedate, b.factration FROM TELFEESTAND a, TELFEE b WHERE a.tel = b.telfax) a GROUP BY a.userper, a.tel, a.standfee, TO_CHAR(a.telfeedate, \’yyyy\’)     

  说明:四表联查问题:  

  SQL: select * from a left inner join b on a.a=b.b right inner join c on a.a=c.c inner join d on a.a=d.d where .....     

  说明:得到表中最小的未使用的ID号  

Sql 多条件查询的一种简单的方法  

以后我们做多条件查询,一种是排列结合,另一种是动态拼接SQL  

如:我们要有两个条件,一个日期@addDate,一个是@name  

第一种写法是  

if (@addDate is not null) and (@name <> ’’)  

select * from table where addDate = @addDate and name = @name  

else if (@addDate is not null) and (@name =’’)  

select * from table where addDate = @addDate  

else if(@addDate is null) and (@name <> ’’)  

select * from table where and name = @name  

else if(@addDate is null) and (@name = ’’)  

select * from table  

第二种就是动态组成SQL,通过exec来执行,我就不写,  

昨天我想到一种办法  

select * from table where (addDate = @addDate or @addDate is null) and (name = @name or @name = ’’)  

  SQL:  

  SELECT (CASE WHEN EXISTS(SELECT * FROM Handle b WHERE b.HandleID = 1) THEN MIN(HandleID) + 1 ELSE 1 END) as HandleID FROM Handle WHERE NOT HandleID IN (SELECT a.HandleID - 1 FROM Handle a) 

-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’) birthday from employee order 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,title from employee where emp_name<>’喻自强’ and dept in (select dept from employee where 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 employee group 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 a.prod_id,qty,unit_price,unit_price*qty totprice from sale_item a,product b where a.prod_id=b.prod_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) totprice from sale_item group 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) totprice from sales where convert(char(4),order_date,120)=’1996’ group 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) totprice from customer a,sales b where a.cust_id=b.cust_id group 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) totprice from customer a,sales b where a.cust_id=b.cust_id and convert(char(4),order_date,120)=’1997’ group 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_amt from sales where 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_date from employee a,sales b where emp_no=sale_id and a.emp_no in (select sale_id from sales group by sale_id having 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_name from customer a where not exists (select * from sales b where 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_amt from customer a left outer join sales b on a.cust_id=b.cust_id order 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 d where d.prod_name=’16M DRAM’ and d.prod_id=c.prod_id and a.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 d where d.prod_id=c.prod_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_sum from customer a, (select cust_id,cust_sum from (select cust_id, sum(tot_amt) as cust_sum from sales group by cust_id ) b where b.cust_sum = ( select max(cust_sum) from (select cust_id, sum(tot_amt) as cust_sum from sales group by cust_id ) c ) ) d where 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_sum from employee a, (select sale_id,sale_sum from (select sale_id, sum(tot_amt) as sale_sum from sales group by sale_id ) b where b.sale_sum <1000 ) d where a.emp_no=d.sale_id  

--17、查找至少销售了3种商品的客户编号、客户名称、商品编号、商品名称、数量和金额 select a.cust_id,cust_name,b.prod_id,prod_name,d.qty,d.qty*d.unit_price from customer a, product b, sales c, sale_item d where a.cust_id=c.cust_id and d.prod_id=b.prod_id and c.order_no=d.order_no and a.cust_id in ( select cust_id from (select cust_id,count(distinct prod_id) prodid from (select cust_id,prod_id from sales e,sale_item f where e.order_no=f.order_no) g group by cust_id having count(distinct prod_id)>=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.prod_id,prod_name,qty,qty*unit_price from customer a, product b, sales c, sale_item d where a.cust_id=c.cust_id and d.prod_id=b.prod_id and c.order_no=d.order_no and not exists (select f.* from customer x ,sales e, sale_item f where cust_name=’世界技术开发公司’ and x.cust_id=e.cust_id and e.order_no=f.order_no and not exists ( select g.* from sale_item g, sales h where g.prod_id = f.prod_id and g.order_no=h.order_no and h.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,salary from employee where 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_id from sales where tot_amt>2000  

21、统计表中员工的薪水在4000-6000之间的人数 select count(*)as 人数 from employee where salary between 4000 and 6000  

22、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 dept  

23、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,dept from employee where sex=’F’and 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_id order by sum(qty*unit_price) desc  

26、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,addr from customer where cust_id between ’C0001’ AND ’C0004’  

27、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 employee set salary=salary*1.03 where dept=’业务’  

29、由employee表中查找出薪水最低的员工信息。 select * from employee where 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_no from customer a join sales b on 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 sales where tot_amt>all (select tot_amt from sales where sale_id=’E0013’and order_date=’1996/10/15’) order by tot_amt  

32、计算’P0001’产品的平均销售单价 select avg(unit_price) from sale_item where prod_id=’P0001’  

33、找出公司女员工所接的定单 select sale_id,tot_amt from sales where sale_id in (select sale_id from employee where 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_hired from employee a join employee b on (a.emp_no!=b.emp_no and a.date_hired=b.date_hired) order by a.date_hired  

35、找出目前业绩超过232000元的员工编号和姓名。 select emp_no,emp_name from employee where emp_no in (select sale_id from sales group by sale_id having sum(tot_amt)<232000)  

36、查询出employee表中所有女职工的平均工资和住址在"上海市"的所有女职工的平均工资 select avg(salary) from employee where sex like ’f’ union select avg(salary) from employee where sex like ’f’ and addr like ’上海市%’  

37、在employee表中查询薪水超过员工平均薪水的员工信息。 Select * from employee where salary>( 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)>10000 order by sum(tot_amt) desc  

39、 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_amt From sales ,employee Where sale_id=emp_no and sex=’M’ and tot_amt>2000  

40、 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_amt>4000  

42、 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 sales Group by cust_id Order by sum(tot_amt) desc  

43、 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 b Where a.order_no=b.order_no Group by cust_id,prod_id Order by cust_id,prod_id  

44、 查询订购了三种以上产品的订单号。 Select order_no from sale_item Group by order_no Having count(*)>3  

45、 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_no From sale_item a Where order_no<>’3’and 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 c.prod_id=b.prod_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 sales where tot_amt>all(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 a Where 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_amt From customer a ,sales b Where 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) desc  

50、 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 a.prod_id,prod_name,sum(qty),sum(qty*unit_price) From sale_item a,product b Where a.prod_id=b.prod_id Group by a.prod_id,prod_name Order by a.prod_id  

51、 查询总订购金额超过’C0002’客户的总订购金额的客户号,客户名及其住址。 Select cust_id, cust_name,addr From customer Where cust_id in (select cust_id from sales Group by cust_id Having sum(tot_amt)> (Select sum(tot_amt) from sales where cust_id=’C0002’))  

52、 查询业绩最好的的业务员号、业务员名及其总销售金额。 select emp_no,emp_name,sum(tot_amt) from employee a,sales b where a.emp_no=b.sale_id group by emp_no,emp_name having sum(tot_amt)= (select max(totamt) from (select sale_id,sum(tot_amt) totamt from sales group by sale_id) c)  

53、 查询每位客户所订购的每种产品的详细清单,要求显示出客户号,客户名,产品号,产品名,数量及单价。 select a.cust_id, cust_name,c.prod_id,prod_name,qty, unit_price from customer a,sales b, sale_item c ,product d where a.cust_id=b.cust_id and b.order_no=c.order_no and c.prod_id=d.prod_id  

54、 求各部门的平均薪水,要求按平均薪水从小到大排序。 select dept,avg(salary) from employee group by dept order by avg(salary) 

55、导入数据 imp80 system/manager@orcl file=D:\TEMP\dbfile1.dmp full=n fromuser=yh1 touser=yh2; 

56、多表更新 update table1 a set a.column1=(select b.column1 from table2 b where a.column2=b.2column2) where a.column3 is not null; 


文章来源:http://xialei222.blog.163.com/blog/static/4804673820081208484387

posted on 2008-02-20 08:48  夏雷  阅读(148)  评论(0编辑  收藏  举报