部门表(SM_DEPT)
用户部门中间表(SM_USER_DEPT)
用户表(SM_USER)
客户信息表(CTM_CUSTOMERS)
订单头表(PIM_HEADERS)
订单行表(PIM_LINES)
问题
1.编写SQL语句，查询PIM_HEADERS表，符合日期在2011-03-01和2011-03-25之间的PI订单，显示订单号，创建日志，订单客户名称，订单业务员名称
select t1.PI_NO ,t1.CREATION_DATE ,t2.CUSTOM_NAME ,t3.USER_NAME from (select * from PIM_HEADERS where CREATION_DATE between to_date('2011-03-01','yyyy-mm-dd') and to_date('2011-03-25','yyyy-mm-dd') ) t1 left join CTM_CUSTOMERS t2 on t1.CUSTOMER_ID = t2.CUSTOMER_ID left join SM_USER t3 on t1.OPERATOR_ID = t3.USER_ID
2.编写SQL语句，查询所有部门名称及其给部门的业务员的个数，部门在2011-01-01到2011-03-01之间创建的PI订单数
select t1._DEPARTMENT_NAME,count(t2.USER_NAME),count(t3.PI_NO) from SM_DEPT t1 left join SM_USER_DEPT t2 on t1.dept_id = t2.dept_id left join (select * from PIM_HEADERS where CREATION_DATE between to_date('2011-01-01','yyyy-mm-dd') and to_date('2011-03-01','yyyy-mm-dd') ) t3 on t2.user_id = t3.OPERATOR_ID group by t1.DEPT_ID
3.编写SQL语句，查询所有客户及其相关PI订单号，PI创建日期，PI订单相关业务员姓名及其业务所属部门名称
select t1.* ,t2.PI_NO ,t2.CREATION_DATE ,t3.USER_NAME ,t5.DEPARTMENT_NAME from SM_CUSTOMERS t1 left join PIM_HEADERS t2 on t1.CUSTOER_ID = t2.CUSTOMER_ID left join SM_USER t3 on t2.OPERATOR_ID = t3.user_id left join SM_USER_DEPT t4 on t3.USER_ID = t4.USER_ID left join SM_DEPT t5 on t4.DEPT_ID = t5.DEPT_ID
4.编写SQL语句，更新没有下过PI订单的客户名称的备注为“从未发生业务往来”
update CTM_CUSTOMERS t1 set COMMENTS = '从未反生业务往来' where not exists ( select PI_NO from PIM_HEADERS t2 where t2.CUSTOMER_ID = t1.CUSTOMER_ID ) ; commit;
5.编写SQL语句，查询所有客户名称及其所属城市，并按照城市名称降序，用户名称升序排序
select CUSTOM_NAME,CITY from CTM_CUSTOMERS order by city desc,CUSTOMER_NAME asc
6.编写SQL语句，查询出所有的客户的PI订单的下单金额，显示客户名称，订单币种，订单总数量及订单总额
select t2.CUSTOMER_NAME ,t1.CURRENCY_CODE ,t3.TOTAL ,t4.TOTAL_MONEY from PIM_HEADERS t1 left join CTM_CUSTOMERS t2 on t1.CUSTOMER_ID = t2.CUSTOMER_ID left join ( select PI_ID,sum(QUANTITY) TOTAL,sum(QUANTITY*PRICE) TOTAL_MONEY from PIM_LINES group by PI_ID ) t3 on t1.PI_ID = t3.PI_ID;
7.编写函数，函数需传入部门ID，返回结果部门对应所有业务员姓名连接起来，中间用逗号隔开
create or replace function getUserByDeptId ( dept_id number) return varchar2 is res varchar2(200); cursor mycursor(did number) is select t2.CUSTOMER_NAME from (select * from SM_USER_DEPT where dept_id = did ) t1 left join SM_USER t2 on t1.USER_ID = t2.USER_ID ; begin for c_row in mycursor(dept_id) loop res := res ||','|| c_row end loop; return res; end;
