部门表(SM_DEPT)
| 字段名称 | 数据类型 | 是否主键 | 注释 |
|---|---|---|---|
| DEPT_ID | NUMBER | Y | 部门ID |
| PARENT_DEPARTMENT_ID | NUMBER | N | 上级部门 |
| DEPARTMENT_NAME | VARCHAR2(50) | N | 部门名称 |
用户部门中间表(SM_USER_DEPT)
| 字段名称 | 数据类型 | 是否主键 | 注释 |
|---|---|---|---|
| ID | NUMBER | Y | 主键 |
| DEPT_ID | NUMBER | N | 部门ID |
| USER_ID | NUMBER | N | 用户ID |
用户表(SM_USER)
| 字段名称 | 数据类型 | 是否主键 | 注释 |
|---|---|---|---|
| USER_ID | NUMBER | Y | 用户ID |
| USER_NAME | VARCHAR2(50) | N | 用户名称 |
| LOGON_NAME | VARCHAR2(50) | N | 登录名 |
| IS_SALES | VARCHAR2(1) | N | 是否为业务员 |
客户信息表(CTM_CUSTOMERS)
| 字段名称 | 数据类型 | 是否主键 | 注释 |
|---|---|---|---|
| CUSTOMER_ID | NUMBER | Y | 客户ID |
| CUSTOMER_NAME | VARCHAR2(50) | N | 客户姓名 |
| CITY | VARCHAR2(50) | N | 所属城市 |
| STATE | VARCHAR2(25) | N | 所属州 |
| ZIP_CODE | VARCHAR2(10) | N | 邮政编码 |
| CONTACT_NAME | VARCHAR2(50) | N | 联系人 |
| ADDRESS | VARCHAR2(50) | N | 联系地址 |
| TYPE | VARCHAR2(50) | N | 客户类型 |
| COMMENTS | VARCHAR2(100) | N | 备注 |
订单头表(PIM_HEADERS)
| 字段名称 | 数据类型 | 是否主键 | 注释 |
|---|---|---|---|
| PI_ID | NUMBER | Y | 订单ID |
| PI_NO | VARCHAR2(50) | N | 订单号 |
| CREATION_DATE | DATE | N | 创建日期 |
| CUSTOMER_ID | NUMBER | N | 关联客户表的客户ID |
| OPERATOR_ID | NUMBER | N | 关联用户表的用户ID |
| CURRENCY_CODE | VARCHAR2(50) | N | 订单币种 |
| EXCHAHGE_RATE | NUMBER | N | 汇率 |
订单行表(PIM_LINES)
| 字段名称 | 数据类型 | 是否主键 | 注释 |
|---|---|---|---|
| PI_ID | NUMBER | N | 订单ID |
| PI_LINES_ID | VARCHAR2(50) | Y | 订单行ID |
| PRODUCT_CODE | NUMBER | N | 产品编码 |
| QUANTITY | NUMBER | N | 产品数量 |
| PRICE | NUMBER | N | 产品单价 |
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;