我有表如下START WITH和甲骨文CONNECT BY SQL
账户
CUSTOMER_ID PAYING_ACCOUNT_ID PARENT_ACCOUNT_ID ACCOUNT_ID COMPANY_ID
24669 24669 24669 24669 0
24671 24671 24669 24671 0
24670 24670 24669 24670 0
3385217 3385217 24670 3385217 0
158 158 158 158 0
159 159 158 159 0
160 160 159 160 0
161 161 160 161 0
162 162 160 162 0
180 180 180 180 0
这是DDL
CREATE TABLE "SYSTEM"."ACCOUNT"
("CUSTOMER_ID" NUMBER(20,0) NOT NULL ENABLE,
"PAYING_ACCOUNT_ID" NUMBER(20,0),
"PARENT_ACCOUNT_ID" NUMBER(20,0),
"ACCOUNT_ID" NUMBER,
"COMPANY_ID" NUMBER)
这是我的查询
select lpad(' ', 2*level) || A.ACCOUNT_ID AS LEVEL_LABEL,
LEVEL,
A.*
from ACCOUNT A
start with PARENT_ACCOUNT_ID IN
(select PARENT_ACCOUNT_ID
from ACCOUNT
where ACCOUNT_ID IN
(select PARENT_ACCOUNT_ID
from ACCOUNT
where parent_account_id != account_id)
and ACCOUNT_ID = PARENT_ACCOUNT_ID)
CONNECT BY NOCYCLE PRIOR A.ACCOUNT_ID = A.PARENT_ACCOUNT_ID;
查询的主要目的是选择具有层次关系的数据,即PARENT_ACCOUNT_ID & ACCOUNT_ID,但是我得到了查询返回的重复数据。
任何建议非常感谢。由于
parent_account_id和account_id如何在同一时间(最内在的查询)不同和相等?这可能不是您的原始查询,因为它应该产生完全为0的结果,因此根本没有重复。 – Benoit 2012-02-13 09:25:06