我有两个表table1和table2
CREATE TABLE TABLE1 (
EMPLID VARCHAR2(11) NOT NULL,
COMPANY VARCHAR2(3) NOT NULL,
EMPL_RCD SMALLINT NOT NULL,
BALANCE_ID VARCHAR2(2) NOT NULL,
BALANCE_YEAR SMALLINT NOT NULL,
BALANCE_QTR SMALLINT NOT NULL,
BALANCE_PERIOD SMALLINT NOT NULL,
SPCL_BALANCE VARCHAR2(1) NOT NULL,
ERNCD VARCHAR2(3) NOT NULL,
HRS_QTD DECIMAL(13, 2) NOT NULL,
GRS_QTD DECIMAL(13, 2) NOT NULL,
HRS_YTD DECIMAL(13, 2) NOT NULL,
GRS_YTD DECIMAL(13, 2) NOT NULL,
HRS_MTD DECIMAL(13, 2) NOT NULL,
GRS_MTD DECIMAL(13, 2) NOT NULL);
CREATE TABLE TABLE2(EMPLID VARCHAR2(11) NOT NULL,
COMPANY VARCHAR2(3) NOT NULL,
BALANCE_ID VARCHAR2(2) NOT NULL,
BALANCE_YEAR SMALLINT NOT NULL,
BALANCE_QTR SMALLINT NOT NULL,
BALANCE_PERIOD SMALLINT NOT NULL,
EMPL_RCD SMALLINT NOT NULL,
SPCL_BALANCE VARCHAR2(1) NOT NULL,
ERNCD VARCHAR2(3) NOT NULL,
HRS_YTD DECIMAL(13, 2) NOT NULL,
HRS_QTD DECIMAL(13, 2) NOT NULL,
HRS_MTD DECIMAL(13, 2) NOT NULL,
GRS_YTD DECIMAL(13, 2) NOT NULL,
GRS_QTD DECIMAL(13, 2) NOT NULL,
GRS_MTD DECIMAL(13, 2) NOT NULL);
我想编写一个查询来从table1和table2获取数据，返回table1中的所有行和table2中的“匹配”值 匹配值意味着，当EMPLID，ERNCD匹配时，它应显示行。 EMPLID和EMPLID之间的所有领域SPCL_BALANCE是关键。
table1的示例数据：
INSERT INTO table1 VALUES('XX','C','0','CY','2015','2','4','Y','XYZ','0','0','0','0','100001','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2015','2','5','Y','XYZ','0','0','0','0','100002','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2015','2','6','Y','XYZ','0','0','0','0','100003','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2015','3','7','Y','XYZ','0','0','0','0','100004','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2015','3','9','Y','XYZ','0','0','0','0','100005','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2015','4','10','Y','XYZ','0','0','0','0','100006','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2015','4','12','Y','XYZ','0','0','0','0','100001','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2016','1','1','Y','XYZ','0','0','0','0','100002','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2016','1','2','Y','XYZ','0','0','0','0','100003','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2016','1','3','Y','XYZ','0','0','0','0','100004','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2016','2','4','Y','XYZ','0','0','0','0','100005','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2016','2','6','Y','XYZ','0','0','0','0','100006','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2016','2','6','Y','DCP','0','100001','0','100001','0','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2016','2','6','Y','SAV','0','100002','0','100002','0','0');
INSERT INTO table1 VALUES('XX','C','0','CY','2016','2','6','Y','SUP','0','100003','0','100003','0','96949.98');
INSERT INTO table1 VALUES('XX','C','0','FY','2016','4','11','Y','PER','0','100004','0','100004','0','0');
INSERT INTO table1 VALUES('XX','C','0','FY','2016','4','11','Y','RET','0','100005','0','100005','0','0');
INSERT INTO table1 VALUES('XX','C','0','FY','2016','4','11','Y','SUM','0','100006','0','100006','0','0');
表2的样本数据
INSERT INTO table2 VALUES('XX','C','CY','2015','2','4','0','Y','XYZ','0','0','176','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2015','2','5','0','Y','XYZ','0','0','176','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2015','2','6','0','Y','XYZ','0','0','168','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2015','3','7','0','Y','XYZ','0','0','360','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2015','3','9','0','Y','XYZ','0','0','168','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2015','4','10','0','Y','XYZ','0','0','352','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2015','4','12','0','Y','XYZ','0','0','168','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2016','1','1','0','Y','XYZ','0','0','184','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2016','1','2','0','Y','XYZ','0','0','168','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2016','1','3','0','Y','XYZ','0','0','168','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2016','2','4','0','Y','XYZ','0','0','352','0','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2016','2','5','0','Y','DCP','0','0','0','100001','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2016','2','5','0','Y','SAV','0','0','0','100002','0','0')
INSERT INTO table2 VALUES('XX','C','CY','2016','2','5','0','Y','SUP','0','0','0','100003','0','0')
INSERT INTO table2 VALUES('XX','C','FY','2016','4','10','0','Y','PER','0','0','0','100004','0','0')
INSERT INTO table2 VALUES('XX','C','FY','2016','4','10','0','Y','RET','0','0','0','100005','0','0')
我想编写一个查询，只要EMPLID和ERNCD匹配，就会显示table1中的所有18行，而不管其他键匹配与否。
输出样本
t1.emplid t2.emplid t1.company t2.compnay t1.empl_rcd t2.empl_rcd t1.balance_id t2.balance_id t1.balance_year t2.balance_year t1.balance_qtr t2.balance_qtr t1.balance_period t2.balance_period t1.erncd t2.erncd
10011024 10011024 UCS UCS 0 0 CY CY 2015 2015 2 2 4 4 ACA ACA
10011024 10011024 UCS UCS 0 0 CY CY 2015 2015 2 2 5 5 ACA ACA
10011024 10011024 UCS UCS 0 0 CY CY 2015 2015 2 2 6 6 ACA ACA
10011024 10011024 UCS UCS 0 0 CY CY 2015 2015 3 3 7 7 ACA ACA
10011024 10011024 UCS UCS 0 0 CY CY 2015 2015 3 3 9 9 ACA ACA
10011024 10011024 UCS UCS 0 0 CY CY 2015 2015 4 4 10 10 ACA ACA
10011024 10011024 UCS UCS 0 0 CY CY 2015 2015 4 4 12 12 ACA ACA
10011024 10011024 UCS UCS 0 0 CY CY 2016 2016 1 1 1 1 ACA ACA
10011024 10011024 UCS UCS 0 0 CY CY 2016 2016 1 1 2 2 ACA ACA
10011024 10011024 UCS UCS 0 0 CY CY 2016 2016 1 1 3 3 ACA ACA
10011024 10011024 UCS UCS 0 0 CY CY 2016 2016 2 2 4 4 ACA ACA
10011024 NULL UCS NULL 0 NULL CY NULL 2016 NULL 2 NULL 6 NULL ACA NULL
10011024 10011024 UCS UCS 0 0 CY CY 2016 2016 2 2 6 5 DCP DCP
10011024 10011024 UCS UCS 0 0 CY CY 2016 2016 2 2 6 5 SAV SAV
10011024 10011024 UCS UCS 0 0 CY CY 2016 2016 2 2 6 5 SUP SUP
10011024 10011024 UCS UCS 0 0 FY FY 2016 2016 4 4 11 10 PER PER
10011024 10011024 UCS UCS 0 0 FY FY 2016 2016 4 4 11 10 RET RET
10011024 NULL UCS NULL 0 NULL CY NULL 2016 NULL 4 NULL 11 NULL SUM NULL
我希望这会有所帮助。我目前正在使用下面的sql但没有获得所有行：
FROM
(
select EBCS1.EMPLID ,EBCS1.COMPANY ,EBCS1.BALANCE_ID ,EBCS1.BALANCE_YEAR ,EBCS1.BALANCE_QTR ,
EBCS1.BALANCE_PERIOD ,EBCS1.EMPL_RCD ,EBCS1.SPCL_BALANCE ,EBCS1.ERNCD ,EBCS1.HRS_YTD ,EBCS1.HRS_QTD ,EBCS1.HRS_MTD ,
EBCS1.GRS_YTD ,EBCS1.GRS_QTD ,EBCS1.GRS_MTD
row_number() over (partition by EBCS1.EMPLID order by case when EBCS1.EMPLID is not null then 0 else 1 end asc, EBCS1.ERNCD) rn
from table1 EBCS1 left join
(select distinct EMPLID,EMPL_RCD, COMPANY, BALANCE_ID,BALANCE_YEAR,BALANCE_QTR,BALANCE_PERIOD,ERNCD,SPCL_BALANCE from table2) EBPS1 on
EBCS1.EMPLID=EBPS1.EMPLID AND EBCS1.BALANCE_ID=EBPS1.BALANCE_ID and EBCS1.COMPANY=EBPS1.COMPANY AND EBCS1.ERNCD=EBPS1.ERNCD and EBCS1.BALANCE_PERIOD = EBPS1.BALANCE_PERIOD
AND EBCS1.BALANCE_QTR = EBPS1.BALANCE_QTR AND EBCS1.EMPL_RCD = EBPS1.EMPL_RCD AND EBCS1.BALANCE_YEAR = EBPS1.BALANCE_YEAR
AND EBCS1.SPCL_BALANCE =EBPS1.SPCL_BALANCE ) EBCS
LEFT OUTER JOIN
(
select EBPS1.EMPLID ,EBPS1.COMPANY ,EBPS1.BALANCE_ID ,EBPS1.BALANCE_YEAR ,EBPS1.BALANCE_QTR ,
EBPS1.BALANCE_PERIOD ,EBPS1.EMPL_RCD ,EBPS1.SPCL_BALANCE ,EBPS1.ERNCD ,EBPS1.HRS_YTD ,EBPS1.HRS_QTD ,EBPS1.HRS_MTD ,
EBPS1.GRS_YTD ,EBPS1.GRS_QTD ,EBPS1.GRS_MTD,
row_number() over (partition by EBPS1.EMPLID order by case when EBPS1.EMPLID is not null then 0 else 1 end asc, EBPS1.ERNCD) rn
from table2 EBPS1 left join (select distinct EMPLID,EMPL_RCD,COMPANY,BALANCE_ID,BALANCE_YEAR,BALANCE_PERIOD,ERNCD,SPCL_BALANCE,BALANCE_QTR
from table1) EBCS1 ON
EBCS1.EMPLID=EBPS1.EMPLID AND EBCS1.BALANCE_ID=EBPS1.BALANCE_ID and EBCS1.COMPANY=EBPS1.COMPANY AND EBCS1.ERNCD=EBPS1.ERNCD and EBCS1.BALANCE_PERIOD = EBPS1.BALANCE_PERIOD
AND EBCS1.BALANCE_QTR = EBPS1.BALANCE_QTR AND EBCS1.EMPL_RCD = EBPS1.EMPL_RCD AND EBCS1.BALANCE_YEAR = EBPS1.BALANCE_YEAR AND EBCS1.SPCL_BALANCE =EBPS1.SPCL_BALANCE ) EBPS
ON ( EBPS.EMPLID=EBCS.EMPLID AND EBPS.COMPANY=EBCS.COMPANY AND EBCS.rn=EBPS.rn )
使用以下查询输出：
XX1 CY CY 2 2 1 1 ACA ACA
XX1 CY CY 3 3 1 1 ACA ACA
XX1 CY CY 4 4 2 2 ACA ACA
XX1 CY 6 0 2 0 ACA
XX1 CY 6 0 2 0 DCP
XX1 CY 6 0 2 0 SAV
XX1 CY 6 0 2 0 SUP
XX1 FY 11 0 4 0 SAF
预期产出：
XX1 CY CY 2 2 1 1 ACA ACA
XX1 CY CY 3 3 1 1 ACA ACA
XX1 CY CY 4 4 2 2 ACA ACA
XX1 CY NULL 6 0 2 0 ACA NULL
XX1 CY CY 6 2 2 5 DCP DCP
XX1 CY CY 6 2 2 5 SAV SAV
XX1 CY CY 6 2 2 5 SUP SUP
XX1 FY FY 11 4 10 10 SAF SAF
答案 0 :(得分：0)
我想到的唯一想法是：
select t1.emplid,t1.balance_id,t2.balance_id,t1.balance_period,t2.balance_period,t1.balance_qtr,t2.balance_qtr, t1.erncd,t2.erncd
from table1 t1 join table2 t2
on t1.emplid=t2.emplid
and t1.company=t2.company
and t1.empl_rcd=t2.empl_rcd
and t1.balance_id=t2.balance_id
and t1.balance_year=t2.balance_year
and t1.balance_qtr=t2.balance_qtr
and t1.balance_period=t2.balance_period
and t1.spcl_balance=t2.spcl_balance
and t1.erncd=t2.erncd
union all
select t1.emplid,
t1.balance_id, null balance_id,
t1.balance_period, null balance_period,
t1.balance_qtr, null balance_qtr,
t1.erncd, null erncd
from table1 t1
left join (select * from table2 t3
where not exists
( select 1 from table1 t4
where t3.emplid=t4.emplid
and t3.company=t4.company
and t3.empl_rcd=t4.empl_rcd
and t3.balance_id=t4.balance_id
and t3.balance_year=t4.balance_year
and t3.balance_qtr=t4.balance_qtr
and t3.balance_period=t4.balance_period
and t3.spcl_balance=t4.spcl_balance
)
) t3
on t1.emplid=t3.emplid
and t1.erncd=t3.erncd
where not exists
( select 1 from table2 t2
where t1.emplid=t2.emplid
and t1.company=t2.company
and t1.empl_rcd=t2.empl_rcd
and t1.balance_id=t2.balance_id
and t1.balance_year=t2.balance_year
and t1.balance_qtr=t2.balance_qtr
and t1.balance_period=t2.balance_period
and t1.spcl_balance=t2.spcl_balance
);
在查询的第一部分，我将返回所有完全匹配的行。在第二个中，我将返回table1与table2连接的所有行，具有相同的emplid和erncd（但仅限于不匹配的记录）。
如果这不符合您的要求，您能否在示例中添加table2行以及完整的预期结果？
我不清楚，如果你的数据中第二个联盟会返回重复项。