DB2行转列（多维度）

多维度下进行行列转换，下面的行列转换时根据客户，所属银行机构进行的行列转换。

-----------------建表 CREATE TABLE CUST_BANK_INFO (CUST_ID VARCHAR(10),CUST_NAME VARCHAR(100),BANK_NO VARCHAR(100),BANK VARCHAR(100),MONEY_TYPE_NO VARCHAR(100),MONEY_TYPE VARCHAR(100),MONEY INT );INSERT INTO CUST_BANK_INFO VALUES('C001','允贤','B01','中国银行','MT01','理财',10000); INSERT INTO CUST_BANK_INFO VALUES('C002','李四','B01','中国银行','MT02','贷款',20390); INSERT INTO CUST_BANK_INFO VALUES('C003','王五','B01','中国银行','MT03','存款',29301); INSERT INTO CUST_BANK_INFO VALUES('C004','陈六','B01','中国银行','MT04','教育储蓄',10000); INSERT INTO CUST_BANK_INFO VALUES('C001','允贤','B02','中国银行','MT01','理财',20000); INSERT INTO CUST_BANK_INFO VALUES('C005','JACK','B02','工商银行','MT05','理财',10001); INSERT INTO CUST_BANK_INFO VALUES('C006','王三','B02','工商银行','MT06','贷款',10002); INSERT INTO CUST_BANK_INFO VALUES('C007','刘六','B02','工商银行','MT07','存款',10003); INSERT INTO CUST_BANK_INFO VALUES('C008','郑七','B02','工商银行','MT08','教育储蓄',10004);
SELECT * FROM CUST_BANK_INFO 查询结果如下：

--DELETE FROM CUST_BANK_INFO DROP TABLE Mapping; CREATE TABLE Mapping (CN_NAME VARCHAR(100),Code_L VARCHAR(10),Code_N VARCHAR(10) ) INSERT INTO Mapping values('理财','MT01','BANK_01'); INSERT INTO Mapping values('理财','MT05','BANK_01'); INSERT INTO Mapping values('贷款','MT02','BANK_02'); INSERT INTO Mapping values('贷款','MT06','BANK_02'); INSERT INTO Mapping values('存款','MT03','BANK_03'); INSERT INTO Mapping values('存款','MT07','BANK_03'); INSERT INTO Mapping values('教育储蓄','MT04','BANK_04'); INSERT INTO Mapping values('教育储蓄','MT08','BANK_04');SELECT CUST_ID,CUST_NAME,BANK_NO,BANK, max(CASE WHEN B.Code_N='BANK_01' THEN MONEY ELSE '0' END) AS 理财, max(CASE WHEN B.Code_N='BANK_02' THEN MONEY ELSE '0' END) AS 贷款, max(CASE WHEN B.Code_N='BANK_03' THEN MONEY ELSE '0' END) AS 存款, max(CASE WHEN B.Code_N='BANK_04' THEN MONEY ELSE '0' END) AS 教育储蓄 FROM CUST_BANK_INFO A LEFT JOIN MAPPING B ON A.MONEY_TYPE_NO=B.Code_L group by CUST_ID,CUST_NAME,BANK,BANK_NO

 

查询结果如下：

 

转载于:https://www.cnblogs.com/OliverQin/p/5344659.html

总结

以上是生活随笔为你收集整理的DB2行转列（多维度）的全部内容，希望文章能够帮你解决所遇到的问题。

如果觉得生活随笔网站内容还不错，欢迎将生活随笔推荐给好友。