将一个多表关联的条件查询中的多表通过 create select 转化成一张单表的sql
将结果改为创建一个会话级别的临时表:
-- 根据下面这两个sql CREATE TABLE revenue_cp AS SELECT /*+PARALLEL(12)*/ e.STD_PRVNCE_CD STD_PRVNCE_CD, e.STD_LATN_CD STD_LATN_CD, e. CUST_ID ,e.PROD_TYPE, m.party_id party_id, e.TY_12 TY_12, e.TY_11 TY_11, e.TY_10 TY_10, e.TY_9 TY_9 , e.TY_8 TY_8 , e.TY_7 TY_7 , e.TY_6 TY_6 , e.TY_5 TY_5 , e.TY_4 TY_4 , e.TY_3 TY_3 , e.TY_2 TY_2 , e.TY_1 TY_1 , e.LY_12 LY_12, e.LY_11 LY_11, e.LY_10 LY_10, e.LY_9 LY_9 , e.LY_8 LY_8 , e.LY_7 LY_7 , e.LY_6 LY_6 , e.LY_5 LY_5 , e.LY_4 LY_4 , e.LY_3 LY_3 , e.LY_2 LY_2 , e.LY_1 LY_1 FROM EDA_CUST_INC e, CUST_CP_MERGE m WHERE 1 = 1 and e.CUST_ID = m.CUST_ID AND e.STD_LATN_CD = m.STD_LATN_CD and m.PARTY_ID IS NOT NULL AND UPPER(m.PARTY_ID) != 'NULL'; CREATE TABLE revenue_all as select r.*, p.IDENTITY_TYPE, o.INDUSTRY_TYPE_ID from revenue_cp r left join party p on r.party_id=p.party_id left join party_org o on r.party_id = o.party_id; --得到下面创建临时表的SQL -- 创建回话级别临时表 CREATE GLOBAL TEMPORARY table REVENUE_ALL2 ( STD_PRVNCE_CD VARCHAR2(20), STD_LATN_CD VARCHAR2(20), CUST_ID VARCHAR2(20), PROD_TYPE VARCHAR2(20), PARTY_ID NUMBER(16), TY_12 NUMBER(16,2), TY_11 NUMBER(16,2), TY_10 NUMBER(16,2), TY_9 NUMBER(16,2), TY_8 NUMBER(16,2), TY_7 NUMBER(16,2), TY_6 NUMBER(16,2), TY_5 NUMBER(16,2), TY_4 NUMBER(16,2), TY_3 NUMBER(16,2), TY_2 NUMBER(16,2), TY_1 NUMBER(16,2), LY_12 NUMBER(16,2), LY_11 NUMBER(16,2), LY_10 NUMBER(16,2), LY_9 NUMBER(16,2), LY_8 NUMBER(16,2), LY_7 NUMBER(16,2), LY_6 NUMBER(16,2), LY_5 NUMBER(16,2), LY_4 NUMBER(16,2), LY_3 NUMBER(16,2), LY_2 NUMBER(16,2), LY_1 NUMBER(16,2), IDENTITY_TYPE NUMBER(4), INDUSTRY_TYPE_ID NUMBER(16) ) ON COMMIT PRESERVE ROWS; --向临时表中插数据 insert into REVENUE_ALL2 select r.*, p.IDENTITY_TYPE, o.INDUSTRY_TYPE_ID from (SELECT /*+PARALLEL(12)*/ e.STD_PRVNCE_CD STD_PRVNCE_CD, e.STD_LATN_CD STD_LATN_CD, e. CUST_ID ,e.PROD_TYPE, m.party_id party_id, e.TY_12 TY_12, e.TY_11 TY_11, e.TY_10 TY_10, e.TY_9 TY_9 , e.TY_8 TY_8 , e.TY_7 TY_7 , e.TY_6 TY_6 , e.TY_5 TY_5 , e.TY_4 TY_4 , e.TY_3 TY_3 , e.TY_2 TY_2 , e.TY_1 TY_1 , e.LY_12 LY_12, e.LY_11 LY_11, e.LY_10 LY_10, e.LY_9 LY_9 , e.LY_8 LY_8 , e.LY_7 LY_7 , e.LY_6 LY_6 , e.LY_5 LY_5 , e.LY_4 LY_4 , e.LY_3 LY_3 , e.LY_2 LY_2 , e.LY_1 LY_1 FROM EDA_CUST_INC e, CUST_CP_MERGE m WHERE 1 = 1 and e.CUST_ID = m.CUST_ID AND e.STD_LATN_CD = m.STD_LATN_CD and m.PARTY_ID IS NOT NULL AND UPPER(m.PARTY_ID) != 'NULL') r left join party p on r.party_id=p.party_id left join party_org o on r.party_id = o.party_id; select * from REVENUE_ALL2;