Oracle day13
/*CREATE TABLE f726( ID number, Type VARCHAR2(20), MasterID number, Amount number ); INSERT INTO f726 VALUES (1,直接合同,NULL,5000); INSERT INTO f726 VALUES (2,补充合同,1,1000); INSERT INTO f726 VALUES (3,补充合同,1,500); INSERT INTO f726 VALUES (4,直接合同…
2025-04-23