查找担保圈-step5-比较各组之间的成员,对组的包含性进行查询,具体见程序的注释-版本2
1 USE [test] 2 GO 3 /****** Object: StoredProcedure [dbo].[p03_get_groupno_e2] Script Date: 2019/7/8 15:01:22 ******/ 4 SET ANSI_NULLS ON 5 GO 6 SET QUOTED_IDENTIFIER ON 7 GO 8 ALTER PROC [dbo].[p03_get_groupno_e2] 9 AS 10 BEGIN 11 --s3,比较各组的成员,对组进行清理,具体见程序的注释 12 SET STATISTICS TIME OFF; 13 SET STATISTICS IO OFF; 14 SET NOCOUNT ON; 15 DECLARE @get_max_groupno INT = 0; 16 SELECT @get_max_groupno = MAX(groupno) 17 FROM dbo.t01_get_group_path; 18 --预先清空dbo.t03_get_groupno表 19 TRUNCATE TABLE dbo.t03_get_groupno; 20 DECLARE @a INT = 1; 21 WHILE @a <= @get_max_groupno --最大的分组编号 22 BEGIN 23 DECLARE @b INT = @a + 1; 24 WHILE @b <= @get_max_groupno --最大的分组编号 25 BEGIN 26 DECLARE @p BIT = 0, 27 @q BIT = 0; 28 IF EXISTS 29 ( 30 SELECT cust_name 31 FROM [dbo].[t02_get_group_member] 32 WHERE groupno = @a 33 EXCEPT 34 SELECT cust_name 35 FROM [dbo].[t02_get_group_member] 36 WHERE groupno = @b 37 ) 38 SET @p = 1; 39 ELSE 40 SET @p = 0; 41 42 IF EXISTS 43 ( 44 SELECT cust_name 45 FROM [dbo].[t02_get_group_member] 46 WHERE groupno = @b 47 EXCEPT 48 SELECT cust_name 49 FROM [dbo].[t02_get_group_member] 50 WHERE groupno = @a 51 ) 52 SET @q = 1; 53 ELSE 54 SET @p = 0; 55 IF ( 56 @p >= 1 57 OR @p = 0 58 ) 59 AND @q = 0 --第1,4种情况,集合a包括集合b的情况(a包括b但b不包括a,a=b两种情况,保留集合a的组号) 60 INSERT INTO dbo.t03_get_groupno 61 ( 62 ctype, 63 iinclude_groupno, 64 ibeincluded_groupno 65 ) 66 VALUES 67 ('1,4', @a, @b); 68 ELSE IF @p = 0 69 AND @q >= 1 --第2种情况,集合b包括集合a,但集合a不包括集合b 70 INSERT INTO dbo.t03_get_groupno 71 ( 72 ctype, 73 iinclude_groupno, 74 ibeincluded_groupno 75 ) 76 VALUES 77 ('2', @b, @a); 78 79 ELSE IF @p >= 1 --第三种情况,a和b存在交集但不完全相同,或者a和b完全不同 80 AND @q >= 1 81 BEGIN 82 INSERT INTO dbo.t03_get_groupno 83 ( 84 ctype, 85 iinclude_groupno, 86 ibeincluded_groupno 87 ) 88 VALUES 89 ('3', @a, 0), 90 ('3', @b, 0); 91 END; 92 SET @b = @b + 1; 93 END; 94 SET @a = @a + 1; 95 END; 96 END;
posted on 2019-07-08 15:02 hold_on_up 阅读(179) 评论(0) 编辑 收藏 举报