回答編集履歴
1
抽出
test
CHANGED
|
@@ -11,3 +11,95 @@
|
|
|
11
11
|
DEFをテーブルABそれぞれにDISTINCTで抽出してUNION ALLし
|
|
12
12
|
|
|
13
13
|
group byしてhavingでcount(*)が1のデータを抽出するといいでしょう
|
|
14
|
+
|
|
15
|
+
|
|
16
|
+
|
|
17
|
+
# sample
|
|
18
|
+
|
|
19
|
+
```SQL
|
|
20
|
+
|
|
21
|
+
create table tbl_a(id int unique ,D int,E int, F int, G varchar(10));
|
|
22
|
+
|
|
23
|
+
insert into tbl_a values(1,100,100,100,'aaa'),(2,200,200,200,'bbb'),(3,100,200,100,'ccc'),(4,100,100,100,'ddd');
|
|
24
|
+
|
|
25
|
+
create table tbl_b(id int unique ,D int,E int, F int, H varchar(10));
|
|
26
|
+
|
|
27
|
+
insert into tbl_b values(101,100,100,100,'eee'),(102,200,100,200,'fff'),(103,200,200,200,'ggg'),(104,200,100,200,'hhh');
|
|
28
|
+
|
|
29
|
+
|
|
30
|
+
|
|
31
|
+
```
|
|
32
|
+
|
|
33
|
+
- 片方にしかないDEF
|
|
34
|
+
|
|
35
|
+
```SQL
|
|
36
|
+
|
|
37
|
+
select D,E,F from(
|
|
38
|
+
|
|
39
|
+
select distinct D,E,F from tbl_a
|
|
40
|
+
|
|
41
|
+
union all select distinct D,E,F from tbl_b
|
|
42
|
+
|
|
43
|
+
) as sub
|
|
44
|
+
|
|
45
|
+
group by D,E,F
|
|
46
|
+
|
|
47
|
+
having count(*)=1
|
|
48
|
+
|
|
49
|
+
```
|
|
50
|
+
|
|
51
|
+
|
|
52
|
+
|
|
53
|
+
- それぞれ合致するデータを抽出
|
|
54
|
+
|
|
55
|
+
```SQL
|
|
56
|
+
|
|
57
|
+
/* tbl_a */
|
|
58
|
+
|
|
59
|
+
select * from tbl_a
|
|
60
|
+
|
|
61
|
+
where (D,E,F) in (
|
|
62
|
+
|
|
63
|
+
select D,E,F from(
|
|
64
|
+
|
|
65
|
+
select distinct D,E,F from tbl_a
|
|
66
|
+
|
|
67
|
+
union all select distinct D,E,F from tbl_b
|
|
68
|
+
|
|
69
|
+
) as sub
|
|
70
|
+
|
|
71
|
+
group by D,E,F
|
|
72
|
+
|
|
73
|
+
having count(*)=1
|
|
74
|
+
|
|
75
|
+
);
|
|
76
|
+
|
|
77
|
+
|
|
78
|
+
|
|
79
|
+
/* tbl_b */
|
|
80
|
+
|
|
81
|
+
select * from tbl_b
|
|
82
|
+
|
|
83
|
+
where (D,E,F) in (
|
|
84
|
+
|
|
85
|
+
select D,E,F from(
|
|
86
|
+
|
|
87
|
+
select distinct D,E,F from tbl_a
|
|
88
|
+
|
|
89
|
+
union all select distinct D,E,F from tbl_b
|
|
90
|
+
|
|
91
|
+
) as sub
|
|
92
|
+
|
|
93
|
+
group by D,E,F
|
|
94
|
+
|
|
95
|
+
having count(*)=1
|
|
96
|
+
|
|
97
|
+
);
|
|
98
|
+
|
|
99
|
+
```
|
|
100
|
+
|
|
101
|
+
|
|
102
|
+
|
|
103
|
+
※注意：命題の追記をみるかぎり、tbl_aとtbl_bは構成が違うようなので
|
|
104
|
+
|
|
105
|
+
一発でデータ抽出はできません。二度にわけて処理して下さい
|