Multiple column condition check with multiple rows to be found - sql

Question

ID A B c D E(Time)
---------------------------
1 J 1 A B 1
2 J 1 A S 2
3 M 1 A B 1
4 M 1 A B 2
5 M 2 A S 3
6 M 2 A S 4
7 T 1 A B 1
8 T 2 A S 2
9 T 1 A B 3
10 k 1 A B 1
11 k 1 A B 2
I need to find unique values with multiple column with some added condition. The unique value are combination of Col A,B and D.
If Col A has only two rows (like record 1 and 2) and the Column B is same on both data and there is a different value as in Column D , BUT the S are only coming after B we dont want to see those records
If Col A has only multiple rows (like record 3 to 6 ) with different Col B and D,
whereas in COulmn D S are coming after B we dont want to see those records.
If Col A has only multiple rows (like record 7 to 9 ) with different Col B and D,
whereas in COulmn D there is a S before B we want to see those records.
If Col A has only multiple rows (like record 10 to 11 ) with different Col B and same column D we dont want to see those records.
any input , able to get to see the first and last of it using partition by and using unbounded in query...
Seems like the basic logic to look for is on to See if S preceds any B on Column D then show all those records using the partition...
Desired output is row 7-9: THis is Based on logic for same column A , we had a Sell before Buy from customer on Column D when order by column E time.
ID A B C D E(Time)
---------------------------------------------------
7 T 1 A B 1
8 T 2 A S 2
9 T 1 A B 3

Answer 1

I started to write a query to do this, but ran out of "Spare time", your criteria is very hard to follow, If you comment out the "Where" at the bottom of the query it functions but doesn't yet produce your desired effect.
Possibly this can lead you in a direction to achive your goal ...
WITH Src AS (
SELECT 1 AS ID, 'J' AS A, 1 AS B, 'A' AS C, 'B' AS D, 1 AS E
UNION ALL SELECT 2, 'J', 1, 'A', 'S', 2
UNION ALL SELECT 3, 'M', 1, 'A', 'B', 1
UNION ALL SELECT 4, 'M', 1, 'A', 'B', 2
UNION ALL SELECT 5, 'M', 2, 'A', 'S', 3
UNION ALL SELECT 6, 'M', 2, 'A', 'S', 4
UNION ALL SELECT 7, 'T', 1, 'A', 'B', 1
UNION ALL SELECT 8, 'T', 2, 'A', 'S', 2
UNION ALL SELECT 9, 'T', 1, 'A', 'B', 3
UNION ALL SELECT 10, 'k', 1, 'A', 'B', 1
UNION ALL SELECT 11, 'k', 1, 'A', 'B', 2
), ACnt AS (
SELECT A, Count(*) AS Cnt
FROM Src
GROUP BY A
), FirstD AS (
SELECT A, D
FROM Src
WHERE E=1
), FirstSRow AS (
SELECT A, Min(E) AS E
FROM Src
WHERE D='S'
GROUP BY A
), LastBRow AS (
SELECT A, Max(E) AS E
FROM Src
WHERE D='B'
GROUP BY A
), Mins AS (
SELECT A, Min(D) AS D, Min(B) AS B
FROM Src
GROUP BY A
), Maxs AS (
SELECT A, Max(D) AS D, Max(B) AS B
FROM Src
GROUP BY A
)
SELECT Src.*
FROM Src
JOIN ACnt ON ACnt.A=Src.A
JOIN FirstD ON FirstD.A=Src.A
JOIN Mins ON Mins.A=Src.A
JOIN Maxs ON Maxs.A=Src.A
LEFT JOIN FirstSRow ON FirstSRow.A=Src.A
LEFT JOIN LastBRow ON LastBRow.A=Src.A
WHERE
NOT (ACnt.Cnt=2 AND Mins.B=Maxs.B AND Mins.D<>Maxs.D AND FirstSRow.E < LastBRow.E)
AND NOT (ACnt.Cnt>=3 AND Mins.B<>Maxs.B AND Mins.D<>Maxs.D AND FirstD.D='B')
AND (ACnt.Cnt>=3 AND Mins.B<>Maxs.B AND Mins.D<>Maxs.D AND FirstD.D='B')