I have data as per the table below, I pass in a list of numbers and need the raceId where all the numbers appear in the the data column for that race.
+-----+--------+------+
| Id | raceId | data |
+-----+--------+------+
| 14 | 1 | 1 |
| 12 | 1 | 2 |
| 13 | 1 | 3 |
| 16 | 1 | 8 |
| 47 | 2 | 1 |
| 43 | 2 | 2 |
| 46 | 2 | 6 |
| 40 | 2 | 7 |
| 42 | 2 | 8 |
| 68 | 3 | 3 |
| 69 | 3 | 6 |
| 65 | 3 | 7 |
| 90 | 4 | 1 |
| 89 | 4 | 2 |
| 95 | 4 | 6 |
| 92 | 4 | 7 |
| 93 | 4 | 8 |
| 114 | 5 | 1 |
| 116 | 5 | 2 |
| 117 | 5 | 3 |
| 118 | 5 | 8 |
| 138 | 6 | 2 |
| 139 | 6 | 6 |
| 140 | 6 | 7 |
| 137 | 6 | 8 |
+-----+--------+------+
Example I pass in 1,2,7 I would get the following Id's:
2 and 4
I have tried the simple statement
SELECT * FROM table WHERE ((data = 1) or (data = 2) or (data = 7))
But I don't really understand the grouping by clause or indeed if it is the correct way of doing this.
select raceId
from yourtable
where data in (1,2,7)
group by raceId
having count(raceId) = 3 /* length(1,2,7) */
This is assuming raceId, data pair is unique. If it's not the you should use
select raceId
from (select distinct raceId, data
from yourtable
where data in(1,2,7))
group by raceId
having count(raceId) = 3
SELECT DISTINCT raceId WHERE data IN (1, 2, 7)
This is an example of a "set-within-sets" query. I like to solve these with group by and having.
select raceid
from races
where data in (1, 2, 7)
group by raceid
having count(*) = 3;
Related
I have a table of matches and scores, which looks something like this
match_id | player1 | player2 | player1_score | player2_score |
---------|---------|---------|---------------|---------------|
1 | 1 | 2 | 30 | 50 |
2 | 3 | 1 | 35 | 10 |
3 | 1 | 4 | 40 | 20 |
4 | 2 | 3 | 20 | 25 |
5 | 4 | 2 | 65 | 15 |
6 | 3 | 4 | 10 | 20 |
and I want to make a query with the scores in a single column
match_id | player | opponent | score |
---------|--------|----------|-------|
1 | 1 | 2 | 30 |
2 | 3 | 1 | 35 |
3 | 1 | 4 | 40 |
4 | 2 | 3 | 20 |
5 | 4 | 2 | 65 |
6 | 3 | 4 | 10 |
1 | 2 | 1 | 50 |
2 | 1 | 3 | 10 |
3 | 4 | 1 | 20 |
4 | 3 | 2 | 25 |
5 | 2 | 4 | 15 |
6 | 4 | 3 | 20 |
This would be equivalent to concatenating some columns in the table with others:
match_id | player | opponent | score |
---------|---------|----------|---------------|
match_id | player1 | player2 | player1_score |
match_id | player2 | player1 | player2_score |
but I'm not not sure what the appropriate operation would be. join is the only operation I know that combines tables, but it seems like the wrong tool here.
Either CONCAT or UNION seems reasonable, but which would be preferable here? And what would the query be?
seems you need an union
select match_id, player1, player2 opponent, player1_score score
from my_table
union all
select match_id, player1, player2 , player2_score
from my_table
I have two tables.
Student Table
Property Table
Result Table
How can I get the value of Student Table and the property ID of the column fron the Property table and merge that into the Result table?
Any advice would be helpful.
Update #1:
I tried using Christian Moen 's suggestion, this is what i get.
You need to UNPIVOT the Student's columns first, to get the columns (properties names) in one column as rows. Then join with the Property table based on the property name like this:
WITH UnPivoted
AS
(
SELECT ID, value,col
FROM
(
SELECT ID,
CAST(Name AS NVARCHAR(50)) AS Name,
CAST(Class AS NVARCHAR(50)) AS Class,
CAST(ENG AS NVARCHAR(50)) AS ENG,
CAST(TAM AS NVARCHAR(50)) AS TAM,
CAST(HIN AS NVARCHAR(50)) AS HIN,
CAST(MAT AS NVARCHAR(50)) AS MAT,
CAST(PHY AS NVARCHAR(50)) AS PHY
FROM Student
) AS s
UNPIVOT
(value FOR col IN
([Name], [class], [ENG], [TAM], [HIN], [MAT], [PHY])
)AS unpvt
)
SELECT
ROW_NUMBER() OVER(ORDER BY u.ID,PropertyID) AS ID,
p.PropertyID,
u.Value,
u.ID AS StudID
FROM Property AS p
INNER JOIN UnPivoted AS u ON p.PropertyName = u.col;
For the first ID, I used the ranking function ROW_NUMBER() to generate this sequence id.
This will give the exact results that you are looking for.
Results:
| ID | PropertyID | Value | StudID |
|----|------------|--------|--------|
| 1 | 1 | Jack | 1 |
| 2 | 2 | 10 | 1 |
| 3 | 3 | 89 | 1 |
| 4 | 4 | 88 | 1 |
| 5 | 5 | 45 | 1 |
| 6 | 6 | 100 | 1 |
| 7 | 7 | 98 | 1 |
| 8 | 1 | Jill | 2 |
| 9 | 2 | 10 | 2 |
| 10 | 3 | 89 | 2 |
| 11 | 4 | 99 | 2 |
| 12 | 5 | 100 | 2 |
| 13 | 6 | 78 | 2 |
| 14 | 7 | 91 | 2 |
| 15 | 1 | Trevor | 3 |
| 16 | 2 | 12 | 3 |
| 17 | 3 | 100 | 3 |
| 18 | 4 | 50 | 3 |
| 19 | 5 | 49 | 3 |
| 20 | 6 | 94 | 3 |
| 21 | 7 | 100 | 3 |
| 22 | 1 | Jim | 4 |
| 23 | 2 | 8 | 4 |
| 24 | 3 | 100 | 4 |
| 25 | 4 | 91 | 4 |
| 26 | 5 | 92 | 4 |
| 27 | 6 | 100 | 4 |
| 28 | 7 | 100 | 4 |
Other option is to use of apply if you don't want to go unpivot way
select row_number() over (order by (select 1)) ID, p.PropertyID [PropID], a.Value, a.StuID
from Student s
cross apply
(
values (s.ID, 'Name', s.Name),
(s.ID, 'Class', cast(s.Class as varchar)),
(s.ID, 'ENG', cast(s.ENG as varchar)),
(s.ID, 'TAM', cast(s.TAM as varchar)),
(s.ID, 'HIN', cast(s.HIN as varchar)),
(s.ID, 'MAT', cast(s.MAT as varchar)),
(s.ID, 'PHY', cast(s.PHY as varchar))
) as a(StuID, Property, Value)
join Property p on p.PropertyName = a.Property
I have the following table named foo:
ID | D1 | D2 | D3 |
---------------------
1 | 47 | 3 | 71 |
2 | 47 | 98 | 82 |
3 | 0 | 99 | 3 |
4 | 3 | 100 | 6 |
5 | 48 | 10 | 3 |
6 | 49 | 12 | 4 |
I want to run a select query and have the results show like this
ID | D1 | D2 | D3 | Result |
------------------------------
1 | 47 | 3 | 71 | D3 |
2 | 47 | 98 | 82 | D2 |
3 | 0 | 99 | 3 | D2 |
4 | 3 | 100 | 6 | D2 |
5 | 48 | 10 | 3 | D1 |
6 | 49 | 12 | 4 | D1 |
So, basically I want to get Maximum value between D1, D2, D3 column divided by id.
As You may seen , ID 1 have D3 in the Result column since Maximum value between
D1 : D2 : D3
That Means 4 : 3 : 71 , Max value is 71. Thats Why The Result show 'D3'
Is there a way to do this in a sql query ?
Thanks!
For Oracle please try this one
select foo.*, case when greatest(d1, d2, d3) = d1 then 'D1'
when greatest(d1, d2, d3) = d2 then 'D2'
when greatest(d1, d2, d3) = d3 then 'D3'
end result
from foo
Consider the following - a normalized approach...
DROP TABLE IF EXISTS my_table;
CREATE TABLE my_table
(id INT NOT NULL
,d INT NOT NULL
,val INT NOT NULL
,PRIMARY KEY(id,d)
);
INSERT INTO my_table VALUES
(1,1,47),
(2,1,47),
(3,1,0),
(4,1,3),
(5,1,48),
(6,1,49),
(1,2,3),
(2,2,98),
(3,2,99),
(4,2,100),
(5,2,10),
(6,2,12),
(1,3,71),
(2,3,82),
(3,3,3),
(4,3,6),
(5,3,3),
(6,3,4);
SELECT * FROM my_table;
+----+---+-----+
| id | d | val |
+----+---+-----+
| 1 | 1 | 47 |
| 1 | 2 | 3 |
| 1 | 3 | 71 |
| 2 | 1 | 47 |
| 2 | 2 | 98 |
| 2 | 3 | 82 |
| 3 | 1 | 0 |
| 3 | 2 | 99 |
| 3 | 3 | 3 |
| 4 | 1 | 3 |
| 4 | 2 | 100 |
| 4 | 3 | 6 |
| 5 | 1 | 48 |
| 5 | 2 | 10 |
| 5 | 3 | 3 |
| 6 | 1 | 49 |
| 6 | 2 | 12 |
| 6 | 3 | 4 |
+----+---+-----+
SELECT x.*
FROM my_table x
JOIN
( SELECT id,MAX(val) max_val FROM my_table GROUP BY id) y
ON y.id = x.id
AND y.max_val = x.val;
+----+---+-----+
| id | d | val |
+----+---+-----+
| 1 | 3 | 71 |
| 2 | 2 | 98 |
| 3 | 2 | 99 |
| 4 | 2 | 100 |
| 5 | 1 | 48 |
| 6 | 1 | 49 |
+----+---+-----+
(This is intended as a MySQL solution - I'm not familiar with ORACLE syntax, so apologies if this doesn't port)
Does this answer your comment?
SELECT x.* , y.max_val
FROM my_table x
JOIN
( SELECT id,MAX(val) max_val FROM my_table GROUP BY id) y
ON y.id = x.id ;
+----+---+-----+---------+
| id | d | val | max_val |
+----+---+-----+---------+
| 1 | 1 | 47 | 71 |
| 1 | 2 | 3 | 71 |
| 1 | 3 | 71 | 71 |
| 2 | 1 | 47 | 98 |
| 2 | 2 | 98 | 98 |
| 2 | 3 | 82 | 98 |
| 3 | 1 | 0 | 99 |
| 3 | 2 | 99 | 99 |
| 3 | 3 | 3 | 99 |
| 4 | 1 | 3 | 100 |
| 4 | 2 | 100 | 100 |
| 4 | 3 | 6 | 100 |
| 5 | 1 | 48 | 48 |
| 5 | 2 | 10 | 48 |
| 5 | 3 | 3 | 48 |
| 6 | 1 | 49 | 49 |
| 6 | 2 | 12 | 49 |
| 6 | 3 | 4 | 49 |
+----+---+-----+---------+
I'm using SQL Server 2008 R2. I have a table called tstResult in my database.
AI SubID StudID StudName TotalMarks ObtainedMarks
--------------------------------------------------------
1 | 1 | 1 | Jakir | 100 | 90
2 | 1 | 2 | Rubel | 100 | 75
3 | 1 | 3 | Ruhul | 100 | 82
4 | 1 | 4 | Beauty | 100 | 82
5 | 1 | 5 | Bulbul | 100 | 96
6 | 1 | 6 | Ripon | 100 | 82
7 | 1 | 7 | Aador | 100 | 76
8 | 1 | 8 | Jibon | 100 | 80
9 | 1 | 9 | Rahaat | 100 | 82
Now I want a SELECT query that generate a merit list according to the Obtained Marks. In this query obtained marks "96" will be the top in the merit list and all the "82" marks will be placed one after another in the merit list. Something like this:
StudID StudName TotalMarks ObtainedMarks Merit List
----------------------------------------------------------
| 5 | Bulbul | 100 | 96 | 1
| 1 | Jakir | 100 | 90 | 2
| 9 | Rahaat | 100 | 82 | 3
| 3 | Ruhul | 100 | 82 | 3
| 4 | Beauty | 100 | 82 | 3
| 6 | Ripon | 100 | 82 | 3
| 8 | Jibon | 100 | 80 | 4
| 7 | Aador | 100 | 76 | 5
| 2 | Rubel | 100 | 75 | 6
;with cte as
(
select *, dense_rank() over (order by ObtainedMarks desc) as Merit_List
from tstResult
)
select * from cte order by Merit_List desc
you need to use Dense_rank()
select columns from tstResult order by ObtainedMarks desc
I would like to merge two tables into one and also add a counter next to that. What i have now is
SELECT [CUCY_DATA].*, [DIM].[Col1], [DIM].[Col2],
(SELECT COUNT([Cut Counter]) FROM [MSD]
WHERE [CUCY_DATA].[Cut Counter] = [MSD].[Cut Counter]
) AS [Nr Of Errors]
FROM [CUCY_DATA] FULL JOIN [DIM]
ON [CUCY_DATA].[Cut Counter] = [DIM].[Cut Counter]
This way the data is inserted but where the values don't match nulls are inserted. I want for instance this
Table CUCY_DATA
|_Cut Counter_|_Data1_|_Data2_|
| 1 | 12 | 24 |
| 2 | 13 | 26 |
| 3 | 10 | 20 |
| 4 | 11 | 22 |
Table DIM
|_Cut Counter_|_Col1_|_Col2_|
| 1 | 25 | 40 |
| 3 | 50 | 45 |
And they need to be merged into:
|_Cut Counter_|_Data1_|_Data2_|_Col1_|_Col2_|
| 1 | 12 | 24 | 25 | 40 |
| 2 | 13 | 26 | 25 | 40 |
| 3 | 10 | 20 | 50 | 45 |
| 4 | 11 | 22 | 50 | 45 |
SO THIS IS WRONG:
|_Cut Counter_|_Data1_|_Data2_|_Col1__|_Col2__|
| 1 | 12 | 24 | 25 | 40 |
| 2 | 13 | 26 | NULL | NULL |
| 3 | 10 | 20 | 50 | 45 |
| 4 | 11 | 22 | NULL | NULL |
Kind regards, Bob
How are you getting the col1 and col2 values where there is no corresponding row in your DIM table? (Rows 2 and 4). Your "wrong" result is exactly correct, that's what the outer join does.