Related
I have this:
SELECT NEWID() as id,
'OwnerReassign' as name,
1 as TypeId,
'MyOrganisation' as OrgName,
'07DA8E53-74BD-459C-AF94-A037897A51E3' as SystemUserId,
0 as StatusId,
GETDATE() as CreatedAt,
'{"EntityName":"account","Ids":["'+CAST(AccountId as varchar(50))+'"],"OwnerId":"0C01C994-1205-E511-988E-26EE4189191B"}' as [Parameters]
FROM Account
WHERE OwnerIdName IN ('John Smith') AND New_AccountType = 1
Within the parameter field is an id (0C01C994-1205-E511-988E-26EE4189191B). Is it possible it could sequentially assign a different id from a list for each row? There are 5 id's in total.
What i'm trying to get to is this result set equally split between the 5 different id's.
Thanks
You can add one more NEWID() in the sub query and handle in the SELECT as below:
SELECT id, [name], TypeId, OrgName, SystemUserId, StatusId, CreatedAt,
'{"EntityName":"account","Ids":["' + AccountId +'"],"OwnerId":"' + ParamId + '"}' as [Parameters]
FROM (
SELECT NEWID() as id,
'OwnerReassign' as name,
1 as TypeId,
'MyOrganisation' as OrgName,
'07DA8E53-74BD-459C-AF94-A037897A51E3' as SystemUserId,
0 as StatusId,
GETDATE() as CreatedAt,
CAST(NEWID() AS VARCHAR (36)) as ParamId,
CAST(AccountId as varchar(50)) as AccountId
FROM Account
WHERE OwnerIdName IN ('John Smith') AND New_AccountType = 1
) A
You can use something like the following. Basically, use a row number for both your IDs and your data table to update, then do a MOD (%) operation with the amount of ID's you want to assign, so your data table to update is split into N groups. Then use that group ID to assign each ID.
IF OBJECT_ID('tempdb..#IDsToAssign') IS NOT NULL
DROP TABLE #IDsToAssign
CREATE TABLE #IDsToAssign (
IDToAssign VARCHAR(100))
-- 3 IDs example
INSERT INTO #IDsToAssign (
IDToAssign)
SELECT IDToAssign = NEWID()
UNION ALL
SELECT IDToAssign = NEWID()
UNION ALL
SELECT IDToAssign = NEWID()
DECLARE #AmountIDsToAssign INT = (SELECT COUNT(1) FROM #IDsToAssign)
IF OBJECT_ID('tempdb..#Account') IS NOT NULL
DROP TABLE #Account
CREATE TABLE #Account (
PrimaryKey INT PRIMARY KEY,
AssignedID VARCHAR(100))
-- 10 Rows example
INSERT INTO #Account (
PrimaryKey)
VALUES
(100),
(200),
(351),
(154),
(194),
(345),
(788),
(127),
(124),
(14)
;WITH DataRowNumber AS
(
SELECT
A.*,
RowNumber = ROW_NUMBER() OVER (ORDER BY (SELECT NULL))
FROM
#Account AS A
),
IDsRowNumbers AS
(
SELECT
D.IDToAssign,
RowNumber = ROW_NUMBER() OVER (ORDER BY D.IDToAssign)
FROM
#IDsToAssign AS D
),
NewIDAssignation AS
(
SELECT
R.*,
IDRowNumberAssignation = (R.RowNumber % #AmountIDsToAssign) + 1
FROM
DataRowNumber AS R
)
UPDATE A SET
AssignedID = R.IDToAssign
FROM
NewIDAssignation AS N
INNER JOIN IDsRowNumbers AS R ON N.IDRowNumberAssignation = R.RowNumber
INNER JOIN #Account AS A ON N.PrimaryKey = A.PrimaryKey
SELECT
*
FROM
#Account AS A
ORDER BY
A.AssignedID
/* Results:
PrimaryKey AssignedID
----------- ------------------------------------
124 1CC7F0F1-7EDE-4F7F-B0A3-739D74A62390
194 1CC7F0F1-7EDE-4F7F-B0A3-739D74A62390
351 1CC7F0F1-7EDE-4F7F-B0A3-739D74A62390
788 2A58A573-EDCB-428E-A87A-6BFCED265A9C
200 2A58A573-EDCB-428E-A87A-6BFCED265A9C
127 2A58A573-EDCB-428E-A87A-6BFCED265A9C
14 2A58A573-EDCB-428E-A87A-6BFCED265A9C
100 FD8036DA-0E15-453E-8A59-FA3C2BDB8FB1
154 FD8036DA-0E15-453E-8A59-FA3C2BDB8FB1
345 FD8036DA-0E15-453E-8A59-FA3C2BDB8FB1
*/
The ordering of the ROW_NUMBER() function will determine how ID's are assigned.
You could potentially do this by using the ROW_NUMBER() field in a subquery; for example:
SELECT NEWID() as id, 'OwnerReassign' as name, 1 as TypeId,
'MyOrganisation' as OrgName,
'07DA8E53-74BD-459C-AF94-A037897A51E3' as SystemUserId,
0 as StatusId, GETDATE() as CreatedAt,
case B / ##ROWCOUNT
when 0 then '0C01C994-1205-E511-988E-26EE4189191B'
when 1 then '12345677-1205-E511-988E-26EE4189191B'
when 2 then '66666666-1205-E511-988E-26EE4189191B'
etc...
end
FROM
(
SELECT ROW_NUMBER() OVER (ORDER BY A.Id)
FROM Account A
WHERE OwnerIdName IN ('John Smith') AND New_AccountType = 1
) AS B
If you want the system to pick those values then you could put then in their own temporary table, too.
Example table:
CREATE TABLE Fruit (
ID int identity(1,1) NOT NULL,
ParentID int NULL,
Name varchar(255)
);
I want to sort parent and child records from the same table in alphabetical order (more than one level deep):
Apples
--Green
----Just Sour
----Really Sour
--Red
----Big
----Small
Bananas
--etc.
I attempted this:
;WITH CTE(ID, ParentID, Name, Sort) AS
(
SELECT
ID
,ParentID
,Name
,cast('\' + Name as nvarchar(255)) AS Sort
FROM Fruit
WHERE ParentID IS NULL
UNION ALL
SELECT
a.ID
,a.ParentID
,a.Name
,cast(b.Sort + '\' + a.Name as nvarchar(255)) AS Sort
FROM Fruit a
INNER JOIN CTE b ON a.ParentID = b.ID
)
SELECT * FROM CTE Order by Sort
This produces results for the sort like:
\Apples
\Apples\Green
\Apples\Green\Just Sour
\etc.
Just when I thought things were good, it isn't reliable. For example, if an item has more than one word. Like:
\Apples
\Apples A <-- culprit
\Apples\Green
If I can expand my question while I'm at it, I'd like to show actual hyphens or something in the results:
Parent
- Child
--Grandchild
The cruddy way I quickly did this was by adding a prefix column in the table with the value of - for all records. Then I could do this:
;WITH CTE(ID, ParentID, Name, Sort, Prefix) AS
(
SELECT
ID
,ParentID
,Name
,cast('\' + Name as nvarchar(255)) AS Sort
,Prefix
FROM Fruit
WHERE ParentID IS NULL
UNION ALL
SELECT
a.ID
,a.ParentID
,a.Name
,cast(b.Sort + '\' + a.Name as nvarchar(255)) AS Sort
,cast(b.Prefix + a.Prefix as nvarchar(10)) AS Prefix
FROM Fruit a
INNER JOIN CTE b ON a.ParentID = b.ID
)
SELECT * FROM CTE Order by Sort
But that seems incorrect or not optimal.
These hierarchical queries still give me a headache, so perhaps I'm just not seeing the obvious.
I tend to use row_number() ordered by Name in this case
Example
Declare #YourTable table (id int,ParentId int,Name varchar(50))
Insert into #YourTable values
( 1, NULL,'Apples')
,( 2, 1 ,'Green')
,( 3, 2 ,'Just Sour')
,( 4, 2 ,'Really Sour')
,( 5, 1 ,'Red')
,( 6, 5 ,'Big')
,( 7, 5 ,'Small')
,( 8, NULL,'Bananas')
Declare #Top int = null --<< Sets top of Hier Try 5
Declare #Nest varchar(25) = '|-----' --<< Optional: Added for readability
;with cteP as (
Select Seq = cast(1000+Row_Number() over (Order by Name) as varchar(500))
,ID
,ParentId
,Lvl=1
,Name
From #YourTable
Where IsNull(#Top,-1) = case when #Top is null then isnull(ParentId ,-1) else ID end
Union All
Select Seq = cast(concat(p.Seq,'.',1000+Row_Number() over (Order by r.Name)) as varchar(500))
,r.ID
,r.ParentId
,p.Lvl+1
,r.Name
From #YourTable r
Join cteP p on r.ParentId = p.ID)
Select A.ID
,A.ParentId
,A.Lvl
,Name = Replicate(#Nest,A.Lvl-1) + A.Name
,Seq --<< Can be removed
From cteP A
Order By Seq
Returns
ID ParentId Lvl Name Seq
1 NULL 1 Apples 1001
2 1 2 |-----Green 1001.1001
3 2 3 |-----|-----Just Sour 1001.1001.1001
4 2 3 |-----|-----Really Sour 1001.1001.1002
5 1 2 |-----Red 1001.1002
6 5 3 |-----|-----Big 1001.1002.1001
7 5 3 |-----|-----Small 1001.1002.1002
8 NULL 1 Bananas 1002
I'm going to guess you want this result
\Apples
\Apples\Green
\Apples A
Maybe try something like this:
SELECT *
FROM CTE
ORDER BY replace(Sort, ' ', '~')
'~' is ascii 126, You can also check using excel sorting.
For each group, grouped using field GRP, I would like to retrieve the most frequently occurring value in column A and the most frequently occurring value in column B, and potentially do this for many other columns.
Sample Data:
GRP | A | B
-----------
Cat | 1 | 1
Cat | 2 | 1
Cat | 3 | 2
Cat | 3 | 3
Dog | 5 | 6
Dog | 5 | 7
Dog | 6 | 7
Expected Output:
GRP | A | B
-----------
Cat | 3 | 1
Dog | 5 | 7
This query achieves that result:
SELECT
freq1.GRP,
freq1.A,
freq2.B
FROM (
SELECT
GRP,
A,
ROW_NUMBER() OVER(PARTITION BY GRP ORDER BY COUNT(*) DESC) AS F_RANK
FROM MyTable
GROUP BY GRP, A
) AS freq1
INNER JOIN (
SELECT
GRP,
B,
ROW_NUMBER() OVER(PARTITION BY GRP ORDER BY COUNT(*) DESC) AS F_RANK
FROM MyTable
GROUP BY GRP, B
) AS freq2 ON freq2.GRP = freq1.GRP
WHERE freq1.F_RANK = 1 AND freq2.F_RANK = 1
It just doesn't look very efficient, and even less so if I were to add a column C, D, etc...
Is there a better way?
I wouldn't say this approach is "better" because it will generate the exact same execution plan. However, I find this type of approach a lot more maintainable as the number of columns might grow. For me this is a lot easier to read.
with GroupA as
(
select Grp
, A
, ROW_NUMBER() over(partition by grp order by count(*) desc) as RowNum
from MyTable
group by Grp, A
)
, GroupB as
(
select Grp
, B
, ROW_NUMBER() over(partition by grp order by count(*) desc) as RowNum
from MyTable
group by Grp, B
)
select a.Grp
, a.A
, b.B
from GroupA a
inner join GroupB b on a.Grp = b.Grp and b.RowNum = 1
where a.RowNum = 1;
An alternative using results ranked in a temp table:
SELECT GRP, A, B,
ROW_NUMBER() OVER (PARTITION BY A ORDER BY GRP, A) ARank,
ROW_NUMBER() OVER (PARTITION BY B ORDER BY GRP, B) BRank
INTO #TMP
FROM MyTable
SELECT t1.GRP,
(SELECT TOP 1 A FROM #TMP WHERE GRP = t1.Grp ORDER BY ARank DESC) A,
(SELECT TOP 1 B FROM #TMP WHERE GRP = t1.Grp ORDER BY BRank DESC) B
FROM MyTable t1
GROUP BY T1.GRP
DROP TABLE #TMP
Full Solution on SQL Fiddle
Schema Setup:
CREATE TABLE MyTable
([GRP] varchar(3), [A] int, [B] int)
;
INSERT INTO MyTable
([GRP], [A], [B])
VALUES
('Cat', 1, 1),
('Cat', 2, 1),
('Cat', 3, 2),
('Cat', 3, 3),
('Dog', 5, 6),
('Dog', 5, 7),
('Dog', 6, 7)
;
Query 1:
SELECT GRP, A, B,
ROW_NUMBER() OVER (PARTITION BY A ORDER BY GRP, A) ARank,
ROW_NUMBER() OVER (PARTITION BY B ORDER BY GRP, B) BRank
INTO #TMP
FROM MyTable
SELECT t1.GRP,
(SELECT TOP 1 A FROM #TMP WHERE GRP = t1.Grp ORDER BY ARank DESC) A,
(SELECT TOP 1 B FROM #TMP WHERE GRP = t1.Grp ORDER BY BRank DESC) B
FROM MyTable t1
GROUP BY T1.GRP
DROP TABLE #TMP
Results:
| GRP | A | B |
|-----|---|---|
| Cat | 3 | 1 |
| Dog | 5 | 7 |
I'll start out this answer by saying this is NOT going to be more efficient to run - it should just be easier to add/subtract columns. To do this you just add them into the code in two places.
You can use dynamic SQL to build your result set like this:
CREATE TABLE ##fields (id INT IDENTITY(1,1),fieldname VARCHAR(255))
INSERT INTO ##fields
( fieldname )
VALUES ('A'),('B') --Add field names here
DECLARE #maxid INT
SELECT #maxid = MAX(id) FROM ##fields
CREATE TABLE ##Output (GRP VARCHAR(3), A INT, B INT) --Add field names here
INSERT INTO ##Output
( GRP )
SELECT DISTINCT GRP FROM MyTable
DECLARE #SQL NVARCHAR(MAX)
DECLARE #i INT = 1
WHILE #i <=#maxid
BEGIN
SELECT #SQL = 'with cte as (SELECT GRP , ' + fieldname + ' ,
ROW_NUMBER() OVER ( PARTITION BY GRP ORDER BY COUNT(*) DESC ) AS F_RANK
FROM MyTable
GROUP BY GRP , ' + fieldname + ')
UPDATE O
SET O.' + fieldname + ' = cte.' + fieldname + '
FROM ##Output O
INNER JOIN cte ON O.GRP = cte.GRP AND cte.F_Rank = 1' FROM ##fields WHERE id = #i
EXEC sp_executesql #sql
SET #i = #i + 1
END
SELECT *
FROM ##Output
DROP TABLE ##fields
DROP TABLE ##Output
Using your simple example above, I received the following performance stats:
Dynamic SQL
CPU = 31
Reads = 504
Duration = 39
Your SQL
CPU = 0
Reads = 6
Duration = 1
Clearly, this way is not a more efficient way of doing this. I did want to throw it out there anyway as an alternative to your current method.
First we create the test data:
DECLARE #MyTable TABLE
(
GRP varchar(10),
A int,
B int
)
INSERT INTO #MyTable
( GRP, A, B)
VALUES
('Cat', 1, 1),
('Cat', 2, 1),
('Cat', 3, 2),
('Cat', 3, 3),
('Dog', 5, 6),
('Dog', 5, 7),
('Dog', 6, 7);
Now we use first_value from a subselect (or a cte if you wanted) and grab the top cat and dog columns
SELECT DISTINCT
GRP,
FIRST_VALUE(A) OVER(PARTITION BY GRP ORDER BY d.A_CNT DESC) AS A_RANK,
FIRST_VALUE(B) OVER(PARTITION BY GRP ORDER BY d.B_CNT DESC) AS B_RANK
FROM
(
SELECT
GRP,
A,
ROW_NUMBER() OVER (PARTITION BY A ORDER BY GRP, A) AS A_CNT,
B,
ROW_NUMBER() OVER (PARTITION BY B ORDER BY GRP, B) AS B_CNT
FROM #MyTable
) d
Output:
GRP A_RANK B_RANK
Cat 3 1
Dog 5 7
I have a following table:
State LAB GROUP DATE CODE ID
UP A I 1-Jan 1 345
UP R S 1-Feb 1 456
UP A S 1-Jan 2 567
DL R S 1-Feb 3 678
DL T S 1-Jan 1 789
DL A S 1-Jan 2 900
MN T S 1-Jan 3 1011
MN R I 1-Feb 1 1122
MN S I 1-Feb 2 1233
I need a pivot table of following type:
STATE A R T TOTAL
UP 2 1 0 3
DL 1 1 1 3
MN 0 1 1 2
DISTINCT COUNT OF ID FOR EACH LAB FOR EACH STATE.
I then need the pivot tables filtered for following columns:
GROUP
DATE
CODE
So 1st table will have the pivot table above counting only those records which have GROUP=S
2nd table will have the pivot table above counting only those records which have CODE=1
and so on, I wish to put multiple conditions. and generate several tables one by one and export them.
If this is possible in SQL please let me know! I ruled out excel vba due to the size of table (source table will have 800,000 records approx).
Try this :-
Select [State],[A],[R],[T],Total = [A] + [R]+ [T]
from
(
Select [State],
[A] = Sum(Case when LAB='A' then 1 else 0 END) ,
[R] = Sum(Case when LAB='R' then 1 else 0 END) ,
[T] = Sum(Case when LAB='T' then 1 else 0 END)
from YourTable
group by [State]
)a
SQL FIDDLE
CREATE TABLE #t(States VARCHAR(10),LAB VARCHAR(5),GROUPs VARCHAR(5),DATEs VARCHAR(10),CODE INT,ID INT)
INSERT INTO #t values('UP','A','I','1-Jan',1,345)
INSERT INTO #t values('UP','R','S','1-Feb',1,456)
INSERT INTO #t values('UP','A','S','1-Jan',2,567)
INSERT INTO #t values('DL','R','S','1-Feb',3,678)
INSERT INTO #t values('DL','T','S','1-Jan',1,789)
INSERT INTO #t values('DL','A','S','1-Jan',2,900)
INSERT INTO #t values('MN','T','S','1-Jan',3,1011)
INSERT INTO #t values('MN','R','I','1-Feb',1,1122)
INSERT INTO #t values('MN','S','I','1-Feb',2,1233)
SELECT States,ISNULL(A,0) A,ISNULL(R,0) R,ISNULL(T,0) T,ISNULL(A,0)+ISNULL(R,0)+ISNULL(T,0) total
FROM
(
SELECT States,LAB,Count(ID) AS cnt FROM #t GROUP BY States,LAB /*apply GROUP DATE CODE condition here*/
) AS PVT
PIVOT(MAX(cnt) FOR LAB IN (A,R,T)) pvt
Another solution using PIVOT :
WITH PivotInUse AS (
SELECT state,lab,COUNT(*) AS cnt
FROM YourTable
GROUP BY state,lab
)
SELECT STATE
,COALESCE([A], 0) AS A
,COALESCE([R], 0) AS R
,COALESCE([T], 0) AS T
,COALESCE([A], 0) + COALESCE([R], 0) + COALESCE([T], 0) AS TOTAL
FROM PivotInUse
PIVOT(SUM(cnt) FOR lab IN ([A],[R],[T])) AS p;
Your sample table
SELECT * INTO #TEMP FROM
(
SELECT 'UP' [State],'A' LAB,'I' [GROUP],'1-Jan' [DATE],1 CODE,345 ID
UNION ALL
SELECT 'UP','R','S','1-Feb',1,456
UNION ALL
SELECT 'UP','A','S','1-Jan',2,567
UNION ALL
SELECT 'DL','R','S','1-Feb',3,678
UNION ALL
SELECT 'DL','T','S','1-Jan',1,789
UNION ALL
SELECT 'DL','A','S','1-Jan',2,900
UNION ALL
SELECT 'MN','T','S','1-Jan',3,1011
UNION ALL
SELECT 'MN','R','I','1-Feb',1,1122
UNION ALL
SELECT 'MN','S','I','1-Feb',2,1233
)TAB
Now you need to get the distinct count of each state and get the sum as the result to show Total
in pivoted result.
SELECT DISTINCT [State],LAB,SUM(CNT) CNT
INTO #NEWTABLE
FROM
(
SELECT DISTINCT
[State],LAB,
CASE WHEN [State] IS NULL THEN NULL ELSE COUNT([State]) OVER(PARTITION BY [State],LAB) END CNT
FROM #TEMP
)TAB
GROUP BY [State],LAB
WITH ROLLUP
Now we need to get the distinct columns for pivot(#cols) and columns to identify and replace null with zero in pivot(#NullToZeroCols)
DECLARE #cols NVARCHAR (MAX)
DECLARE #NullToZeroCols NVARCHAR (MAX)
SET #cols = SUBSTRING((SELECT DISTINCT ',['+LAB+']' FROM #NEWTABLE GROUP BY LAB FOR XML PATH('')),2,8000)
SET #NullToZeroCols = SUBSTRING((SELECT DISTINCT ',ISNULL(['+LAB+'],0) AS ['+LAB+']'
FROM #NEWTABLE GROUP BY LAB FOR XML PATH('')),2,8000)
Join the pivotted query with the #NEWTABLE to get the Total for each State
DECLARE #query NVARCHAR(MAX)
SET #query = 'SELECT P.State,' + #NullToZeroCols + ',T2.CNT TOTAL FROM
(
SELECT DISTINCT [State],LAB,CNT FROM #NEWTABLE
) x
PIVOT
(
SUM(CNT)
FOR [LAB] IN (' + #cols + ')
) p
JOIN #NEWTABLE T2 ON P.[STATE]=T2.[STATE]
WHERE P.State IS NOT NULL AND T2.LAB IS NULL AND T2.[STATE] IS NOT NULL;'
EXEC SP_EXECUTESQL #query
Here is your result
Here is the SQLFiddle http://sqlfiddle.com/#!3/c2588/1 (If it shows any error while loading the page, just click RUNSQL, it will work)
Now if you want to get the result as you said DISTINCT COUNT OF ID FOR EACH LAB FOR EACH STATE, just change
OVER(PARTITION BY [State],LAB)
to
OVER(PARTITION BY [State],LAB,Id)
which will show the following result after executing the pivot query
here is the link of the picture:
help i need to create something like table 3..
i already have a query that has them all except for the count2 column, i don't know how to create that in query..
here's my code in query:
SELECT a.rn,'',a.id, b.iddesc
INTO #x
FROM (
SELECT ROW_NUMBER() OVER (ORDER BY [desc]) AS rn, *
FROM aa
) a, bb AS b
WHERE b.idcon = a.id
SELECT *
FROM #x
sorry i don't know how to explain it well,
Try this one -
Query:
DECLARE #table_a TABLE (id INT, [desc] NVARCHAR(50))
INSERT INTO #table_a (id, [desc])
VALUES
(221, 'aaa'),(222, 'sss'),
(223, 'ddd'),(225, 'fff')
DECLARE #table_b TABLE (idcon INT, iddesc NVARCHAR(50))
INSERT INTO #table_b (idcon, iddesc)
VALUES
(221, 'zxc'),(221, 'sad'),
(221, 'fdfg'),
(222, 'asd'),(222, 'vcx'),
(223, 'zxc'),(223, 'asd'),
(224, 'cxv'),(224, 'asd'),
(225, 'zcx'),(225, 'asd'),
(225, 'qwe'),(225, 'wer')
SELECT
idcon
, [desc] = iddesc
, count1
, count2 = ROW_NUMBER() OVER (PARTITION BY id ORDER BY [desc]) - 1
FROM (
SELECT *, count1 = ROW_NUMBER() OVER (ORDER BY id)
FROM #table_a
) a
JOIN #table_b ON id = idcon
Results:
idcon desc count1 count2
------- ------ ------- -------
221 zxc 1 0
221 sad 1 1
221 fdfg 1 2
222 asd 2 0
222 vcx 2 1
223 zxc 3 0
223 asd 3 1
225 zcx 4 0
225 asd 4 1
225 qwe 4 2
225 wer 4 3
Try this
SELECT
DENSE_RANK() OVER (ORDER BY idcon) AS Count1
, (ROW_NUMBER() OVER (PARTITION BY idcon ORDER BY idcon)) - 1 AS Count2
, idcon
, iddesc
FROM Table_b b
INNER JOIN Table_a a ON a.ID = b.idcon
Here is SQLFiddle demo