I am stuck on a SQL query. I have results as below in a table and have to display the final result in a report as below:
id Question
-------------
13 ABC
13 ABC
13 QWE
13 ABC
13 QWE
13 ABC
Expected result:
id Result
--------------------
13 4 ABC, 2 QWE
Can somebody please help me out? Thank you.
This requires pre-aggregation and string aggregation.
with t as (
select id, question, count(*) as cnt
from t
group by id
)
select i.id,
stuff( (select ', ' + convert(varchar(255), cnt) + ' ' + question
from t t2
where t2.id = i.id
for xml path ('')
), 1, 2, ''
) as result
from (select distinct id from t) i;
--testdata-begin
if not object_id(N'Tempdb..#T') is null
drop table #T
Go
Create table #T([id] int,[Question] nvarchar(23))
Insert #T
select 13,N'ABC' union all
select 13,N'ABC' union all
select 13,N'QWE' union all
select 13,N'ABC' union all
select 13,N'QWE' union all
select 13,N'ABC'
Go
--testdata-end
WITH cte AS (
Select id,Question,COUNT(1) AS num from #T GROUP BY id,Question
)
SELECT id,
STUFF(
(
SELECT ',' + RTRIM(b.num) + ' ' + b.Question
FROM cte b
WHERE a.id = b.id
FOR XML PATH('')
),
1,
1,
''
) AS Result
FROM cte a
GROUP BY id;
Related
i want join some table then concatenation columns
MyTable
-------------------------------
ID RowId LangId Caption
-------------------------------
1 1 1 ڕۆشتن
2 1 2 Go
3 1 3 اذهب
4 2 1 ئاو
5 2 2 water
6 2 3 ماء
I want join concatenation Caption column ex: for RowId 1 'ڕۆشتن - Go - اذهب'
Desired output
--------------------
RowId Caption
--------------------
1 ڕۆشتن - Go - اذهب
2 ئاو- water - ماء
I seen link but can't help me
You can use string_agg():
select rowid,
string_agg(caption, ' ') within group (order by langid) as caption
from t
group by rowid;
You can use for xml for older vresion :
select r.rowid,
stuff( (select ' - '+t.caption
from table t
where t.rowid = r.rowid
order by t.LangId
for xml path('')
), 1, 1, ''
) as Caption
from (select distinct rowid from table ) r;
You can use string_agg() for newer version SQL Server 17+ :
select t.rowid,
string_agg(t.caption, ' ') within group (order by t.langid) as caption
from table t
group by t.rowid;
You can try the following query using for xml as shown below.
SELECT DISTINCT t.RowId,
STUFF((SELECT distinct ' - ' + t1.[Caption]
FROM
(
SELECT t.[RowId],
t2.Caption
FROM [TestTable] AS t
INNER JOIN [TestTable] AS t2 ON t2.[RowId] = t.[RowId]
)
t1
WHERE t.RowId = t1.RowId
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'') CaptionList
FROM
(
SELECT t.[RowId],
por.Caption
FROM [TestTable] AS t
INNER JOIN [TestTable] AS por ON por.RowId = t.RowId
)t;
Here is the live db<>fiddle demo.
Try this:
SELECT DISTINCT RowID,
STUFF((SELECT DISTINCT Sub.caption +' - '
FROM #tab Sub
WHERE Sub.rowid = Main.rowid
FOR XML PATH('')), 1, 1, '') AS Caption
FROM #tab Main
I think this Query can perfectly fit for your case.
I am using an SQL Server database and have these following tables
Table "Data"
--------------------------------------------------------------------------------------------------|
| Id |col_1_type | col_1_name | col_2_type | col_2_name | col_3_type | col_3_name |
--------------------------------------------------------------------------------------------------|
| 1 |KI | Inflation Rate | KI | Currency Rate | MI | Government Spending |
--------------------------------------------------------------------------------------------------|
And i just want to make my result to be like this:
+----+------------------------+
| Id | results |
+----+------------------------+
| 1 | KI-Inflation Rate |
| 2 | KI-Currency Rate |
| 3 | MI-Government Spending |
+----+------------------------+
The column name is mandatory though, thats what made it complicated i guess?
i know you can merge 2 values or concatenate it, but i'm stuck on the column name such as col_1_name and col_2_type. Do i need to use regexp maybe?
Please try this-
select ROW_NUMBER() OVER (ORDER BY (select null)) id , results
from
(
SELECT CONCAT(col_1_type,'-',col_1_name) results
FROM [Data]
UNION ALL
SELECT CONCAT(col_2_type,'-',col_2_name)
FROM Data
UNION ALL
SELECT CONCAT(col_3_type,'-',col_3_name)
FROM Data
)o
Or this also
SELECT Id,results
FROM Data
CROSS apply
(VALUES (CONCAT(col_1_type,'-',col_1_name),1),(CONCAT(col_2_type,'-',col_2_name),2)
,(CONCAT(col_3_type,'-',col_3_name) ,3) ) cs (results,Id)
I would use of cross apply with the help of CTE and stuff()
;with cte as
(
select a.* from table t
cross apply (
values
(t.col_1_type, 'col_1'),
(t.col_1_name, 'col_1'),
(t.col_2_type, 'col_2'),
(t.col_2_name, 'col_2'),
(t.col_3_type, 'col_3'),
(t.col_3_name, 'col_3')
) a(name, id)
)
select distinct stuff(
(select '-'+name from cte where id= c.id for xml path('')),
1,1, ''
) [Results],
from cte c
EDIT :
Not sure about Id column but my guess that could be resolved by using ranking function
select row_number() over (order by (select 1)) Id,
cc.Results from
(
select distinct stuff(
(select '-'+id from cte where name = c.name for xml path('')),
1,1, ''
) [Results]
from cte c
) cc
Result :
Id Results
1 KI-Currency Rate
2 KI-Inflation Rate
3 MI-Government Spending
Sample data
IF OBJECT_ID('tempdb..#t') iS NOT NULL
DROP TABLE #t
IF OBJECT_ID('dbo.temp','U') iS NOT NULL
DROP TABLE temp
;With CTe(
Id ,col_1_type , col_1_name, col_2_type , col_2_name, col_3_type , col_3_name )
AS
(
SELECT 1,'KI','Inflation Rate','KI','Currency Rate','MI','Government Spending'
)
SELECT * INTO temp FROM CTe
Using Dynamic sql
DECLARE #Sqlstring nvarchar(max)
,#SQlQuery nvarchar(max)
;WITH cte
AS
(
SELECT COLUMN_NAME ,
((ROW_NUMBER()OVER(ORDER BY (SELECT NULL))-1)/2 )+1 AS BatchSeq
FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME='temp' AND COLUMN_NAME<>'Id'
)
SELECT #Sqlstring=STUFF((SELECT ', '+COLUMN_NAME FROM
(
SELECT DISTINCT '('+STUFF((SELECT ', '+COLUMN_NAME
FROM cte i
WHERE i.BatchSeq=o.BatchSeq FOR XML PATH ('')),1,1,'') +')' AS COLUMN_NAME
FROM cte o
)dt
FOR XML PATH ('')),1,1,'')
SET #SQlQuery='
SELECT ROW_NUMBER() OVER(ORDER BY (SELECT 1)) AS ID,
CONCAT(col_type,''-'',Col_names) AS Result
FROM Temp
CROSS APPLY ( VALUES '+#Sqlstring+') dt(col_type,Col_names)'
PRINT #SQlQuery
EXEC(#SQlQuery)
Result
ID Result
-----------------------
1 KI-Inflation Rate
2 KI-Currency Rate
3 MI-Government Spending
Try like this
select (column1 || ' '|| column2) from table;
or
SELECT tablename.col_1_type + ' ' + tablename.col_1_name AS results;
I need to change an application and the first thing I need is to change a field in a database table.
In this table I now have 1 to 6 single characters, i.e. 'abcdef'
I need to change this to '[a][b][c][d][e][f]'
[edit] It is meant to stay in the same field. So before field = 'abcdef' and after field = '[a][b][c][d][e][f]'.
What would be a good way to do this?
rg.
Eric
You can split string to separate characters using following function:
create function ftStringCharacters
(
#str varchar(100)
)
returns table as
return
with v1(N) as (
select 1 union all select 1 union all select 1 union all select 1 union all select 1
union all
select 1 union all select 1 union all select 1 union all select 1 union all select 1
),
v2(N) as (select 1 from v1 a, v1 b),
v3(N) as (select top (isnull(datalength(#str), 0)) row_number() over (order by ##spid) from v2)
select N, substring(#str, N, 1) as C
from v3
GO
And then apply it as:
update t
set t.FieldName = p.FieldModified
from TableName t
cross apply (
select (select quotename(s.C)
from ftStringCharacters(t.FieldName) s
order by s.N
for xml path(''), type).value('text()[1]', 'varchar(20)')
) p(FieldModified)
SQLFiddle sample
DECLARE #text NVARCHAR(50)
SET #text = 'abcdef'
DECLARE #texttable TABLE (value NVARCHAR(1))
WHILE (len(#text) > 0)
BEGIN
INSERT INTO #texttable
SELECT substring(#text, 1, 1)
SET #text = stuff(#text, 1, 1, '')
END
select * from #texttable
Without using a function:
declare #t table(C varchar(18))
insert #t values('abc'), ('1234'), (' 1234a')
;with CTE as
(
select C, '[' + substring(c, a.n, 1) + ']' v, rn from
(select 1 n union all
select 2 union all
select 3 union all
select 4 union all
select 5 union all
select 6) a
cross apply
(select c, row_number() over (order by C) rn from #t group by c) b
where a.n <= len(C)
)
update t3
set C = t4.[value]
FROM #t t3
JOIN
(
select C,
(
select v
from CTE t1
where t1.rn = t2.rn
for xml path(''), type
).value('.', 'varchar(18)') [value]
from CTE t2
group by t2.rn, C
) t4
ON t3.C = t4.C
SELECT * FROM #t
JOIN three tables and aggregate data from multiple rows for every DISTINCT row in separate column
i have a table where one item is mapped with multiple items.
Key 1 | Key 2
1 2
1 5
1 6
1 4
1 8
I have another table like this
Key 1 | ShortKey1Desc
1 'Desc short'
i have one more table where i have data like this
Key 1 | Description
1 'Desc a'
1 'Desc c'
1 'Desc aa'
1 'Desc tt'
i need to write a sql query for my view where table would be generated like this
Key 1 | AllKeys2ForKey1 | AllDescriptionsForKey1 | ShortKey1Desc
1 | 2;5;6;4;8 | Desc a; Desc c; Desc aa; Desc tt | Desc short
Key 1 is a string type field so i need to join them table using that string key
what i'm trying is to create a view for comfortable data access. need to create a query what will not take ages. i already tried to do it with Functions but it takes ages for load.
any help on this one would be highly appreciated. thanks a lot
Assuming that you are unable to change the data structures to make a more efficient query, this will work:
--Populate sample data
SELECT 1 as key1, 2 as key2 INTO #tbl1
UNION ALL SELECT 1, 5
UNION ALL SELECT 1, 6
UNION ALL SELECT 1, 4
UNION ALL SELECT 1, 8
SELECT 1 as key1, 'Desc short' as shortkeydesc INTO #tbl2
SELECT 1 as key1, 'Desc a' as [description] INTO #tbl3
UNION ALL SELECT 1, 'Desc c'
UNION ALL SELECT 1, 'Desc aa'
UNION ALL SELECT 1, 'Desc tt'
--Combine data into semi-colon separated lists
SELECT
key1
,STUFF(
(
SELECT
';' + CAST(t2.key2 AS VARCHAR(10))
FROM #tbl1 t2
WHERE t2.key1 = tbl1.key1
FOR XML PATH('')
), 1, 1, ''
)
,STUFF(
(
SELECT
';' + tbl2.shortkeydesc
FROM #tbl2 tbl2
WHERE tbl2.key1 = tbl1.key1
FOR XML PATH('')
), 1, 1, ''
)
,STUFF(
(
SELECT
';' + tbl3.[description]
FROM #tbl3 tbl3
WHERE tbl3.key1 = tbl1.key1
FOR XML PATH('')
), 1, 1, ''
)
FROM #tbl1 tbl1
GROUP BY tbl1.key1
to convert rows into one single result you will need to save values in a variable, below is sample code just to give you an idea
Declare #AllKeys2ForKey1 varchar(50)
set #AllKeys2ForKey1 = ''
SELECT #AllKeys2ForKey1 = #AllKeys2ForKey1 + cast([Key 2] as varchar(3)) + ','
FROM [AllKeys2ForKey1Table] where [KEY 1] = 1
Declare #AllDescriptionsForKey1 varchar(100)
set #AllDescriptionsForKey1 = ''
SELECT #AllKeys2ForKey1 = #AllKeys2ForKey1 + [Description] + ','
FROM [AllDescriptionsForKey1Table] where [KEY 1] = 1
Declare #ShortKey1Desc varchar(100)
set #ShortKey1Desc = ''
SELECT #ShortKey1Desc = #ShortKey1Desc + [ShortKey1Desc] + ','
FROM [ShortKey1DescTable] where [KEY 1] = 1
Select [KEY 1],
substring(#AllKeys2ForKey1,1,len(#AllKeys2ForKey1) - 1) as 'AllKeys2ForKey1 ',
substring(#AllDescriptionsForKey1,1,len(#AllDescriptionsForKey1) - 1) as 'AllDescriptionsForKey1',
substring(#ShortKey1Desc,1,len(#ShortKey1Desc) - 1) as 'ShortKey1Desc'
from Table where [KEY 1]= 1
You Must Write CLR Aggregate Function for Solving This Question.
for write CLR Aggregate Function :
1: Run Microsoft Visual Stadio
2: Create New Project
3: then Select Data Project
4: CLR Aggregate Function
After Create Your Aggregate Function Create Your Query Such as Below
Select A.Key1, OwnAggregateFn(B.Description), OwnAggregateFn(C.Key2), ...
From A
inner join B ON B.Key1 = A.Key1
inner join C ON C.Key1 = A.Key1
...
Group By A.Key1
Let´s say I have two tables, "Garden" and "Flowers". There is a 1:n-relationship between these tables, because in a garden can be many flowers. Is it possible to write an SQL query which returns a result with the following structure:
GardenName Flower1Name Flower2Name .... (as long as there are entries in flowers)
myGarden rose tulip
CREATE TABLE #Garden (Id INT, Name VARCHAR(20))
INSERT INTO #Garden
SELECT 1, 'myGarden' UNION ALL
SELECT 2, 'yourGarden'
CREATE TABLE #Flowers (GardenId INT, Flower VARCHAR(20))
INSERT INTO #Flowers
SELECT 1, 'rose' UNION ALL
SELECT 1, 'tulip' UNION ALL
SELECT 2, 'thistle'
DECLARE #ColList nvarchar(max)
SELECT #ColList = ISNULL(#ColList + ',','') + QUOTENAME('Flower' + CAST(ROW_NUMBER() OVER (ORDER BY (SELECT 0)) AS VARCHAR))
FROM #Flowers WHERE GardenId = (
SELECT TOP 1 GardenId
FROM #Flowers
ORDER BY COUNT(*) OVER (PARTITION BY GardenId) DESC
)
EXEC (N'
;WITH cte As
(
SELECT *, ''Flower'' + CAST(ROW_NUMBER() OVER (PARTITION BY GardenId ORDER BY (SELECT 0)) AS VARCHAR) RN
FROM #Flowers F
)
SELECT Name,' + #ColList + N'
FROM cte
JOIN #Garden g ON g.Id = GardenId
PIVOT (MAX(Flower) FOR RN IN (' + #ColList + N')) Pvt')
DROP TABLE #Garden
DROP TABLE #Flowers
Returns
Name Flower1 Flower2
-------------------- -------------------- --------------------
myGarden rose tulip
yourGarden thistle NULL
Look at using Pivot in SQL Server. Here is a good link that goes over how it works:
http://www.kodyaz.com/articles/t-sql-pivot-tables-in-sql-server-tutorial-with-examples.aspx
Ok, i think i got it working. Try this:
with temp as
(
select 'myGarden' as name, 'test1' as flower
union
select 'myGarden','test2'
union
select 'myGarden','test5'
union
select 'abeGarden','test4'
union
select 'abeGarden','test5'
union
select 'martinGarden', 'test2'
)
select* from temp
pivot
(
max(flower)
for flower in (test1,test2,test3,test4,test5)
) PivotTable
You could also make the values in the in clause dynamic. Since this is a CTE i can't in my example.
Dynamic SQL with a cursor is the only way I can think of, and it won't be pretty.
If you only want the results for one garden at a time this would give you the data:
select gardenName from tblGarden where gardenid = 1
Union ALL
select tblFLowers.flowerName from tblFlowers where gardenid = 1