Display row into column in SQL - sql

Question

I have Two SQL Table
1st Table Name :- AttributeType
ID
Name
1
Name
2
Address
3
Amount
2nd Table Name :- AttributeValue
ID
AttributeId
Value
1
1
John
2
2
Ohio,USA
3
3
500$
I want to combine this two table and join with other table column name will be display as per value in Attribute type table (if there is 5 rows, 5 column will be display in output table)
Output would be
Output table
ID
Name
Address
Amount
1
John
Ohio,USA
500$
I don't have idea about how to write query
Can anyone help me?
Thanks in advance.

Answer 1

I have added some changes to the data given above. Your Table column name and value is same which is a problem when using pivoting logic. So I changed it. ID id taken indirectly using rownumber. if we use id provided in the table, it will not give you proper result.
create table AttributeType
(ID int
,[AttName] varchar(100) --Changed to [AttName]
)
insert into AttributeType values (1, 'Name')
,(2,'Address')
,(3, 'Amount')
Create table AttributeValue
(
ID int
, AttributeId int
, [Value] varchar(100)
)
insert into AttributeValue values (1,1,'John')
,(2,2, 'Ohio,USA')
,(3,3, '500$')
SELECT
ROW_NUMBER() OVER (ORDER BY [Name]) as ID ,[Name], address, Amount FROM
(
SELECT
[a].[AttName]
,[av].[Value]
FROM AttributeValue av
INNER JOIN AttributeType [a]
ON a.ID = av.AttributeId
) as [sourceTable]
PIVOT
(
MAX([sourceTable].[Value] ) FOR [sourceTable].[AttName] IN ([Name], [Address],[Amount])
) AS pivoted
Dynamic Approach
DECLARE #cols AS NVARCHAR(MAX),
#query AS NVARCHAR(MAX);
SET #cols = STUFF((SELECT distinct ',' + QUOTENAME(a.[AttName])
FROM AttributeType [a]
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set #query = 'SELECT ROW_NUMBER() OVER (ORDER BY [Name]) as ID , ' + #cols + ' from
(
SELECT
[a].[AttName]
,[av].[Value]
FROM AttributeValue av
INNER JOIN AttributeType [a]
ON a.ID = av.AttributeId
) as [sourceTable]
pivot
(
MAX([sourceTable].[Value] ) FOR
[sourceTable].[AttName] in (' + #cols + ')
) as pivoted '
execute(#query)

Answer 2

We can use pivoting logic here:
SELECT
av.ID,
MAX(CASE WHEN at.Name = 'Name' THEN av.Value END) AS Name,
MAX(CASE WHEN at.Name = 'Address' THEN av.Value END) AS Address,
MAX(CASE WHEN at.Name = 'Amount' THEN av.Value END) AS Amount
FROM AttributeValue av
INNER JOIN AttributeType at
ON at.ID = av.AttributeId
GROUP BY
av.ID;
Note: There appears to be a type in your AttributeValue table. In order for this to work, all ID values for a given person should have the same value. In this case, all three sample records should have an ID value of 1.