Eliminating Null After Pivoting the Column

Question

hello,
I have a request where we are suppoed to Pivot a columns to Rows, doing so we get nulls. My questions here is  what is the best approach to Pivot and Eliminate Nulls. does anyone came across anything similar?
ID
Name
Typeof   record
Data1 
Data   2
Data3
1
John
Type A
100
400
700
2
John
Type b
200
500
800
3
John
Type c
300
600
900
4
Marry
Type A
1000
4000
7000
5
Marry
Type b
2000
5000
8000
6
Marry
Type c
3000
6000
9000
To
ID
Name
PersonsData
Type A
Type B
Type C
1
John
Data1
100
2
John
Data1
200
3
John
Data1
300
1
John
Data2
400
2
John
Data2
500
3
John
Data2
600
1
John
Data3
700
2
John
Data3
800
3
John
Data3
900
4
Marry
Data1
1000
5
Marry
Data1
2000
6
Marry
Data1
3000
4
Marry
Data2
4000
5
Marry
Data2
5000
6
Marry
Data2
6000
4
Marry
Data3
7000
5
Marry
Data3
8000
6
Marry
Data3
9000

Answer 1

How are you doing it?
Based on what you are showing us, you are unpivoting the [data] columns and pivoting the [type of record]. Then you will need to group by [name] and [person_data] but you will need to get rid of the [id] column because it is represented by the new columns
derived from [type_of_record] or removing it previous to the pivoting (guessing they are tied (id, type_of_record)).
DECLARE @T table (
id int,
name varchar(35),
type_of_record varchar(15),
data1 int,
data2 int,
data3 int);
INSERT INTO @T
(id, name, type_of_record, data1, data2, data3)
VALUES
(1, 'John', 'Type a', 100, 400, 700),
(2, 'John', 'Type b', 200, 500, 800),
(3, 'John', 'Type c', 300, 600, 900),
(4, 'Marry', 'Type a', 1000, 4000, 7000),
(5, 'Marry', 'Type b', 2000, 5000, 8000),
(6, 'Marry', 'Type c', 3000, 6000, 9000);
SELECT
P.name,
p.person_data,
MAX([Type a]) AS [type a],
MAX([Type b]) AS [type b],
MAX([Type c]) AS [type c]
FROM
@T
UNPIVOT
(value FOR person_data IN ([data1], [data2], [data3])) AS U
PIVOT
(MAX(value) FOR type_of_record IN ([Type a], [Type b], [Type c])) AS P
GROUP BY
P.name,
p.person_data
ORDER BY
P.name,
p.person_data;
-- removing column id previous to the pivoting
WITH R1 AS (
SELECT
U.name,
U.type_of_record,
U.person_data,
U.value
FROM
@T
UNPIVOT
(value FOR person_data IN ([data1], [data2], [data3])) AS U
SELECT
P.*
FROM
R1
PIVOT
(MAX(value) FOR type_of_record IN ([Type a], [Type b], [Type c])) AS P;
GO
AMB
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