How to insert keyvalue as a row in table? - sql

Question

I have table variable which contains records in terms of key,value pair of a table. where key is the column of table and value is the value for that column
below is table variable
DECLARE #Table TABLE(
FieldName varchar(100),
FieldValue varchar(max))
insert into #Table values('Title','NewFrom')
insert into #Table values('Points','4')
insert into #Table values('createdby','5')
I have above values in UsersInformation.This is physical table of sql server
has following column.
UserID int autoincrement(identity)
Title nvarchar(100),
Points int,
createdby int
I want that all values of #Table should be as a single row of UserInformation table.
How can be using sql server?

Answer 1

Have not tested but this should work
INSERT INTO UsersInformation (Title, Points, createdby)
SELECT Title, Points, createdby FROM (SELECT FieldName, FieldValue
FROM #Table) AS SourceTable
PIVOT (MAX(FieldValue) FOR FieldName IN ([Points], [Title], [createdby])) AS PivotTable;
Based on your comment you will need to add a key to your source #table
DECLARE #Table TABLE(
id int,
FieldName varchar(100),
FieldValue varchar(max))
insert into #Table values(1,'Title','NewFrom')
insert into #Table values(1,'Points','4')
insert into #Table values(1,'createdby','5')
insert into #Table values(2,'Title','NewFrom2')
insert into #Table values(2,'Points','44')
insert into #Table values(2,'createdby','55')
insert into #Table values(3,'Title','NewFrom3')
insert into #Table values(3,'Points','444')
Then you can run the query:
SELECT [Title], [Points], [createdby]
FROM #Table
PIVOT
(
max(FieldValue) FOR [FieldName] IN ([Title], [Points], [createdby])
) AS P