Data insert into table dynamically - sql

Question

Example query which I used
Declare #DataColumn table (id int not null primary key identity(1,1), ColumnName Nvarchar(250),DataValue Nvarchar(250))
insert into #DataColumn
select DataColumnName, DataValue
from CustomObjectMappingTable obm
join #price_tmp temp on obm.ObjectFieldName = temp.FieldName
where temp.DataValue <> ''
select * from #DataColumn
Result is :
id ColumnName DataValue
-------------------------
1 Column_1 Umar Mehmood
2 Column_2 27
3 Column_3 21-nov-1992
4 Column_4 Male
5 Column_5 Gujar Khan District RWP
I have data into temp table and I need to insert into physical table using temp table. I want to use from temptable first columndata as " ColumnName" and second column data as "Data" how can I do this any one help me please?
Query for inserting
insert into CustomData (#DataColumn.ColumnName)
select *
from
(select DataValue, ColumnName
from #DataColumn) d
pivot
(max(DataValue)
for ColumnName in (ColumnName)
) piv;
Need it dynamically

Answer 1

Try the following:
DECLARE #DataColumn table ( id int, ColumnName varchar(50), DataValue varchar(50) );
INSERT INTO #DataColumn VALUES
( 1, 'Column_1', 'Umar Mehmood' ),
( 2, 'Column_2', '27' ),
( 3, 'Column_3', '21-nov-1992' ),
( 4, 'Column_4', 'Male' ),
( 5, 'Column_5', 'Gujar Khan District RWP' );
DECLARE #insert_columns varchar(MAX) = (
SELECT STUFF(
( SELECT ',[' + ColumnName + ']' FROM #DataColumn ORDER BY id FOR XML PATH( '' ) ),
1,
1,
''
)
);
DECLARE #insert_values varchar(MAX) = STUFF ( (
SELECT ',(' + STUFF(
( SELECT ',''' + DataValue + '''' FROM #DataColumn ORDER BY id FOR XML PATH( '' ) ),
1,
1,
''
) + ')'
), 1, 1, '' );
DECLARE #tsql varchar(MAX) = 'INSERT INTO CustomData (' + #insert_columns + ') VALUES ' + #insert_values + ';';
--EXEC(#tsql); -- Uncomment this line to execute the dynamic SQL.
PRINT #tsql;
The printed dynamic SQL:
INSERT INTO CustomData ([Column_1],[Column_2],[Column_3],[Column_4],[Column_5]) VALUES ('Umar Mehmood','27','21-nov-1992','Male','Gujar Khan District RWP');

Answer 2

We can do it using pivot table for dynamically
DECLARE #cols NVARCHAR(MAX), #query NVARCHAR(MAX) , #DataValues NVARCHAR(max);
SET #cols = STUFF( (SELECT DISTINCT ','+QUOTENAME(ColumnName) FROM ##DataColumn c FOR XML PATH(''), TYPE ).value('.', 'nvarchar(max)'), 1, 1, '');
SET #query = 'SELECT * from ( select [ColumnName],[DataValue] from ##DataColumn
) as sourcetable pivot (max(DataValue) for[ColumnName] in ('+#cols+')) p order by 1 ';
Insert into customdata ( [Column_1],[Column_2],[Column_3],[Column_4],[Column_5])
SELECT * from ( select [ColumnName],[DataValue] from #DataColumn ) as sourcetable
pivot (max(DataValue) for[ColumnName] in ([Column_1],[Column_2],[Column_3],[Column_4],[Column_5])) p order by 1