How use dynamic folder and file in stored procedure?

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Sir

I have to import flat file into mssql 2019
But I have created stored procedure to import .txt file using asp.net page
I have fixed path and file name. Its working fine.
I need advice how to do ,user select folder and file name dynamically

Pls advice me
thank you
Maideen

Here is my working code.
Currently folder: C:\textfiles
File name : test.txt

What I have tried:

insert into [dbo].[ZZ_Flat_Data]
(CoCode, CoName, CoAddress1, CoAddress2, CoAddress, CoPost, SPeron, Transporter, DocDate, DocNo, 
Category, Amount, Type)
SELECT * FROM OPENROWSET ('Microsoft.ACE.OLEDB.12.0', 'Text;Database=C:\textfiles; ',
'SELECT CoCode, CoName, CoAddress1, CoAddress2, CoAddress, CoPost, SPeron, Transporter, DocDate, DocNo, 
Category, Amount, Type FROM test.txt')

Posted 15-Sep-21 14:20pm

Maideen Abdul Kader

Updated 15-Sep-21 16:59pm

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Wendelius · Accepted Answer · 2021-09-15T16:59:00

You can first build the statement into a string and then use EXECUTE (Transact-SQL) - SQL Server | Microsoft Docs[^] to run it.

Consider the following example

SQL

declare @location as varchar(100)
declare @tablename as varchar(100)
declare @query varchar(5000)

set @location = 'C:\textfiles';
set @tablename = 'test.txt';

set @query = 'insert into [dbo].[ZZ_Flat_Data]
(CoCode, CoName, CoAddress1, CoAddress2, CoAddress, CoPost, SPeron, Transporter, DocDate, DocNo, 
Category, Amount, Type)
SELECT * FROM OPENROWSET (''Microsoft.ACE.OLEDB.12.0'', ''' + @location + ''',
''SELECT * FROM ' + @tablename +''')';

print @query
execute(@query)

This would build the string and print it as follows

insert into [dbo].[ZZ_Flat_Data]
(CoCode, CoName, CoAddress1, CoAddress2, CoAddress, CoPost, SPeron, Transporter, DocDate, DocNo, 
Category, Amount, Type)
SELECT * FROM OPENROWSET ('Microsoft.ACE.OLEDB.12.0', 'C:\textfiles',
'SELECT * FROM test.txt')

and the run it using execute