Save query results to a SQL file programmatically - sql-server

Question

I have a stored procedure that generates Insert and Update statements. So I want the proc to save the results to a .sql file.
ALTER PROCEDURE [dbo].[Sp_GenerateScripts]
#FilePath NVARCHAR(MAX) = ''
AS
BEGIN
SET NOCOUNT ON;
DECLARE #Message NVARCHAR(155)
DECLARE #Query NVARCHAR(MAX) = ''
DECLARE #GenerateInserts NVARCHAR(MAX) = ''
DECLARE #GenerateUpdates NVARCHAR(MAX) = ''
IF OBJECT_ID('tempdb..##DataImport') IS NOT NULL DROP TABLE ##DataImport
CREATE TABLE ##DataImport
(
[LongTextId] varchar(150) NULL,
[Code] [nvarchar](255) NULL,
[Product] [nvarchar](max) NULL,
[Category] [nvarchar](max) NULL,
[Subsegment] [nvarchar](max) NULL,
[DescriptionText] [nvarchar](max) NULL,
[eDate] [nvarchar](max) NULL,
[ExpirationDate] [nvarchar](max) NULL,
[UpdatedOn] [nvarchar](max) NULL
)
--BULK INSERT ##DataImport from 'C:\CSV Files\file.csv' WITH
SET #Query = 'BULK INSERT ##DataImport FROM ''' + #FilePath + ''' WITH
(
FIELDTERMINATOR = ''|'',
FIRSTROW = 2
)';
exec sp_executesql #Query;
/*CSV Data Cleansing*/
UPDATE ##DataImport
set [LongTextId] = NEWID()
WHERE LEN([LongTextId]) != 36
UPDATE ##DataImport
SET UpdatedOn = SUBSTRING(UpdatedOn, 1, CHARINDEX('|', UpdatedOn) - 1)
DELETE ##DataImport WHERE LongTextId IS NULL;
SELECT 'BEGIN TRAN'
UNION ALL
SELECT
--*,
'UPDATE [dbo].[Table1] SET'
+ ' [Code] = ''' + [Code] + ''''
+ ', [Product] = ''' + [Product] + ''''
+ ', [Category] = ''' + [Category] + ''''
+ ', [Subsegment] = ''' + [Subsegment] + ''''
+ ', [DescriptionText] = ''' + REPLACE([DescriptionText], '''', '''''') + ''''
+ ', [Date] = ''' + [EffectiveDate] + ''''
+ ', [ExpirationDate] = ''' + [ExpirationDate] + ''''
+ ', [UpdatedOn] = ''' + [UpdatedOn] + ''''
+ ' WHERE [LongTextId] = ''' + [LongTextId] + ''';' + CHAR(10)
from ##DataImport src
WHERE EXISTS
(
SELECT 1
FROM
[dbo].TABLE1 AS dest
WHERE
dest.[LongTextId] = src.[LongTextId]
)
UNION ALL
SELECT 'INSERT INTO [dbo].[TABLE1] ([Subsegment], [DescriptionText], [LongTextId], [Code], [Date], [ExpirationDate], [Product], [Category], [UpdatedOn]) VALUES ('
+ '''' + [CustomerSubsegment] + ''', '
+ '''' + REPLACE([DescriptionText], '''', '''''') + ''', '
+ '''' + [LongTextId] + ''', '
+ '''' + [Code] + ''', '
+ '''' + [Date] + ''', '
+ '''' + [Expirationdate] + ''', '
+ '''' + [Product] + ''', '
+ '''' + [Category] + ''', '
+ '''' + [UpdatedOn] + ''');'
from ##DataImport src
WHERE NOT EXISTS
(
SELECT 1
FROM
[dbo].[TABLE1] AS dest
WHERE
dest.[LongTextId] = src.[LongTextId]
)
UNION ALL
SELECT 'COMMIT TRAN'
END
This proc works fine and this is how I call it:
EXEC [dbo].[Sp_GenerateScripts] 'C:\CSV Files\Text_3.csv'
What I need to do is to write the results of the stored proc to a .sql file somewhere to a shared folder or local folder doesn't matter. So I have tried to do it in powershell as this
sqlcmd -S SERVER-PC -d DB1 -E -Q "EXEC [dbo].[Sp_GenerateScripts] 'C:\CSV Files\Text_3.csv'" -o "C:\Export.sql"
In powershell its working but I don't want to use this method. Is there a way I can do this in T-SQL? If yes, how can I modify my stored proc to do this?

Answer 1

You can execute the same sqlcmd command from TSQL using xp_Cmdshell. But, using xp_cmdshell comes with its own risks, as it can run system commands. So, care should be taken care before enabling this option using sp_configure. Also, if you are planning to use this, it is better to execute using least privileged user context. You can configure proxy account to execute with xp_cmdshell using sp_xp_cmdshell_proxy_account.
Read more on xp_cmdshell
EXEC xp_cmdshell 'sqlcmd -S SERVER-PC -d DB1 -E
-Q "EXEC [dbo].[Sp_GenerateScripts] ''C:\CSV Files\Text_3.csv''" -o "C:\Export.sql"'
If xp_cmdshell is not recommended as a security practice, alternatively, you can have a CLR stored procedure, especially for this purpose. Again, that requires enabling CLR using sp_configure.