T-SQL finding out which row causes the error - sql-server

Question

I have a stored procedure that inserts thousands of rows and if there is bad data in any of the rows, it fails. I do the inserts inside a while loop and it would be nice if there is a way I can have it spit out the row at which the stored procedure is failing. The query and the loop is as such:
WHILE #rownum > 1
BEGIN
INSERT INTO dbo.bestsellers (id, name, datastring, country)
VALUES (#id, #name, #datastring, #country)
END
Is there a way to have it spit it out the #id, #name, #datastring, #country data at which it is failing due to bad data?

Answer 1

You can use a TRY CATCH structure, and in the CATCH block, raise a custom error message with all the values of your variables and the #rownum in it.

Answer 2

Try using Try Catch Block and also log the information in the Catch Block.
Refer this link for sample:
https://msdn.microsoft.com/en-us/library/ms175976.aspx
BEGIN TRY
{ sql_statement | statement_block }
END TRY
BEGIN CATCH
[ { sql_statement | statement_block } ]
END CATCH
[ ; ]

Answer 3

The following try catch block should work:
BEGIN TRY
WHILE #rownum > 1
BEGIN
INSERT INTO dbo.bestsellers (id, name, datastring, country)
VALUES (#id, #name, #datastring, #country)
END
END TRY
BEGIN CATCH
PRINT '================================================';
PRINT 'ERROR: #rownum=' + cast(#rownum as varchar) + ' #name=' + #name + ' #datastring=' + #datastring + ' #country=' + #country;
PRINT '================================================';
THROW
END CATCH;