Tag : lambda


Python use case – Convert rows into comma separated values in a column – SQL Server 2017

In this post, we are going to learn how we can leverage python in SQL server to generate comma separated values.

If we want to combine all values of a single column it is fairly easy as we can use COALESCE function to do that. Here is a reference to the already existing post. But have you ever thought what would happen if we needed a comma separated value in a column along with other columns? In that scenario, this approach would not work.

We can get comma separated values in a column along with other columns using FOR XML PATH  query wrapped inside a sub-query, but there also we would need to take care of HTML encoded characters like < and >.

Now, with python’s integration with SQL Server 2017, it can be achieved very easily and efficiently as we do not have to rely on subqueries and … More