Denodo does not publish a concise list of what permissions denodo needs in a source database. So, I thought I would document what is required for a SQL Server data source for denodo.
Source database Dendo Access Permissions
Assuming there is no need to write back to the source DB, the data source connection permissions in a SQL Server the denodo source database should be:
- Read And View Definitions access
- Create tables (for data movement optimization), and
- Access to getSchemas()
Why Create Table, Not Just Temporary Table?
The reason by denodo needs create tables permissions, rather than just create temporary tables permissions, is that temporary tables are only valid for the same connection, and Data Movement makes use of multiple connections, so we can not rely on the temporary table mechanism.
What if you need to Write back capabilities to data sources connection?
If you had a use case where users would need to write back to the SQL Server database via Denodo, the Insert/Update permissions would need to be added to the list above.