Hi,
please check the documentation of the SQL call atom itself by clicking the following symbol:
In general there are three options to maintain a SQL statement:
- Directly enter the SQL Statement (which you're using at the moment)
- Entering an Atom identifier (my preferred option)
- Entering a XPath Statement
If you use option 2. or 3. you need to use a predecessor XFORM atom to prepare the SQL statement.
In this xsl document you can also use xslt variables, parameters, ...
Best regards
Bastian