RequestError: Incorrect syntax near '.'

[QGIO]

I have created the following flow:
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in which I send by the button 'Carica' a number to the function in order to select a specific raw of a SQL database table.
On the MSSQL node I get the following error:
RequestError: Incorrect syntax near '.'

Could you help me to found the problem?

[knolleary]

The best way for us to help you is if you add a Debug node to the output of the Function node so we can all see exactly what SQL you are sending to the MSSQL node. That's the only way we can help you spot what syntax error you have.

[QGIO]

I think I forgot FROM