>>
>>invalid expression ?
>
>Yes.
>
>>Where is the comma ?
>
>You don't need comma to create an invalid expression.
>
>>If you are sure of what you say, you make an example.
>
>

SELECT 1 + ('myName') FROM TT

Have I written a + ?

>
>In genera, it's better to avoid Name expressions in SQL command, because they are not recognized in most places, and use macro substitution instead.