Variables in the query are marked by '?' or '$'. The marker is not part
of the variable name, so $var and ?var represent the exact same
variable.
Also fixed a style issue with the error message. According to the
documentation for the error function the convention is that error
messages start with a capital letter but do not end with a period.
Variables in the query are marked by '?' or '$'. The marker is not part of the variable name, so
$varand?varrepresent the exact same variable.Also fixed a style issue with the error message. According to the documentation for the error function the convention is that error messages start with a capital letter but do not end with a period.