SQL_IsFieldNull
Returns whether a field's data in the current row of a result set is
NULL or not. NULL is an SQL type which means "no data."
native bool SQL_IsFieldNull(Handle query, int field)Parameters
A query (or statement) Handle.
int field
The field index (starting from 0).
Return Value
bool True if data is NULL, false otherwise.Error
Invalid query Handle or field index, or no
current result set.