Fetches a row of data into an array. The flags has two flag values: if the ORA_FETCHINTO_NULLS flag is set,
columns with NULL values are
set in the array; and if the
ORA_FETCHINTO_ASSOC flag is set, an associative
array is created.
Returns the number of columns fetched.
See also ora_parse(),ora_exec(),
ora_fetch(), and ora_do().