Oracle C++ Call Interface Programmer's Guide

IntervalYM Class
IntervalYM Class
IntervalYM supports the SQL92 datatype Year-Month Interval.
Leading field precision will be determined by number of decimal digits on input.
IntervalYM(const Environment *env,
int year = 0,
int month=0);
year
Valid values are -10^9 through 10^9
month
Valid values are -11 through 11
Constructs a null IntervalYM object. A null intervalYM can be initialized by
assignment or calling fromText method. Methods that can be called on null
intervalYM objects are setNull and isNull.
IntervalYM();
Constructs an IntervalYM object from src.
IntervalYM(const IntervalYM &src);
The following code example demonstrates that the default constructor creates a null
value, and how you can assign a non null value to a year-month interval and then
perform operations on it:
Environment *env = Environment::createEnvironment();
//create a null year-month interval
IntervalYM ym
if(ym.isnull())
cout