Consider the following table which has an INTERVAL YEAR TO MONTH column:
CREATE TABLE TimeInfo (YrToMon INTERVAL YEAR TO MONTH);
If you insert data into the column using the following parameterized request, and you pass an INTERVAL YEAR or INTERVAL MONTH value to the request, SQL Engine implicitly converts the value to an INTERVAL YEAR TO MONTH value before inserting the value.
INSERT INTO TimeInfo VALUES (?);