Jaybird 2.1 JDBC driver Java Programmer's Manual - Firebird

CREATE PROCEDURE factorial(
max_value INTEGER
) RETURNS (
row_num INTEGER,
factorial INTEGER
) AS
BEGIN
END
DECLARE VARIABLE temp INTEGER;
DECLARE VARIABLE counter INTEGER;
counter = 0;
temp = 1;
WHILE (counter SELECT * FROM factorial(5);
ROW_NUM FACTORIAL
============ ============
0 1
1 1
2 2
3 6
4 24
5 120
Illustration 4.10.: Output of the modified procedure.
Using the CallableStatement
Let's see how the procedures defined above can be accessed from Java.
First, we can execute this procedure showed on Illustration 4.7 using the
EXECUTE PROCEDURE statement and PreparedStatement, however this
approach requires some more code for result set handling.
Chapter 4. Executing statements 46