I am not positive this is a sliding window problem, but it is my best guess. I would like to show the current rows values and the next row, on the same output record, and then advance to the next recor --, repeat.
I think the simple example below illustrates my problem. Given the data in table TEST1, I would like to write a query which gives me output similar to my example.
On a related note, is there a white paper someone which explains the usage and idiosyncrasis of Ordered Analytic Functions? I get really confused reading the docs - so many possibilities and so few brain cells.
CREATE TABLE TEST1 (
ID INT,
YR CHAR(4),
VAL CHAR(1)
) UNIQUE PRIMARY INDEX PK (ID, YR) ;
INSERT TEST1 (ID, YR, VAL) VALUES (1,'2001', 'A');
INSERT TEST1 (ID, YR, VAL) VALUES (1,'2002', 'B');
INSERT TEST1 (ID, YR, VAL) VALUES (1,'2003', 'C');
INSERT TEST1 (ID, YR, VAL) VALUES (1,'2004', 'D');
INSERT TEST1 (ID, YR, VAL) VALUES (2,'2001', 'e');
INSERT TEST1 (ID, YR, VAL) VALUES (2,'2002', 'f');
INSERT TEST1 (ID, YR, VAL) VALUES (2,'2003', 'g');
INSERT TEST1 (ID, YR, VAL) VALUES (2,'2004', 'h');
SEL * FROM test1 ORDER BY 1,2;
-- desired output of query
ID Yr VALUE Next_year Next_year_value
1 2001 A 2002 B
1 2002 B 2003 C
1 2003 C 2004 D
2 2001 e 2002 f
2 2002 f 2003 g
2 2003 g 2004 h
Thanks a lot,
John J