I need some help, plz read this

Question

i am using Java API for SNMP called SNMP4j, and using netbeans as IDE for JAVA and my project is abt getting the MPLS VPN information from cisco routers MIB called PPVPN-MPLS-VPN-MIB, i need to get the information in all of the eight tables in this mib using SNMP API as i already said, im interested to get the entire tables, whereas i can get only the first row of each table.
if someone knows that how can i access the whole table or how would i know that how many number of rows are there in each table then i would be able to do what is intended.
my problem is related to SNMP objects instance identification,
please please, reply as soon as possible, thanking in anticipation.

Answer 1

Hi,
Welcome to the forum!
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Re-arranging your one-column output into three columns is called pivoting.
Here's one way to do it:
WITH     got_rnum
AS
     SELECT     ename
     ,     LENGTH (ename)     AS len
     ,     ROW_NUMBER () OVER ( PARTITION BY  LENGTH (ename)
                               ORDER BY          ename     -- optional
                       )  AS rnum
     FROM     scott.emp
SELECT       MAX (CASE WHEN len = 4 THEN ename END)     AS length_4
,       MAX (CASE WHEN len = 5 THEN ename END)     AS length_5
,       MAX (CASE WHEN len = 6 THEN ename END)     AS length_6
FROM       got_rnum
GROUP BY  rnum
ORDER BY  rnum;The only place where I had to know what the lengths were was when I wrote three lines for the SELECT clause (for lengths 4, 5, and 6).
If you the query to do this, then you have to use dynamic SQL, to figure out how many different lengts there are, and what they are, and to write an appropriate SELECT clause for you.
As dynamic SQL gioes, this is pretty easy. You can do it in SQL*Plus or PL/SQL.