SQL code returns triple copies of each row

Question

I want to select from my schema and another schema, and sum(total period_activity_a). the code returns triplicate copies of each row, how can I avoid the triplicate rows. I need just one row for each row.
select a.segment3, b.descr, b.leader, sum(a.period_activity_a) from payman.snp_op_detail a,
hrman.organisation_t b
where a.segment3 = b.org_member_id and
a.segment3 between 4000 and 5999 and
a.segment2 != 6651 and
a.segment2 between 5400 and 8999 and
a.period_name in ('JAN-11', 'FEB-11', 'MAR-11', 'APR-11', 'MAY-11', 'JUN-11',
'JUL-11', 'AUG-11', 'SEP-11','OCT-11','NOV-11', 'DEC-11')
group by ROLLUP(a.segment3,b.descr, b.leader);
result
SEGMENT3     DESCR     LEADER     SUM(A.PERIOD_ACTIVITY_A)
4001     CLOSED: RF-CASSAVA MOSAIC DIS.      S.SHOLOLA     0
4001     CLOSED: RF-CASSAVA MOSAIC DIS.           0
4001               0
4005     Closed: BELG. STRAT MUSA-ESARC      S.SHOLOLA     0
4005     Closed: BELG. STRAT MUSA-ESARC           0
4005               0
4006     Closed: BELG. STRATEG MUSA KUL      S.SHOLOLA     0
4006     Closed: BELG. STRATEG MUSA KUL           0
4006               0
4007     Closed: BELG STRATEG MUSA ONNE     S.SHOLOLA     0
4007     Closed: BELG STRATEG MUSA ONNE          0
4007               0
4009     Closed: EEC-OFAR II REIMB EXPs      S.SHOLOLA     0
4009     Closed: EEC-OFAR II REIMB EXPs           0
4009               0
Edited by: OlaTunde on 19-Jan-2012 04:41

Answer 1

Hi,
OlaTunde wrote:
I want to select columns and total only not subtotal. the only thing I can think about is rollup. but rollup brings rollup for each column. how can I get total without repeating the rows?Sorry, it's unclear what you want. Whenever you have a problem, post a little sample data (CREATE TABLE and INSERT statements) and the results you want from that data. Explain how you get those results from that data.
If you can show your problem using commonly available tables (such as scott.emp) then you don't need to post any sample data; just the results and the explanation.
Always say which version of Oracle you're using.
As Johan said, GROUP BY (without ROLLUP) produces only one row for each combination of the values in the GROUP BY clause.
Analytic functions can produce the same total as aggregate functions, without changing the number of rows at all.
GROUP BY GROUPING SETS is very flexible about getting subtotals and totals in the same query.
It all depends on your data, what you want from that data, and your version. If you're willing to share what you know about those things, other people will share what they know about SQL.