Max & min value date wise

Question

I have Table test with columns
name     value     values_date
A     40     01/08/2010
A     10     02/08/2010
A     10     03/08/2010
A     10     04/08/2010
A     20     03/08/2010
A     50     02/08/2010
A     50     03/08/2010
A     50     04/08/2010
B     100     01/08/2010
B     10     02/08/2010
B     20     03/08/2010
B     10     01/08/2010
B     100     11/08/2010
B     100     12/08/2010
B     100     13/08/2010
insert into test values('A','40','1/8/2010');
insert into test values('A','10','2/8/2010');
insert into test values('A','10','3/8/2010');
insert into test values('A','10','4/8/2010');
insert into test values('A','20','3/8/2010');
insert into test values('A','50','2/8/2010');
insert into test values('A','50','3/8/2010');
insert into test values('A','50','4/8/2010');
insert into test values('B','100','1/8/2010');
insert into test values('B','10','2/8/2010');
insert into test values('B','20','3/8/2010');
insert into test values('B','10','1/8/2010');
insert into test values('B','100','11/8/2010');
insert into test values('B','100','12/8/2010');
insert into test values('B','100','13/08/2010');
I want OP like
name     min_value     min_value_date     max_value     max_value_date
A     10          02/08/2010     50          04/08/2010     
B     10          01/08/2010     100          13/08/2010

Answer 1

Santosh.Minupurey wrote:
Hi.....
try dis,
SQL> SELECT A.NAME,A.VALUE,MIN(A.V_DATE),B.VALUE,MAX(B.V_DATE)FROM TEST A,TEST B WHERE
2  (A.NAME,A.VALUE) IN (SELECT NAME,MIN(VALUE) FROM TEST GROUP BY NAME) AND
3  (A.NAME,B.VALUE) IN (SELECT NAME,MAX(VALUE) FROM TEST GROUP BY NAME) GROUP BY A.NAME,A.VALUE,B.VALUE;
NAME            VALUE MIN(A.V_DATE)        VALUE MAX(B.V_DATE)
A                  10 2/8/2010                50 4/8/2010
B                  10 1/8/2010               100 13/08/2010Regards,
Santosh.MinupureyHere is another way using the FIRST and LAST functions
SQL>select name,
  2  min(value) min_value,
  3  min(v_date) keep (dense_rank first order by value) min_value_date,
  4  max(value) max_value,
  5  max(v_date) keep (dense_rank last order by value) max_value_date
  6  from test
  7  group by name;
N        MIN_VALUE MIN_VALUE_D        MAX_VALUE MAX_VALUE_D
A               10 02-AUG-2010               50 04-AUG-2010
B               10 01-AUG-2010              100 13-AUG-2010For more info, check http://download.oracle.com/docs/cd/B19306_01/server.102/b14223/analysis.htm#i1007059