Want to remove Duplicate data...

Question

Hi,
I have three diff queries which product a similar output.
1) SQL Statement return
Product Amount1
A 100
B 100
C 100
2) SQL Statement return
Product Amount2
D 200
B 200
E 200
3) SQL Statement return
Product Amount3
A 300
F 300
D 300
Now i want out in the following manner:
Product Amount1 Amount2 Amount3
A 100 300
B 100 200
C 100
D 200 300
E 200
F 300
G
I cannot join these table (SQL) as 1 might not have matching records in 2 & 3 respectively.
Kindly help
Regards,
RSD

Answer 1

Hi,
I cannot join these table (SQL) as 1 might not have matching records in 2 & 3 respectively.Although the simpler solution have been provided in above post. Just thought to show you an example by using JOIINS.
SQL> ed
Wrote file afiedt.buf
  1  WITH T1 as (SELECT 'A' prd, 100 amt FROM DUAL UNION ALL SELECT 'B', 100 FROM DUAL UNION ALL SELECT 'C', 100 FROM DUAL),
  2  T2 as (SELECT 'D' prd, 200 amt FROM DUAL UNION ALL SELECT 'B', 200 FROM DUAL UNION ALL SELECT 'E', 200 FROM DUAL),
  3  T3 as (SELECT 'A' prd, 300 amt FROM DUAL UNION ALL SELECT 'F', 300 FROM DUAL UNION ALL SELECT 'D', 200 FROM DUAL)
  4  SELECT prd,sum(amt1),sum(amt2),sum(amt3) FROM (
  5  SELECT NVL(NVL(t1.prd,t2.prd),t3.prd) prd,t1.amt amt1,t2.amt amt2,t3.amt amt3
  6  FROM T1
  7  FULL OUTER JOIN t2 on (t1.prd = t2.prd)
  8  FULL OUTER JOIN t3 on (t2.prd = t3.prd and t1.prd=t3.prd)
  9  ) GROUP BY prd
10*  ORDER bY prd
SQL> /
P  SUM(AMT1)  SUM(AMT2)  SUM(AMT3)
A        100                   300
B        100        200
C        100
D                   200        200
E                   200
F                              300
6 rows selected.
SQL>Cheers,
Avinash