oracle full outer join problem

Posted on 2007-11-18
Last Modified: 2013-12-19
SQL> select * from test1;

STATE     ID            NAME                 PARAM         count1
---------- ---------- -------------------- ---------- ----------
AK         1234       testname1            bo                 1
AK         1235       testname2            bo                 1
MA         1234       testname1            ao                 1
AK         1234       testname1            ao                 2
MA         1235       testname5            ao                 3
testbo  is view created from table test1 for param bo

SQL> select * from testbo;


STATE      ID          NAME                 PARAM          count1

---------- ---------- -------------------- ---------- ----------

AK         1234       testname1            bo                 1

AK         1235       testname2            bo                 1



SQL> select * from testao; this is view for param ao


STATE      ID     NAME                 PARAM              count1

---------- ---------- -------------------- ---------- ----------

MA         1234       testname1            ao                 1

AK         1234       testname1            ao                 2

MA         1235       testname5            ao                 3




SQL> select a.state,,,a.count1 as bo,b.count1 as ao from

testbo a full outer join testao b on a.state =b.state and and =


STATE      ID            NAME                        bo       ao

---------- ---------- -------------------- ---------- ----------

AK         1234       testname1                     1          2

AK         1235       testname2                     1





How to display state ,ID,name values for ao as it was displaying only count1.


Best Regards,

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Question by:pk143143
1 Comment
LVL 142

Accepted Solution

Guy Hengel [angelIII / a3] earned 125 total points
Comment Utility
you have to coalesce the fields:

SQL> select coalesce(a.state, b.state) state
  ,coalesce(, b,id) id
 ,coalesce(, name
,a.count1 as bo
,b.count1 as ao 
from testbo a 
full outer join testao b 
   on a.state =b.state 
  and =

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