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Question

I have the following requirement
I have 2 tables person and percarrear
i have the common feild per_id in both tables i want to check the records based on 2 things 1 is per_id(only per_id) and other is org_id(per_id,org_d).I want the out put as follows.
My requirement as follows..
If per_id,org_id exists in both table status as 0
If per_id,Org_id exists in either table as status as 1
If both are doest exists status as 2
The sample output as follows
Per_id     org_id     status
100     null     1
200     156     0
null     null     2
give me the complete query ASAP

Answer 1

You can use CASE
with t_data as
select 100 as col1,null as col2 from dual union all
select 200, 266 from dual union all
select null,null from dual
SELECT
     col1,
     col2,
     CASE
          WHEN col1 IS NULL
          AND col2  IS NULL
          THEN 2
          WHEN
                    col1    IS NOT NULL
               AND col2 IS NULL
          OR
                    col1    IS NOT NULL
               AND col2 IS NULL
          THEN 1
          ELSE 0
     END as col_status
FROM
     t_data;
      COL1       COL2 COL_STATUS
       100                     1
       200        266          0
                               2
user11384749 wrote:give me the complete query ASAPTry to avoid using such statements in public forum. People might get irritated.