Cognos Report Studio 10.2.2 case statement sql logic - sql

Question

I am trying to get this sql logic to work and the last part is where i do not have my logic correct.
I need to bring back readmits for providers that have listed as ID_1 & ID_2. If a person has a readmit within 30 days then they get a readmit_conf_30 number even if they went to another place. I need to have the original provider numbers and the other providers in the report if they have a readmit within 30 days of of each other.
I have tried many ways and am at a loss for how to word it. Group1 is for providers that i am looking for. Group2 is for other providers. Group3 unions them together and Group4 i try to assign them Y/N whether i want them on report. That is where i need help in the case logic.
Thanks for the help.
Code:
WITH Group1 AS
(
SELECT
A.MEMBER, B.SEX, B.DOB, B.LAST_NAME, B.FIRST_NAME,
A.PROVIDER_ID, C.PROVIDER_NAME, A.CONF_NUM, A.BEG_DT, A.END_DT, A.TOS_I_4, A.DIS_STAT, A.AMT_EQV, A.AMT_PAY, A.AMT_REQ
, A.READMIT_INDEX_30, A.READMIT_30, A.READMIT_CONF_30, '04/30/2014' as DateCheck
, '341425870018' AS ID_1
, '341425870052' AS ID_2
FROM CONFINEMENTS A
LEFT JOIN MEMINFO B ON A.MEMBER = B.MEMBER
LEFT JOIN PROVINFO C ON A.PROVIDER_ID = C.PROVIDER_ID
LEFT JOIN MAP_DATE_RANGE D ON D.IA_TIME = A.IA_TIME
WHERE
A.CUST_OPL_MED IN ('A$*', 'B$*', 'N$*', 'P$*', 'D$*', ' 'Unspecified$UNK')
AND A.BEG_DT >= '05/01/2013' and A.beg_dt <'05/01/2014'
and A.PROVIDER_ID Like '341425870%'
and (A.READMIT_30 = 1 OR A.READMIT_30 = 0)
--AND A.DIS_STAT <> 20
),
GROUP2 AS (
SELECT
A.MEMBER, B.SEX, B.DOB, B.LAST_NAME, B.FIRST_NAME, A.PROVIDER_ID, C.PROVIDER_NAME
, A.CONF_NUM, A.BEG_DT, A.END_DT, A.TOS_I_4, A.DIS_STAT, A.AMT_EQV, A.AMT_PAY, A.AMT_REQ
, A.READMIT_INDEX_30, A.READMIT_30, A.READMIT_CONF_30, '04/30/2014' as DateCheck
, '341425870018' AS ID_1
, '341425870052' AS ID_2
FROM CONFINEMENTS A
LEFT JOIN MEMINFO B ON A.MEMBER = B.MEMBER
LEFT JOIN PROVINFO C ON A.PROVIDER_ID = C.PROVIDER_ID
LEFT JOIN MAP_DATE_RANGE D ON D.IA_TIME = A.IA_TIME
WHERE
A.CUST_OPL_MED IN ('A$*', 'B$*', 'N$*', 'P$*', 'D$*', 'Unspecified$UNK')
AND A.BEG_DT >= '05/01/2013' and A.beg_dt <'05/01/2014'
--and A.PROVIDER_ID Like '341425870%'
and (A.READMIT_30 = 1 OR A.READMIT_30 = 0)
--AND A.DIS_STAT <> 20
),
GROUP3 AS (
Select *, DATEADD(dd, 30, datecheck) AS MaxdateAllowed from Group1
union
select *, DATEADD(dd, 30, datecheck) AS MaxdateAllowed from GROUP2
),
Group4 AS (
select *
, case when PROVIDER_ID <> ID_1 and readmit_conf_30 is not null THEN 'Y'
when PROVIDER_ID <> ID_2 and readmit_conf_30 is not null THEN 'Y'
when PROVIDER_ID = ID_1 and readmit_conf_30 is not null THEN 'Y'
when PROVIDER_ID = ID_2 and readmit_conf_30 is not null THEN 'Y'
when PROVIDER_ID = ID_1 THEN 'Y'
when PROVIDER_ID = ID_2 THEN 'Y'
when PROVIDER_ID <> ID_1 THEN 'N'
when PROVIDER_ID <> ID_2 THEN 'N'
ELSE 'B'
END AS GoodRecord
FROM Group3
where maxdateallowed > beg_dt and READMIT_INDEX_30 = 1
--and (READMIT_30 = 1 OR READMIT_30 = 0)
)
SELECT * FROM Group4
WHERE GoodRecord = 'Y'
order by conf_num

Answer 1

I figured it out.
SQL Code Below :-
WITH Group1 AS (
SELECT A.MEMBER, B.SEX, B.DOB, B.LAST_NAME, B.FIRST_NAME, A.PROVIDER_ID, C.PROVIDER_NAME
, A.CONF_NUM, A.BEG_DT, A.END_DT, A.TOS_I_4, A.DIS_STAT, A.AMT_EQV, A.AMT_PAY, A.AMT_REQ
, A.READMIT_INDEX_30, A.READMIT_30, A.READMIT_CONF_30
FROM CONFINEMENTS A
LEFT JOIN MEMINFO B ON A.MEMBER = B.MEMBER
LEFT JOIN PROVINFO C ON A.PROVIDER_ID = C.PROVIDER_ID
LEFT JOIN MAP_DATE_RANGE D ON D.IA_TIME = A.IA_TIME
WHERE A.CUST_OPL_MED IN ('A$*', 'B$*', 'N$*', 'P$*', 'D$*', 'Unspecified$UNK')
AND A.BEG_DT >= '05/01/2013' and A.beg_dt <'05/01/2014'
and A.PROVIDER_ID Like '341425870%'
and (A.READMIT_30 = 1 OR A.READMIT_30 = 0)
),
GROUP2 AS (
SELECT AA.MEMBER, AA.READMIT_CONF_30
FROM Group1 AA
WHERE AA.READMIT_CONF_30 > 0
),
Group3 AS (
Select AA.MEMBER, A.READMIT_CONF_30, A.CONF_NUM
,B.SEX, B.DOB, B.LAST_NAME, B.FIRST_NAME, A.PROVIDER_ID, C.PROVIDER_NAME
, A.BEG_DT, A.END_DT, A.TOS_I_4, A.DIS_STAT, A.AMT_EQV, A.AMT_PAY, A.AMT_REQ
, A.READMIT_30, A.READMIT_INDEX_30
FROM GROUP2 AA
LEFT JOIN CONFINEMENTS A ON A.MEMBER = AA.MEMBER AND AA.READMIT_CONF_30 = A.CONF_NUM
LEFT JOIN MEMINFO B ON A.MEMBER = B.MEMBER
LEFT JOIN PROVINFO C ON A.PROVIDER_ID = C.PROVIDER_ID
LEFT JOIN MAP_DATE_RANGE D ON D.IA_TIME = A.IA_TIME
WHERE A.CUST_OPL_MED IN ('A$*', 'B$*', 'N$*', 'P$*', 'D$*', 'Unspecified$UNK')
and (A.READMIT_30 = 1 OR A.READMIT_30 = 0)
)
select
MEMBER, READMIT_CONF_30
,SEX, DOB, LAST_NAME, FIRST_NAME, PROVIDER_ID, PROVIDER_NAME
, CONF_NUM, BEG_DT, END_DT, TOS_I_4, DIS_STAT, AMT_EQV, AMT_PAY, AMT_REQ
, READMIT_30, READMIT_INDEX_30
from group1
union
select
MEMBER, READMIT_CONF_30
,SEX, DOB, LAST_NAME, FIRST_NAME, PROVIDER_ID, PROVIDER_NAME
, CONF_NUM, BEG_DT, END_DT, TOS_I_4, DIS_STAT, AMT_EQV, AMT_PAY, AMT_REQ
, READMIT_30, READMIT_INDEX_30
from Group3
order by conf_num