Sql 我现在明白了，谢谢你！ Client ID Assessment Type Start End P1 1 Initial 01/01/2012 05/01/2012 Client I

我现在明白了，谢谢你！

Client    ID    Assessment Type   Start       End
P1        1     Initial           01/01/2012  05/01/2012

Client ID    Assessment Type   Start       End
P1     2     Full              12/01/2012 

ID     Worker     Team
1      Bob        Team1
2      Lyn        Team2

Client  ID    Initial Start    Initial End    Initial Worker   Full Start   Full End   
P1      1     01/01/2012       05/01/2012     Bob              12/01/2012

Select
*
From(
Select
I.ASM_SUBJECT_ID as PNo,
I.ASM_ID As IAID,
I.ASM_QSA_ID as IAType,
I.ASM_START_DATE as IAStart,
I.ASM_END_DATE as IAEnd,
nvl(olm_bo.get_ref_desc(I.ASM_OUTCOME,'ASM_OUTCOME'),'') as IAOutcome,
C.ASM_ID as CAID,
C.ASM_QSA_ID as CAType,
C.ASM_START_DATE as CAStart,
C.ASM_END_DATE as CAEnd,
nvl(olm_bo.get_ref_desc(C.ASM_OUTCOME,'ASM_OUTCOME'),'') as CAOutcome,
ROUND(C.ASM_START_DATE -I.ASM_START_DATE,0) as "Likely",
row_number() over(PARTITION BY  I.ASM_ID                   
ORDER BY 
abs(I.ASM_START_DATE -  C.ASM_START_DATE))as "Row Number"
FROM
O_ASSESSMENTS I
left join O_ASSESSMENTS C
on I.ASM_SUBJECT_ID = C.ASM_SUBJECT_ID
and C.ASM_QSA_ID  IN ('AA523','AA1326') and
ROUND(C.ASM_START_DATE - I.ASM_START_DATE,0) >= -2
AND
ROUND(C.ASM_START_DATE -  I.ASM_START_DATE,0) <= 25
and C.ASM_OUTCOME <>'ABANDON'
Where I.ASM_QSA_ID  IN ('AA501','AA1323')
AND I.ASM_OUTCOME <> 'ABANDON'
AND
I.ASM_END_DATE >= '01-04-2011') WHERE "Row Number" = 1 

select i.client,
       i.id     initial_id,
       i.start  initial_start,
       i.end    initial_end,
       w.worker initial_worker,
       f.id     full_id,
       f.start  full_start,
       f.end    full_end
from assessments i
join workers w on i.id = w.id
left join assessments f 
       on i.client = f.client and 
          f.assessment_type = 'Full' and
          f.start between i.end and i.end + X 
/* replace X with appropriate number of days */
where i.assessment_type = 'Initial'