这个错在哪里 请教

这个错在哪里 请问
select
k.patient_id,k.visit_id,k.treat_result
l.patient_id,l.visit_id,l.dept_discharge_from,l.inp_no,l.doctor_in_charge,l.attending_doctor
m.patient_id,m.visit_id
n.dept_code,n.patient_id,n.visit_id
o.dept_code
from
(select distinct c.*
 from (select b.patient_id,b.visit_id,b.TREAT_RESULT from diagnosis a join diagnosis b on (a.patient_id=b.patient_id and a.visit_id=b.visit_id)
  where a.TREAT_RESULT='死亡')c)k
left join pat_visit l on (k.patient_id=l.patient_id and k.visit_d=l.visit_id)
left join pat_master_index m on (k.patient_id=m.patient_id and k.visit_id=m.visit_id)

left join mr_on_line n on (k.patient_id=n.patient_id and k.visit_d=n.visit_id)


[解决办法]

SQL code

--帮你整理了下代码  试试select  k.patient_id ,        k.visit_id ,        k.treat_result ,        l.patient_id ,        l.visit_id ,        l.dept_discharge_from ,        l.inp_no ,        l.doctor_in_charge ,        l.attending_doctor ,        m.patient_id ,        m.visit_id ,        n.dept_code ,        n.patient_id ,        n.visit_id ,        o.dept_codefrom    ( select distinct                    c.*          from      ( select    b.patient_id ,                                b.visit_id ,                                b.TREAT_RESULT                      from      diagnosis a                                inner join diagnosis b on ( a.patient_id = b.patient_id                                                            and a.visit_id = b.visit_id                                                          )                      where     a.TREAT_RESULT = '死亡'                    ) c        ) k        left join pat_visit l on ( k.patient_id = l.patient_id                                   and k.visit_d = l.visit_id                                 )        left join pat_master_index m on ( k.patient_id = m.patient_id                                          and k.visit_id = m.visit_id                                        )        left join mr_on_line n on ( k.patient_id = n.patient_id                                    and k.visit_d = n.visit_id                                  )
[解决办法]
少加了几个逗号


SQL code
SELECT  k.patient_id, k.visit_id, k.treat_result, l.patient_id, l.visit_id, l.dept_discharge_from, l.inp_no, l.doctor_in_charge, l.attending_doctor,        m.patient_id, m.visit_id, n.dept_code, n.patient_id, n.visit_id, o.dept_codeFROM    (          SELECT DISTINCT                  c.*          FROM    (                    SELECT  b.patient_id ,                            b.visit_id ,                            b.TREAT_RESULT                    FROM    diagnosis a                    JOIN    diagnosis b                    ON      (                              a.patient_id = b.patient_id                              AND a.visit_id = b.visit_id                            )                    WHERE   a.TREAT_RESULT = '死亡'                  ) c        ) kLEFT JOIN pat_visit lON      (          k.patient_id = l.patient_id          AND k.visit_d = l.visit_id        )LEFT JOIN pat_master_index mON      (          k.patient_id = m.patient_id          AND k.visit_id = m.visit_id        )LEFT JOIN mr_on_line nON      (          k.patient_id = n.patient_id          AND k.visit_d = n.visit_id        )
[解决办法]
看到都脑袋痛
[解决办法]
别名表 k可改改，不需要再嵌套
SQL code
select    k.patient_id,k.visit_id,k.treat_result,    l.patient_id,l.visit_id,l.dept_discharge_from,l.inp_no,l.doctor_in_charge,l.attending_doctor,    m.patient_id,m.visit_id,    n.dept_code,n.patient_id,n.visit_id,    o.dept_codefrom(select DISTINCT        b.patient_id,b.visit_id,b.TREAT_RESULT from diagnosis a join diagnosis b on a.patient_id=b.patient_id and a.visit_id=b.visit_id    where a.TREAT_RESULT='死亡' )kleft join pat_visit l on k.patient_id=l.patient_id and k.visit_d=l.visit_idleft join pat_master_index m on k.patient_id=m.patient_id and k.visit_id=m.visit_idleft join mr_on_line n on k.patient_id=n.patient_id and k.visit_d=n.visit_id