ORA-01719: OR 或 IN 操作数中不允许外部联接运算符 (+)

ORA-01719: OR 或 IN 操作数中不允许外部连接运算符 (+)
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ORA-01719: OR 或 IN 操作数中不允许外部连接运算符 (+):

sql语句：
select JudgeMent.Aid,JudgeMent.CaseNum,JudgeMent.larq,JudgeMent.slqx,JudgeMent.barq,JudgeMent.fj,JudgeMent.isyqsl,JudgeMent.yqyy,JudgeMent.Xgsj,JudgeMent.Ispt,t_status.meaning from JudgeMent,t_status where 1=1 and JudgeMent.Status=t_status.code(+) and status=9 and judgement.zsr='aaa' or judgement.dlspy='aaa' and rownum<=500 order by AID desc;

如何解决这个问题呢？
------解决方法--------------------
select *
from (
select judgement.zsr, judgement.dlspy, JudgeMent.Aid,JudgeMent.CaseNum,JudgeMent.larq,JudgeMent.slqx,JudgeMent.barq,JudgeMent.fj,JudgeMent.isyqsl,JudgeMent.yqyy,JudgeMent.Xgsj,JudgeMent.Ispt,t_status.meaning from JudgeMent,t_status where 1=1 and JudgeMent.Status=t_status.code(+) and status=9
)
where zsr='aaa' or dlspy='aaa' and rownum<=500 order by AID desc;