oracle语句使用经验

--根据不同字典值去加‘前缀’
方法一
select CASE
WHEN dict_code = ‘YYPZ‘ THEN ‘0‘ || CODE
ELSE ‘1‘ || CODE end as code,
name as name
from MSTB_BDS_DATA
where (dict_code = ‘VOICEOTHERTYPE‘ or dict_code = ‘YYPZ‘)
and record_state = ‘1‘
方法二
(select ‘0‘||CODE code,NAME from MSTB_BDS_DATA d where d.dict_code=‘YYPZ‘ and record_state = ‘1‘ ) union all (select ‘1‘||CODE code,NAME from MSTB_BDS_DATA d where d.dict_code=‘VOICEOTHERTYPE‘ and record_state = ‘1‘)

oracle语句使用经验

原文：http://blog.51cto.com/hebinteng/2107570