Sql server中Collation conflict问题

今天在做data migration时写了一个跨数据库查询的语句：
select d.id as sgpid,'s' as sgptype, 1 as upuser, getdate() as updt, number
from [datamigr_v33].[dbo].[_upd_dts_timedef1] c, [datamigr_v4].[dbo].[addtstore]d
where storenum<>0 and c.storenum = d.strnumber
结果在运行时碰到这样一个问题，问题描述：
cannot resolve the collation conflict between "chinese_prc_ci_as" and "sql_latin1_general_cp1_ci_as" in the equal to operation.
到网上搜了一下，了解了问题产生的原因，原来是两个数据库的collation不一致导致的，datamigr_v33用的是sql_latin1_general_cp1_ci_as，而datamigr_v4用的是chinese_prc_ci_as，知道原因，解决起来就好办了。将查询语句改成如下：
select d.id as sgpid,'s' as sgptype, 1 as upuser, getdate() as updt, number
from [datamigr_v33].[dbo].[_upd_dts_timedef1] c, [datamigr_v4].[dbo].[addtstore]d
where storenum<>0 and c.storenum collate chinese_prc_ci_as = d.strnumber
问题就解决了。