解决SQL Server的cannot resolve the collation conflict问题

cannot resolve the collation conflict between "chinese_prc_ci_as" and "sql_latin1_general_cp1_ci_as" in the equal to operation

是一个字段的的collation设置为了sql_latin1_general_cp1_ci_as，执行下面的SQL，改为database_default即可：

ALTER TABLE blog_Content ALTER COLUMN SourceUrl nvarchar(200) COLLATE database_default NULL