MySQL中的in子查询条件为空_mysql not in子查询返回结果为空
今天写sql语句的时候,希望通过not in子查询来限制查询结果,实际SQL语句如下:select ID as id, TYPE_CODE as typeCode , TYPE_NAME as typeName ,PARENT_ID as parentsId , STYLE as style , LEVELS as levelsfrom type_codewhere PARENT_ID = '3...