sql和mysql递归查询子节点

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//SQL SqlServer:CTE函数处理递归(WITH语法)  cte可以其他名字 注意匹配(所有cte全部替换)
with cte as 
 ( 
 select a.typeid,a.superid,a.typename from ctype a where typeid=1
 union all  
 select k.typeid,k.superid,k.typename  from ctype k inner join cte c on c.typeid = k.superid 
 )select * from cte 
//MYSQL 放到命令行执行
CREATE FUNCTION `getChildDeptLst`(rootId INT)
    RETURNS varchar(1000)
    BEGIN
     DECLARE sTemp VARCHAR(1000);
     DECLARE sTempChd VARCHAR(1000);
    
    SET sTemp = '$';
    SET sTempChd =cast(rootId as CHAR);
   WHILE sTempChd is not null DO
  SET sTemp = concat(sTemp,',',sTempChd);
    SELECT group_concat(id) INTO sTempChd FROM department  where FIND_IN_SET(parentId,sTempChd)>0;
    END WHILE;
  RETURN sTemp;
END

select getChildLst(1);

select * from departmentg   where FIND_IN_SET(id, getChildDeptLst(1));
//
//查询子项父id
SELECT T2.id, T2 .name  FROM (  SELECT   @r AS _id,  (SELECT @r := parentId FROM department WHERE id = _id) AS parentId,  @l := @l + 1 AS lvl  FROM  (SELECT @r := 30, @l := 0) vars,  department h  WHERE @r <> 0) T1  JOIN department T2  ON T1._id = T2.id  ORDER BY T1.lvl DESC 

执行查询或者命令行报错
创建function时

出错信息：

ERROR 1418 (HY000): This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable)



原因：

这是我们开启了bin-log, 我们就必须指定我们的函数是否是
1 DETERMINISTIC 不确定的
2 NO SQL 没有SQl语句，当然也不会修改数据
3 READS SQL DATA 只是读取数据，当然也不会修改数据
4 MODIFIES SQL DATA 要修改数据
5 CONTAINS SQL 包含了SQL语句

其中在function里面，只有 DETERMINISTIC, NO SQL 和 READS SQL DATA 被支持。如果我们开启了 bin-log, 我们就必须为我们的function指定一个参数。



在MySQL中创建函数时出现这种错误的解决方法：
set global log_bin_trust_function_creators=TRUE;
下面部分摘自
http://hi.baidu.com/alovn/blog/item/590412157d0c0c04972b43ce.html