解决为'MM_CURSOR' 的游标已存在问题

今天写了个存储过程，使用了两个游标,在数据库里实现嵌套多层循环操作！
可是，老是执行存储过程，总是出现名为'MM_CURSOR' 的游标已存在。
一般出现这样的问题是：
1：游标没有    --关闭 释放
如：

	--关闭游标
	      CLOSE MM_CURSOR
         --释放游标
	     DEALLOCATE MM_CURSOR

2：游标已存在同名情况，此时就需要在定义游标时申明一个局部的游标
如：

	/*检索已经配置好的新村镇的所有乡级部门*/
    ---申明游标
	DECLARE deptCursor CURSOR 
    local FOR 
    SELECT  deptname, deptsimplename,distid, deptuncode,deptqueryno,ifreport,deptsort,enable,deptfloor,deptcharacter,caseSMSFlag,deptType
			 
    FROM t_department 
    where  PARENTID=250 and deptType='2'

其实我的情况都不是这样，只是在使用嵌套多层循环操作时把两个游标全部放在存储过程末后

	--关闭游标
	      CLOSE MM_CURSOR
         --释放游标
	     DEALLOCATE MM_CURSOR
    --关闭游标--释放游标
	CLOSE deptCursor
    --释放游标
	DEALLOCATE deptCursor

没有及时关闭导致问题出现！
正确代码如下

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
---drop  PROCEDURE copyDept

ALTER PROCEDURE [dbo].[copyDept]
    as
	declare @deptCode varchar(20)
	declare @deptname varchar(10)
	declare @deptsimplename varchar(100)
	declare @distid bigint
	declare @deptuncode varchar(100)
	declare @deptqueryno varchar(100)
	declare @ifreport varchar(4)
	declare @deptsort int
	declare @enable varchar(6)
	declare @deptfloor smallint
	declare @deptcharacter varchar(50)
	declare @caseSMSFlag varchar(4)
	declare @deptType varchar(1)
	declare @DeNo bigint
    set nocount on
    begin
	set  @deptcode = '2000000'
	/*检索已经配置好的新村镇的所有乡级部门*/
    ---申明游标
	DECLARE deptCursor CURSOR 
    local FOR 
    SELECT  deptname, deptsimplename,distid, deptuncode,deptqueryno,ifreport,deptsort,enable,deptfloor,deptcharacter,caseSMSFlag,deptType
			 
    FROM t_department 
    where  PARENTID=250 and deptType='2'
	---打开游标
	OPEN deptCursor
	--循环取出游标	
	FETCH NEXT FROM deptCursor INTO @deptname,@deptsimplename,@distid,@deptuncode,@deptqueryno,@ifreport,@deptsort,@enable,@deptfloor,@deptcharacter,@caseSMSFlag,@deptType   
	while (@@FETCH_STATUS = 0)
		begin
			/*检索乡镇行政部门:如赵集镇，龙王乡...*/
			---申明游标
			Declare MM_CURSOR CURSOR
	        local  FOR
			Select DEPTID from t_department where  ENABLE= '启用' and DISTID = 1 and deptType=0 and deptid !=250---demo,except 250 -- and PARENTID =288--and deptid not in (243,244)--and is_convenience=@tjType jc_dreaming
			Order by DEPTCODE /**ONLY VALID DEPARTMENT */
			-- 打开游标
			open MM_CURSOR
			--循环取出游标	
			FETCH NEXT FROM MM_CURSOR  INTO @DeNo
			while (@@FETCH_STATUS = 0)				
				BEGIN
                 set @deptcode = convert(varchar(20),cast(@deptcode as int)+1)
				print(@deptcode)
                 INSERT INTO T_DEPARTMENT (deptcode, deptname, deptsimplename,distid, deptuncode,deptqueryno,ifreport,deptsort,enable,deptfloor,PARENTID,deptcharacter,caseSMSFlag,deptType)
	                                VALUES (@deptcode,@deptname,@deptsimplename,@distid,@deptuncode,@deptqueryno,@ifreport,@deptsort,@enable,@deptfloor,@DeNo,@deptcharacter,@caseSMSFlag,@deptType)
				FETCH NEXT FROM MM_CURSOR INTO @DeNo
				END
			--关闭游标
	      CLOSE MM_CURSOR
         --释放游标
	     DEALLOCATE MM_CURSOR
		FETCH NEXT FROM deptCursor INTO @deptname,@deptsimplename,@distid,@deptuncode,@deptqueryno,@ifreport,@deptsort,@enable,@deptfloor,@deptcharacter,@caseSMSFlag,@deptType   
										--@deptname,@deptsimplename,@distid,@deptuncode,@deptqueryno,@ifreport,@deptsort,@enable,@deptfloor,@deptcharacter,@caseSMSFlag,@deptType
		end
		
    end
 
    --关闭游标
	CLOSE deptCursor
    --释放游标
	DEALLOCATE deptCursor

此外，在刚开始调用存储过程还遇到一个问题:程序处于正在查询状态，近一个小时，我想，数据还没那么复杂，可能出现死循环或某个游标没有移动...
可是看了代码，没有出现这样的情况，
经同事指点：

---申明游标
			Declare MM_CURSOR CURSOR
	        local  FOR
			Select DEPTID from t_department where  ENABLE= '启用' and DISTID = 1 and deptType=0 and deptid !=250---demo,except 250 -- and PARENTID =288--and deptid not in (243,244)--and is_convenience=@tjType jc_dreaming
			Order by DEPTCODE /**ONLY VALID DEPARTMENT */
			-- 打开游标
			open MM_CURSOR
			--循环取出游标	
			FETCH NEXT FROM MM_CURSOR  INTO @DeNo
			while (@@FETCH_STATUS = 0)	
                set @deptcode = convert(varchar(20),cast(@deptcode as int)+1)	//把此行代码移至begin代码内即可		
				BEGIN
               
				print(@deptcode)
                 INSERT INTO T_DEPARTMENT (deptcode, deptname, deptsimplename,distid, deptuncode,deptqueryno,ifreport,deptsort,enable,deptfloor,PARENTID,deptcharacter,caseSMSFlag,deptType)
	                                VALUES (@deptcode,@deptname,@deptsimplename,@distid,@deptuncode,@deptqueryno,@ifreport,@deptsort,@enable,@deptfloor,@DeNo,@deptcharacter,@caseSMSFlag,@deptType)
				FETCH NEXT FROM MM_CURSOR INTO @DeNo
				END
			--关闭游标
	      CLOSE MM_CURSOR
         --释放游标
	     DEALLOCATE MM_CURSOR