解决为'*********' 的游标已存在问题

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：

Sql代码

--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：

Sql代码

/*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

Sql代码

--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

Sql代码

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：

Sql代码

---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