将 SQL Server 2008 游标变量转换为 SQL Azure

Question

我正在尝试将 NetSqlAzMan 的数据库移植到 Azure。我遇到了一些存储过程的问题。

SET @member_cur = CURSOR STATIC FORWARD_ONLY FOR SELECT * FROM @RESULT
OPEN @member_cur

结果出现错误消息：

消息 16948，级别 16，状态 4
程序 netsqlazman_GetApplicationGroupSidMembers， 118路
变量“@member_cur”是 不是游标变量，但它被使用 在光标变量所在的地方 预计。

存储过程脚本是通过以 SQLAzure 格式导出空 NetSQLAzMan 数据库来创建的。在 SQL Azure 中处理游标变量有什么技巧吗？我没有看到太多这方面的文档。

如果有帮助的话，这是存储过程。请原谅啰嗦。该错误引用了存储过程的底部。

CREATE PROCEDURE [dbo].[netsqlazman_GetApplicationGroupSidMembers]
    @ISMEMBER [bit],
    @GROUPOBJECTSID [varbinary](85),
    @NETSQLAZMANMODE [bit],
    @LDAPPATH [nvarchar](4000),
    @member_cur [int] OUTPUT
WITH EXECUTE AS CALLER
AS
DECLARE @RESULT TABLE (objectSid VARBINARY(85))
DECLARE @GROUPID INT
DECLARE @GROUPTYPE TINYINT
DECLARE @LDAPQUERY nvarchar(4000)
DECLARE @sub_members_cur CURSOR
DECLARE @OBJECTSID VARBINARY(85)
SELECT @GROUPID = ApplicationGroupId, @GROUPTYPE = GroupType, @LDAPQUERY = LDapQuery FROM [netsqlazman_ApplicationGroupsTable] WHERE objectSid = @GROUPOBJECTSID
IF @GROUPTYPE = 0 -- BASIC
BEGIN
    --memo: WhereDefined can be:0 - Store; 1 - Application; 2 - LDAP; 3 - Local; 4 - Database
    -- Windows SIDs
    INSERT INTO @RESULT (objectSid) 
    SELECT objectSid 
    FROM dbo.[netsqlazman_ApplicationGroupMembersTable]
    WHERE 
    ApplicationGroupId = @GROUPID AND IsMember = @ISMEMBER AND
    ((@NETSQLAZMANMODE = 0 AND (WhereDefined = 2 OR WhereDefined = 4)) OR (@NETSQLAZMANMODE = 1 AND WhereDefined BETWEEN 2 AND 4))
    -- Store Groups Members
    DECLARE @MemberObjectSid VARBINARY(85)
    DECLARE @MemberType bit
    DECLARE @NotMemberType bit
    DECLARE nested_Store_groups_cur CURSOR LOCAL FAST_FORWARD FOR
        SELECT objectSid, IsMember FROM dbo.[netsqlazman_ApplicationGroupMembersTable] WHERE ApplicationGroupId = @GROUPID AND WhereDefined = 0

    OPEN nested_Store_groups_cur
    FETCH NEXT FROM nested_Store_groups_cur INTO @MemberObjectSid, @MemberType
    WHILE @@FETCH_STATUS = 0
    BEGIN
            -- recursive call
        IF @ISMEMBER = 1
        BEGIN
            IF @MemberType = 0 
                SET @NotMemberType = 0
            ELSE
                SET @NotMemberType = 1
        END
        ELSE
        BEGIN
            IF @MemberType = 0 
                SET @NotMemberType = 1
            ELSE
                SET @NotMemberType = 0
        END
        EXEC dbo.[netsqlazman_GetStoreGroupSidMembers] @NotMemberType, @MemberObjectSid, @NETSQLAZMANMODE, @LDAPPATH, @sub_members_cur OUTPUT
        FETCH NEXT FROM @sub_members_cur INTO @OBJECTSID
        WHILE @@FETCH_STATUS=0
        BEGIN
            INSERT INTO @RESULT VALUES (@OBJECTSID)
            FETCH NEXT FROM @sub_members_cur INTO @OBJECTSID
        END     
        CLOSE @sub_members_cur
        DEALLOCATE @sub_members_cur         

        FETCH NEXT FROM nested_Store_groups_cur INTO @MemberObjectSid, @MemberType
    END
    CLOSE nested_Store_groups_cur
    DEALLOCATE nested_Store_groups_cur

    -- Application Groups Members
    DECLARE nested_Application_groups_cur CURSOR LOCAL FAST_FORWARD FOR
        SELECT objectSid, IsMember FROM dbo.[netsqlazman_ApplicationGroupMembersTable] WHERE ApplicationGroupId = @GROUPID AND WhereDefined = 1

    OPEN nested_Application_groups_cur
    FETCH NEXT FROM nested_Application_groups_cur INTO @MemberObjectSid, @MemberType
    WHILE @@FETCH_STATUS = 0
    BEGIN
            -- recursive call
        IF @ISMEMBER = 1
        BEGIN
            IF @MemberType = 0 
                SET @NotMemberType = 0
            ELSE
                SET @NotMemberType = 1
        END
        ELSE
        BEGIN
            IF @MemberType = 0 
                SET @NotMemberType = 1
            ELSE
                SET @NotMemberType = 0
        END
        EXEC dbo.[netsqlazman_GetApplicationGroupSidMembers] @NotMemberType, @MemberObjectSid, @NETSQLAZMANMODE, @LDAPPATH, @sub_members_cur OUTPUT
        FETCH NEXT FROM @sub_members_cur INTO @OBJECTSID
        WHILE @@FETCH_STATUS=0
        BEGIN
            INSERT INTO @RESULT VALUES (@OBJECTSID)
            FETCH NEXT FROM @sub_members_cur INTO @OBJECTSID
        END     
        CLOSE @sub_members_cur
        DEALLOCATE @sub_members_cur 

        FETCH NEXT FROM nested_Application_groups_cur INTO @MemberObjectSid, @MemberType
    END
    CLOSE nested_Application_groups_cur
    DEALLOCATE nested_Application_groups_cur
    END
ELSE IF @GROUPTYPE = 1 AND @ISMEMBER = 1 -- LDAP QUERY
BEGIN
    EXEC dbo.[netsqlazman_ExecuteLDAPQuery] @LDAPPATH, @LDAPQUERY, @sub_members_cur OUTPUT
    FETCH NEXT FROM @sub_members_cur INTO @OBJECTSID
    WHILE @@FETCH_STATUS=0
    BEGIN
        INSERT INTO @RESULT (objectSid) VALUES (@OBJECTSID)
        FETCH NEXT FROM @sub_members_cur INTO @OBJECTSID
    END
    CLOSE @sub_members_cur
    DEALLOCATE @sub_members_cur
END
SET @member_cur = CURSOR STATIC FORWARD_ONLY FOR SELECT * FROM @RESULT
OPEN @member_cur
GO

Answer 1

我认为这个问题并不是与游标有关，而是与输出变量的声明有关。如果查看存储过程的开头，您会看到以下内容：

@member_cur [int] OUTPUT

其中 @member_cur 被定义为整数。然后，您尝试将其分配为具有游标的值，并且它正确地抱怨。令我惊讶的是，这是从非 Azure SQL Server 生成的。无论哪种方式，SQL Azure 似乎都不支持此功能，因此要么更改输出参数的类型，要么在不同的变量中打开游标并将 @member_cur 指定为该值。