63.创建一个带有输入参数和输出游标参数的存储过程。用于查询xx班级中每位学生所修课程的总学分，并按学号排序。

以下是一个示例SQL Server存储过程，用于查询xx班级中每位学生所修课程的总学分，并按学号排序。该存储过程带有输入参数`@Class`，表示班级名称，以及输出游标参数`@Cursor`，用于返回查询结果。

CREATE PROCEDURE GetTotalCreditsByStudent
    @Class NVARCHAR(50),
    @Cursor CURSOR VARYING OUTPUT
AS
BEGIN
    SET NOCOUNT ON;
    
    DECLARE @StudentID INT;
    DECLARE @TotalCredits INT;
    DECLARE @CurrentStudentID INT;
    DECLARE @CurrentTotalCredits INT;
    
    SET @Cursor = CURSOR FOR
    SELECT StudentID, SUM(Credit) AS TotalCredits
    FROM CourseTable
    WHERE Class = @Class
    GROUP BY StudentID
    ORDER BY StudentID ASC;
    
    OPEN @Cursor;
    FETCH NEXT FROM @Cursor INTO @CurrentStudentID, @CurrentTotalCredits;
    
    WHILE @@FETCH_STATUS = 0
    BEGIN
        IF @StudentID IS NULL OR @StudentID <> @CurrentStudentID
        BEGIN
            IF @StudentID IS NOT NULL
            BEGIN
                -- 输出前一个学生的总学分
                PRINT 'StudentID: ' + CAST(@StudentID AS NVARCHAR(50)) + ', TotalCredits: ' + CAST(@TotalCredits AS NVARCHAR(50));
            END
            
            -- 更新当前学生的学号和总学分
            SET @StudentID = @CurrentStudentID;
            SET @TotalCredits = @CurrentTotalCredits;
        END
        ELSE
        BEGIN
            -- 累加当前学生的总学分
            SET @TotalCredits = @TotalCredits + @CurrentTotalCredits;
        END
        
        FETCH NEXT FROM @Cursor INTO @CurrentStudentID, @CurrentTotalCredits;
    END
    
    IF @StudentID IS NOT NULL
    BEGIN
        -- 输出最后一个学生的总学分
        PRINT 'StudentID: ' + CAST(@StudentID AS NVARCHAR(50)) + ', TotalCredits: ' + CAST(@TotalCredits AS NVARCHAR(50));
    END
    
    CLOSE @Cursor;
    DEALLOCATE @Cursor;
END

当你执行此存储过程时，它将按学号从小到大输出每位学生的总学分。你可以将`@Class`参数设置为不同的班级名称来查询不同班级的结果。请注意，此存储过程仅供参考，你需要根据实际情况进行修改和优化。