在SQL Server游标中获取多个值

Question

我有一个游标,其中包含我想要一次处理的行中的几列.我注意到我看到的关于如何使用游标的大多数示例都显示它们将光标中的特定列一次分配给一个标量值,然后移动到下一行,

例如

OPEN db_cursor  
FETCH NEXT FROM db_cursor INTO @name  

WHILE @@FETCH_STATUS = 0  
BEGIN  
       --Do Stuff with @name scalar value, then get next row from cursor

       FETCH NEXT FROM db_cursor INTO @name  
END

我想知道的是,是否可以执行以下操作:

    OPEN db_cursor  
    FETCH NEXT FROM db_cursor; 

    WHILE @@FETCH_STATUS = 0  
    BEGIN  
           SET @myName = db_cursor.name;
           SET @myAge = db_cursor.age;
           SET @myFavoriteColor = db_cursor.favoriteColor;
           --Do stuff with scalar values

           FETCH NEXT FROM db_cursor; 
    END

总是感谢帮助.

Answer 1

这应该工作:

DECLARE db_cursor CURSOR FOR SELECT name, age, color FROM table; 
DECLARE @myName VARCHAR(256);
DECLARE @myAge INT;
DECLARE @myFavoriteColor VARCHAR(40);
OPEN db_cursor;
FETCH NEXT FROM db_cursor INTO @myName, @myAge, @myFavoriteColor;
WHILE @@FETCH_STATUS = 0  
BEGIN  

       --Do stuff with scalar values

       FETCH NEXT FROM db_cursor INTO @myName, @myAge, @myFavoriteColor;
END;
CLOSE db_cursor;
DEALLOCATE db_cursor;