sql - 获取 SQL Server 游标中的多个值

Question

我有一个游标，其中包含它带回的行中的几列，我想立即处理这些列。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一次将游标中的特定列分配给标量值，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

我想知道是否可以执行如下操作:

    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

我们始终感谢您的帮助。

Answer 1

这应该有效:

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;