[T-SQL] 游标使用方法

 

USE Northwind
GO

--第一步：声明游标
DECLARE Employee_Cursor CURSOR FOR
SELECT LastName, FirstName
  FROM Northwind.dbo.Employees
 WHERE LastName like 'B%'

--第二步：打开游标
OPEN Employee_Cursor

--第三步：FETCH游标
FETCH NEXT FROM Employee_Cursor
WHILE @@FETCH_STATUS = 0
    BEGIN
	    FETCH NEXT FROM Employee_Cursor
    END

--第四步：关闭游标
CLOSE Employee_Cursor

--第五步：释放游标
DEALLOCATE Employee_Cursor