日期:2009-09-05  浏览次数:20390 次

首先,在SqlServer中创建存储过程,在调用时分为有参数和没有参数两种情况,

先就简单的没有参数的情况简要的介绍:

假设存储过程如下: CREATE PROC SelectAll

AS

SELECT * FROM StudentInf

则此sp的调用如下:

SqlCommand selectCMD = new SqlCommand(“SelectAll”, conn);

//conn 为SqlConnection

selectCMD.CommandType = CommandType.StoredProcedure;

如果需要将结果集加到某个DataAdapter上,则可如下:

SqlDataAdapter stuDA = new SqlDataAdapter();

stuDa.SelectCommand = selectCMD;

如果有参数:create proc andSelect

@StudentId varchar(10),

@StudentName varchar(10),

As

Select * from StudentInf where StudentId = @StudentId and StudentName = @StudentName

则参数可以如下添加:

selectCMD.Parameters.Add(“@StudentId”, SqlDbType.NVarChar, 10);

selectCMD.Parameters.Add(“@StudentName”, SqlDbType.NvarChar, 10);

如果只有一个参数,也可以这样赋值:

SqlParameters onePara = selectCMD.Parameters.Add(“@StudentId”, SqlDbType.NVarChar, 10);

onePara.Value = “ a string ”