.Net 下对SqlServer2000中的存储过程的调用

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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 ”

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