.Net下调用SQL Server2000中存储过程

1/5/2008来源:Java教程人气:5622


  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;
  
  假如需要将结果集加到某个DataAdapter上,则可如下:
  
  SqlDataAdapter stuDA = new SqlDataAdapter();
  stuDa.SelectCommand = selectCMD;
  
  假如有参数: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);
  
  假如只有一个参数,也可以这样赋值:
  
  SqlParameters onePara = selectCMD.Parameters.Add(“@StudentId”, SqlDbType.NVarChar, 10);
  onePara.Value = “ a string ”