--有輸入?yún)?shù)的存儲過程--

create proc GetComment

(@commentid int)

as

select * from Comment where CommentID=@commentid

C# 調(diào)用有輸入?yún)?shù)的存儲過程

SqlConnection conn=new SqlConnection("Server=.;Database=MyDB;uid=sa;pwd=123456");

SqlCommand cmd=new SqlCommand();

cmd.Connection=conn;

cmd.CommandType=CommandType.StoredProcedure;

cmd.CommandText="GetComment";

cmd.Parameters.Clear();

cmd.Parameters.Add("@commentid",SqlDbType.Int).Value=1;

DataTable dt=new DataTable();

SqlDataAdapter da=new SqlDataAdapter(cmd);

da.Fill(dt);

GridView1.DataSource=dt;

GridView1.DataBind();

--有輸入與輸出參數(shù)的存儲過程--

create proc GetCommentCount

@newsid int,

@count int output

as

select @count=count(*) from Comment where NewsID=@newsid

?

SqlConnection conn=new SqlConnection("Server=.;DataBase=MyDB;uid=sa;pwd=123456");

SqlCommand cmd=new SqlCommand();

conn.Open();

cmd.Connection=conn;

cmd.CommandType=CommandType.StoredProcedure;

cmd.CommandText="GetCommentCount";

cmd.Parameters.Clear();

?

cmd.Parameters.Add("@newsid",SqlDbType.Int).Value=2;

SqlParameter sp=new SqlParameter();

sp.ParameterName="@count";

sp.SqlDbType=SqlDbType.Int;

sp.Direction=ParameterDirection.Output;

cmd.Parameters.Add(sp);

Response.Write(sp.Value.ToString());

--返回單個值的函數(shù)--

create function MyFunction

(@newsid int)

returns int

as

begin

declare @count int

select @count=count(*) from Comment where NewsID=@newsid

return @count

end

SqlConnection conn=new SqlConnection("Server=.;Database=MyDB;uid=sa;pwd=123456");

SqlCommand cmd=new SqlCommand();

conn.Open();

cmd.Connection=conn;

cmd.CommandText="MyFunction";

cmd.CommandType=CommandType.StoredProcedure;? -----這兒要設(shè)置為存儲過程

cmd.Parameters.Add("@newsid",SqlDbType.Int).Value=2;

SqlParameter sp=new SqlParameter();

sp.ParameterName="@count";

sp.SqlDbType=SqlDbType.Int;

sp.Direction=ParameterDirection.ReturnValue;

cmd.Parameters.Add(sp);

cmd.ExecuteNonQuery();

Response.Write(sp.Value.ToString());

--調(diào)用方法--

declare @count int

exec @count=MyFunction 2

print @count

?

--返回值為表的函數(shù)--

Create function GetFunctionTable

(@newsid int)

returns table

as

return

(select * from Comment where NewsID=@newsid)

?

--返回值為表的函數(shù)的調(diào)用--

select * from GetFunctionTable(2)

SqlConnection conn=new SqlConnection("Server=.;Database=MyDB;uid=sa;pwd=123456");

SqlCommand cmd=new SqlCommand();

conn.Open();

cmd.Connection=conn;

cmd.CommandType=CommandType.Text;//注意這兒設(shè)置為文本

cmd.CommandText="Select * from GetFunctionTable(@newsid)";

SqlDataReader dr=cmd.ExecuteReader();

DataTable dt=new DataTable();

dt.Load(dt);

GridView1.DataSource=dt;

GridView1.DataBind();

?

?

轉(zhuǎn)載于:https://blog.51cto.com/1906754/502000

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