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呼叫儲存過程

1. 返回單一記錄集的儲存過程

儲存過程Categoriestest1

CREATE PROCEDURE Categoriestest1 
AS
select * 
from  Categories
GO
SqlConnection conn = new SqlConnection(ConStr);
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = "Categoriestest1";
 
// 指定執行語句為儲存過程
cmd.CommandType = CommandType.StoredProcedure;
 
SqlDataAdapter dp = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
dp.Fill(ds);
GridView1.DataSource = ds;
GridView1.DataBind();

2. 沒有輸入輸出的儲存過程

儲存過程Categoriestest2

CREATE PROCEDURE Categoriestest2  AS
insert into dbo.Categories 
(CategoryName,[Description],[Picture])
values ('test1','test1',null)
GO
SqlConnection conn = new SqlConnection(ConStr);
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn ;
cmd.CommandText = "Categoriestest2";
cmd.CommandType = CommandType.StoredProcedure;
conn.Open();
Label1.Text = cmd.ExecuteNonQuery().ToString();
conn.Close();

3. 有返回值的儲存過程

儲存過程 Categoriestest3

CREATE PROCEDURE Categoriestest3
AS
insert into dbo.Categories 
(CategoryName,[Description],[Picture])
values ('test1','test1',null)
return @@rowcount
GO
SqlConnection conn = new SqlConnection(ConStr);
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = "Categoriestest3";
cmd.CommandType = CommandType.StoredProcedure;
 
// 建立引數
IDataParameter[] parameters = { new SqlParameter("rval", SqlDbType.Int,4) };
// 將引數型別設定為 返回值型別
parameters[0].Direction = ParameterDirection.ReturnValue;
// 新增引數
cmd.Parameters.Add(parameters[0]);
 
conn.Open();
// 執行儲存過程並返回影響的行數
Label1.Text = cmd.ExecuteNonQuery().ToString();
conn.Close();
// 顯示影響的行數和返回值
Label1.Text += "-" + parameters[0].Value.ToString();

4. 有輸入引數和輸出引數的儲存過程

儲存過程Categoriestest4

CREATE PROCEDURE Categoriestest4
@id int output,
@CategoryName nvarchar(15)
AS
insert into dbo.Categories 
(CategoryName,[Description],[Picture])
values (@CategoryName,'test1',null)
set  @id = @@IDENTITY
GO
SqlConnection conn = new SqlConnection(ConStr);
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = "Categoriestest4";
cmd.CommandType = CommandType.StoredProcedure;
 
// 建立引數
IDataParameter[] parameters = 
{
    new SqlParameter("@Id", SqlDbType.Int,4) ,
    new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) ,
};
 
// 設定引數型別
parameters[0].Direction = ParameterDirection.Output;  // 設定為輸出引數
parameters[1].Value = "testCategoryName";
 
// 新增引數
cmd.Parameters.Add(parameters[0]);
cmd.Parameters.Add(parameters[1]);
 
conn.Open();
// 執行儲存過程並返回影響的行數
Label1.Text = cmd.ExecuteNonQuery().ToString();
conn.Close();
// 顯示影響的行數和輸出引數
Label1.Text += "-" + parameters[0].Value.ToString();

5. 同時具有返回值、輸入引數、輸出引數的儲存過程

儲存過程 Categoriestest5

CREATE PROCEDURE Categoriestest5
@id int output,
@CategoryName nvarchar(15)
AS
insert into dbo.Categories 
(CategoryName,[Description],[Picture])
values (@CategoryName,'test1',null)
set  @id = @@IDENTITY
return @@rowcount
GO
SqlConnection conn = new SqlConnection(ConStr);
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = "Categoriestest5";
cmd.CommandType = CommandType.StoredProcedure;
 
// 建立引數
IDataParameter[] parameters = 
{
new SqlParameter("@Id", SqlDbType.Int,4) ,
new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) ,
new SqlParameter("rval", SqlDbType.Int,4)
};
 
// 設定引數型別
parameters[0].Direction = ParameterDirection.Output;       // 設定為輸出引數
parameters[1].Value = "testCategoryName";                  // 給輸入引數賦值
parameters[2].Direction = ParameterDirection.ReturnValue;  // 設定為返回值
 
// 新增引數
cmd.Parameters.Add(parameters[0]);
cmd.Parameters.Add(parameters[1]);
cmd.Parameters.Add(parameters[2]);
 
conn.Open();
// 執行儲存過程並返回影響的行數
Label1.Text = cmd.ExecuteNonQuery().ToString();
conn.Close();
// 顯示影響的行數,輸出引數和返回值
Label1.Text += "-" + parameters[0].Value.ToString() + "-" + parameters[2].Value.ToString();

6. 同時返回引數和記錄集的儲存過程

儲存過程Categoriestest6

CREATE PROCEDURE Categoriestest6
@id int output,
@CategoryName nvarchar(15)
AS
insert into dbo.Categories 
(CategoryName,[Description],[Picture])
values (@CategoryName,'test1',null)
set  @id = @@IDENTITY
select * from Categories
return @@rowcount
GO
SqlConnection conn = new SqlConnection(ConStr);
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = "Categoriestest6";
cmd.CommandType = CommandType.StoredProcedure;
 
// 建立引數
IDataParameter[] parameters = 
{
new SqlParameter("@Id", SqlDbType.Int,4) ,
new SqlParameter("@CategoryName", SqlDbType.NVarChar,15) ,
new SqlParameter("rval", SqlDbType.Int,4)                   // 返回值
};
 
// 設定引數型別
parameters[0].Direction = ParameterDirection.Output;        // 設定為輸出引數
parameters[1].Value = "testCategoryName";                   // 給輸入引數賦值
parameters[2].Direction = ParameterDirection.ReturnValue;   // 設定為返回值
 
// 新增引數
cmd.Parameters.Add(parameters[0]);
cmd.Parameters.Add(parameters[1]);
cmd.Parameters.Add(parameters[2]);
 
SqlDataAdapter dp = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();            
dp.Fill(ds);           
GridView1.DataSource = ds.Tables[0];
GridView1.DataBind();
 
Label1.Text = string.Empty;
// 顯示輸出引數和返回值
Label1.Text += parameters[0].Value.ToString() + "-" + parameters[2].Value.ToString();

7. 返回多個記錄集的儲存過程

儲存過程Categoriestest7

CREATE PROCEDURE Categoriestest7
AS
select * from Categories
select * from Categories
GO
SqlConnection conn = new SqlConnection(ConStr);
SqlCommand cmd = new SqlCommand();
cmd.Connection = conn;
cmd.CommandText = "Categoriestest7";
cmd.CommandType = CommandType.StoredProcedure;
 
SqlDataAdapter dp = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();            
dp.Fill(ds);            
GridView1.DataSource = ds.Tables[0];
GridView1.DataBind();            
GridView2.DataSource = ds.Tables[1];
GridView2.DataBind();