c#调用存储过程

存储过程（Stored Procedure）即用来存储数据表操作的一个过程，是把对数据表操作的方法存储到一起的一个对象，是存储在数据库中。

优点：1.降低网络传输数据量：通过存储过程的名称和参数传递即可调用执行，不用传输sql。

2.执行效率高：sqlserver会事先将存储过程编译成可执行的二进制代码，运行存储过程时，无需再次编译。

3.封装性：也可叫模块式编程，将实现某种功能的多条sql封装到一个对象中，可多次重复调用，可移植性强。

4.安全：可针对不同的权限的用户使用不同的存储过程。

下面讲C#如何调用写好的存储过程，下面是对数据操作封装几个函数

 1  //执行对表的增删改操作的sql语句
 2 public static int ExecuteCommand(string text)
 3         {
 4             using (SqlConnection conn = new SqlConnection(connectionString))
 5             {
 6                 conn.Open();
 7                 using (SqlCommand cmd = new SqlCommand(text, conn))
 8                 {
 9                     int i = cmd.ExecuteNonQuery();
10                     return i;
11                 }
12             }
13         }
14
15 public static int ExecStoredProcedure(string procName, params SqlParameter[] parameters)
16         {
17             int rtn = 0;
18             using (SqlConnection conn = new SqlConnection(connectionString))
19             {
20                 conn.Open();
21                 using (SqlCommand cmd = conn.CreateCommand())
22                 {
23                     SqlTransaction st = conn.BeginTransaction();
24                     cmd.Transaction = st;
25                     try
26                     {
27                         cmd.CommandText = procName;
28                         cmd.CommandType = CommandType.StoredProcedure;
29                         cmd.Parameters.AddRange(parameters);
30                         rtn= cmd.ExecuteNonQuery();
31                         st.Commit();
32                         return rtn;
33                     }
34                     catch(SqlException sqlex)
35                     {
36                         st.Rollback();
37                         throw sqlex;
38                     }
39                 }
40             }
41         }
42         public static int ExecuteStoredProcedure(string procName,
43             params SqlParameter[] parameters)
44         {
45             using (SqlConnection conn = new SqlConnection(connectionString))
46             {
47                 conn.Open();
48                 using (SqlCommand cmd = conn.CreateCommand())
49                 {
50                     cmd.CommandText = procName;
51                     cmd.CommandType = CommandType.StoredProcedure;
52                     cmd.Parameters.AddRange(parameters);
53                     return cmd.ExecuteNonQuery();
54                 }
55             }
56
57         }

推荐用第三种方式，用到了事务处理，若只要有一条不通过全部回滚，避免脏数据的产生。也可以在存储过程中使用事务，后续会继续更新...

 1 protected void Button1_Click(object sender, EventArgs e)
 2     {
 3         string mainName = "圆梦组";
 4         string detailName="刘能|赵本山|沈燕|欧阳锋";
 5         string detailAge="23|32|18|19";
 6         int rtn=DBHelper.ExecuteCommand(string.Format("exec dbo.Proc_TestBatchMainDetailIns '{0}','{1}','{2}'", mainName, detailName,detailAge));
 7     }
 8     protected void Button2_Click(object sender, EventArgs e)
 9     {
10         string mainName = "起航组2";
11         string detailName="段毅2|乔峰2|杨过2|李莫愁2";
12         string detailAge="18|28|jj|35";
13         SqlParameter[] sps = new SqlParameter[] {
14         new SqlParameter("@mainName",mainName),
15             new SqlParameter("@detailNameStr",detailName),
16              new SqlParameter("@detailAgeStr",detailAge)
17         };
18         try
19         {
20             int rtn = DBHelper.ExecuteStoredProcedure("dbo.Proc_TestBatchMainDetailIns", sps);
21         }
22         catch (Exception ex)
23         {
24             Response.Write(ex.Message);
25         }
26
27     }
28     protected void Button3_Click(object sender, EventArgs e)
29     {
30         string mainName = "起航组2";
31         string detailName = "段毅2|乔峰2|杨过2|李莫愁2";
32         string detailAge = "18|28|jj|35";
33         SqlParameter[] sps = new SqlParameter[] {
34         new SqlParameter("@mainName",mainName),
35             new SqlParameter("@detailNameStr",detailName),
36              new SqlParameter("@detailAgeStr",detailAge)
37         };
38         try
39         {
40             int rtn = DBHelper.ExecStoredProcedure("dbo.Proc_TestBatchMainDetailIns", sps);
41         }
42         catch (Exception ex)
43         {
44             Response.Write(ex.Message);
45         }
46     }

protected void Button1_Click(object sender, EventArgs e)
 2     {
 3         string mainName = "圆梦组";
 4         string detailName="刘能|赵本山|沈燕|欧阳锋";
 5         string detailAge="23|32|18|19";
 6         int rtn=DBHelper.ExecuteCommand(string.Format("exec dbo.Proc_TestBatchMainDetailIns '{0}','{1}','{2}'", mainName, detailName,detailAge));
 7     }
 8     protected void Button2_Click(object sender, EventArgs e)
 9     {
10         string mainName = "起航组2";
11         string detailName="段毅2|乔峰2|杨过2|李莫愁2";
12         string detailAge="18|28|jj|35";
13         SqlParameter[] sps = new SqlParameter[] {
14         new SqlParameter("@mainName",mainName),
15             new SqlParameter("@detailNameStr",detailName),
16              new SqlParameter("@detailAgeStr",detailAge)
17         };
18         try
19         {
20             int rtn = DBHelper.ExecuteStoredProcedure("dbo.Proc_TestBatchMainDetailIns", sps);
21         }
22         catch (Exception ex)
23         {
24             Response.Write(ex.Message);
25         }
26
27     }
28     protected void Button3_Click(object sender, EventArgs e)
29     {
30         string mainName = "起航组2";
31         string detailName = "段毅2|乔峰2|杨过2|李莫愁2";
32         string detailAge = "18|28|jj|35";
33         SqlParameter[] sps = new SqlParameter[] {
34         new SqlParameter("@mainName",mainName),
35             new SqlParameter("@detailNameStr",detailName),
36              new SqlParameter("@detailAgeStr",detailAge)
37         };
38         try
39         {
40             int rtn = DBHelper.ExecStoredProcedure("dbo.Proc_TestBatchMainDetailIns", sps);
41         }
42         catch (Exception ex)
43         {
44             Response.Write(ex.Message);
45         }
46     }