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如何在ASP.NET中执行多个数据库请求。网络C#?

sql asp.net

0

GateKiller · 技术社区 · 16 年前

var DataTable1 = GetDataTable("Select * From Customers");
var DataTable2 = GetDataTable("Select * From Products");
var DataTable3 = GetDataTable("Select * From Orders");

4 回复 | 直到 16 年前

1

6

GateKiller 16 年前

var SqlString = "SELECT * FROM Customers; SELECT * FROM Products; SELECT * FROM ORDERS;");
var ds = GetDataSet(SqlString);
var DataTable1 = ds.Tables(0);
var DataTable2 = ds.Tables(1);
var DataTable3 = ds.Tables(2);

2

1

eeerahul Arrj 13 年前

SqlConnection con = new SqlConnection("Server=CLASS-III-WKS10\\SQLEXPRESS;Initial 
Catalog=wind;Integrated Security=True");
int[] id=new int[9];
int i = 0;
page_load()
{
    con.Open();
    SqlCommand cmd = new SqlCommand("select *from windmill", con);
    SqlDataReader rd = cmd.ExecuteReader();
    while (rd.Read())
    {
        id[i] = rd.GetInt32(9);
        i++;
        //MessageBox.Show(id.ToString());  
    }
    rd.close();
    SqlCommand cmd1 = new SqlCommand("Update windmill set State='Stopped',PmState='Not Available'where Id=0", con);
    cmd1.ExecuteNonQuery(); 
}

3

0

Jonathan Allen 16 年前

    Using con As New SqlConnection
        Using cmd As New SqlCommand("Select * From Customers; Select * From Products; Select * From Orders")
            Using reader = cmd.ExecuteReader
                Dim dt1 As DataTable
                dt1.Load(reader)

                reader.NextResult()

                Dim dt2 As DataTable
                dt2.Load(reader)

                reader.NextResult()


                Dim dt3 As DataTable
                dt3.Load(reader)

            End Using
        End Using
    End Using

4

-1

Pooria 16 年前

创建一个Thread类,并在该类中放置一个接受字符串查询作为输入的方法:

http://msdn.microsoft.com/en-us/library/aa645740(VS.71).aspx