Mega Code Archive
Populate a DataSet with multiple DataTable objects using multiple SELECT statements
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using System;
using System.Data;
using System.Data.SqlClient;
class MultipleDataTables
{
public static void Main()
{
SqlConnection mySqlConnection =new SqlConnection("server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;");
SqlCommand mySqlCommand = mySqlConnection.CreateCommand();
mySqlCommand.CommandText =
"SELECT TOP 2 ID, FirstName, LastName " +
"FROM Employee " +
"ORDER BY ID;" +
"SELECT ID, LastName " +
"FROM MyEmployee " +
"WHERE ID = 9;";
SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter();
mySqlDataAdapter.SelectCommand = mySqlCommand;
DataSet myDataSet = new DataSet();
mySqlConnection.Open();
int numberOfRows = mySqlDataAdapter.Fill(myDataSet);
Console.WriteLine("numberOfRows = " + numberOfRows);
mySqlConnection.Close();
myDataSet.Tables["Table"].TableName = "Employee";
myDataSet.Tables["Table1"].TableName = "MyEmployee";
foreach (DataTable myDataTable in myDataSet.Tables) {
Console.WriteLine("\nReading from the " +
myDataTable.TableName + "DataTable");
foreach (DataRow myDataRow in myDataTable.Rows)
{
foreach (DataColumn myDataColumn in myDataTable.Columns)
{
Console.WriteLine(myDataColumn + "= " +
myDataRow[myDataColumn]);
}
}
}
}
}
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