• Article

Méthode ExecuteReader (String)

Executes Transact-SQL statements that return one or multiple result sets.

Espace de noms :  Microsoft.SqlServer.Management.Common
Assembly :  Microsoft.SqlServer.ConnectionInfo (en Microsoft.SqlServer.ConnectionInfo.dll)

Syntaxe

'Déclaration
Public Function ExecuteReader ( _
    sqlCommand As String _
) As SqlDataReader
'Utilisation
Dim instance As ServerConnection
Dim sqlCommand As String
Dim returnValue As SqlDataReader

returnValue = instance.ExecuteReader(sqlCommand)

public SqlDataReader ExecuteReader(
    string sqlCommand
)

public:
SqlDataReader^ ExecuteReader(
    String^ sqlCommand
)

member ExecuteReader : 
        sqlCommand:string -> SqlDataReader 

public function ExecuteReader(
    sqlCommand : String
) : SqlDataReader

Paramètres

Valeur de retour

Type : System.Data.SqlClient. . :: . .SqlDataReader
A SqlDataReader object value that contains one or more result sets.

Notes

The SqlDataReader object is returned to let the client process the data without requiring it to read all information into memory.

Exemples

C#

ServerConnection conn = new ServerConnection();
conn.DatabaseName = "AdventureWorks2008R2";
SqlDataReader reader = conn.ExecuteReader("SELECT Name, CostRate FROM Production.Location");
while (reader.Read())
{
   string name = (string)reader["Name"];
   decimal cRate = (decimal)reader["CostRate"];
   Console.WriteLine(name + "(" + cRate + ")");
}
reader.Close();

PowerShell

$conn = new-object Microsoft.SqlServer.Management.Common.ServerConnection
$conn.DatabaseName = "AdventureWorks2008R2"
$reader = $conn.ExecuteReader("SELECT Name, CostRate FROM Production.Location")
while ($reader.Read())
{
   $name = $reader.GetValue(0);
   $cRate = $reader.GetValue(1);
   Write-Host $name,"(",$cRate,")"
}
$reader.Close()