Método ServerConnection.ExecuteScalar (StringCollection)
Executa um lote de instruções Transact-SQL e retorna a primeira coluna da primeira linha como um valor de objeto.
Namespace: Microsoft.SqlServer.Management.Common
Assembly: Microsoft.SqlServer.ConnectionInfo (em Microsoft.SqlServer.ConnectionInfo.dll)
Sintaxe
'Declaração
Public Function ExecuteScalar ( _
sqlCommands As StringCollection _
) As Object()
'Uso
Dim instance As ServerConnection
Dim sqlCommands As StringCollection
Dim returnValue As Object()
returnValue = instance.ExecuteScalar(sqlCommands)
public Object[] ExecuteScalar(
StringCollection sqlCommands
)
public:
array<Object^>^ ExecuteScalar(
StringCollection^ sqlCommands
)
member ExecuteScalar :
sqlCommands:StringCollection -> Object[]
public function ExecuteScalar(
sqlCommands : StringCollection
) : Object[]
Parâmetros
- sqlCommands
Tipo: StringCollection
Um valor do objeto do sistema StringCollection que especifica os lotes de instruções Transact-SQL a serem executados.
Valor de retorno
Tipo: array<Object[]
Um valor da matriz de objetos que especifica a primeira coluna da primeira linha de cada conjunto de resultados.
Exemplos
C#
ServerConnection conn = new ServerConnection();
conn.DatabaseName = "AdventureWorks2012";
StringCollection sqlQuery = new StringCollection();
sqlQuery.Add("SELECT Name FROM Production.Location");
sqlQuery.Add("SELECT CostRate FROM Production.Location");
Object[] costData = conn.ExecuteScalar(sqlQuery);
for (int i = 0; i < costData.Length; i++)
{
Console.WriteLine(costData[i].ToString());
}
PowerShell
$conn = new-object Microsoft.SqlServer.Management.Common.ServerConnection
$conn.DatabaseName = "AdventureWorks2012"
$sqlQuery = new-object System.Collections.Specialized.StringCollection
$sqlQuery.Add("SELECT Name FROM Production.Location")
$sqlQuery.Add("SELECT CostRate FROM Production.Location")
$costData = $conn.ExecuteScalar($sqlQuery)
$i = 0
while ($i -le $costData.Length)
{
Write-Host $costData[$i]
$i++
}
Consulte também
Referência
Namespace Microsoft.SqlServer.Management.Common