OLE-Automatisierungsbeispielskript
Dieses Thema enthält ein Beispiel für einen Transact-SQL-Anweisungsbatch, der mithilfe von gespeicherten OLE-Automatisierungsprozeduren ein SQL-DMO SQLServer-Objekt in der lokalen Instanz von Database Engine (Datenbankmodul) erstellt und verwendet. Teile des Codes werden als Beispiele in den Referenzthemen zu den gespeicherten Systemprozeduren der OLE-Automatisierung verwendet.
USE AdventureWorks;
GO
DECLARE @Object int;
DECLARE @HR int;
DECLARE @Property nvarchar(255);
DECLARE @Return nvarchar(255);
DECLARE @Source nvarchar(255), @Desc nvarchar(255);
-- Create a SQLServer object.
SET NOCOUNT ON;
-- First, create the object.
EXEC @HR = sp_OACreate N'SQLDMO.SQLServer',
@Object OUT;
IF @HR <> 0
BEGIN
-- Report the error.
EXEC sp_OAGetErrorInfo @Object,
@Source OUT,
@Desc OUT;
SELECT HR = convert(varbinary(4),@HR),
Source=@Source,
Description=@Desc;
GOTO END_ROUTINE
END
ELSE
-- A DMO.SQLServer object has been successfully created.
BEGIN
-- Specify Windows Authentication for connections.
EXEC @HR = sp_OASetProperty @Object,
N'LoginSecure',
N'TRUE';
IF @HR <> 0 GOTO CLEANUP
-- Set a property.
EXEC @HR = sp_OASetProperty @Object,
N'HostName',
N'SampleScript';
IF @HR <> 0 GOTO CLEANUP
-- Get a property using an output parameter.
EXEC @HR = sp_OAGetProperty @Object, N'HostName', @Property OUT;
IF @HR <> 0
GOTO CLEANUP
ELSE
PRINT @Property;
-- Get a property using a result set.
EXEC @HR = sp_OAGetProperty @Object,
N'HostName';
IF @HR <> 0 GOTO CLEANUP
-- Get a property by calling the method.
EXEC @HR = sp_OAMethod @Object,
N'HostName',
@Property OUT;
IF @HR <> 0
GOTO CLEANUP
ELSE
PRINT @Property;
-- Call the connect method.
-- SECURITY NOTE - When possible, use Windows Authentication.
EXEC @HR = sp_OAMethod @Object,
N'Connect',
NULL,
N'localhost',
NULL,
NULL;
IF @HR <> 0 GOTO CLEANUP
-- Call a method that returns a value.
EXEC @HR = sp_OAMethod @Object,
N'VerifyConnection',
@Return OUT;
IF @HR <> 0
GOTO CLEANUP
ELSE
PRINT @Return;
END
CLEANUP:
-- Check whether an error occurred.
IF @HR <> 0
BEGIN
-- Report the error.
EXEC sp_OAGetErrorInfo @Object,
@Source OUT,
@Desc OUT;
SELECT HR = convert(varbinary(4),@HR),
Source=@Source,
Description=@Desc;
END
-- Destroy the object.
BEGIN
EXEC @HR = sp_OADestroy @Object;
-- Check if an error occurred.
IF @HR <> 0
BEGIN
-- Report the error.
EXEC sp_OAGetErrorInfo @Object,
@Source OUT,
@Desc OUT;
SELECT HR = convert(varbinary(4),@HR),
Source=@Source,
Description=@Desc;
END
END
END_ROUTINE:
RETURN;
GO