Script di automazione OLE di esempio
In questo argomento è disponibile un esempio di un batch di istruzioni Transact-SQL che utilizza le stored procedure dell'automazione OLE per creare e utilizzare un oggetto SQL-DMO di SQLServer nell'istanza locale di Motore di database. Parti del codice vengono utilizzate come esempi negli argomenti di riferimento per le stored procedure di sistema dell'automazione OLE.
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