ADO - Connection::Execute() Returning Zero Records Affected After Successful Insertion Of Data In SQL Server 2005

Hello,

For the following ADO Connection::Execute() function the "recAffected" is zero, after a successful insertion of data, in SQL Server 2005. In SQL Server Express I am getting the the number of records affected value correctly.

_variant_t recAffected;
connectionObject->Execute(SQL, &recAffected, adCmdText );

The SQL string is

BEGIN
DELETE FROM MyTable WHERE Column_1 IN ('abc', 'def' )
END
BEGIN
INSERT INTO MyTable (Column_1, Column_2, Cloumn_3 )
SELECT 'abc', 'data11', 'data12'
UNION ALL
SELECT 'def', 'data21', 'data22'
END

But see this, for SQL Server 2005 "recAffected" has the correct value of 2 when I have just the insert statement.

INSERT INTO MyTable (Column_1, Column_2, Cloumn_3 )
SELECT 'abc', 'data11', 'data12'
UNION ALL
SELECT 'def', 'data21', 'data22'

For SQL Server 2005 in both cases the table got successfully inserted two rows and the HRESULT of Execute() function returns S_OK.

Does the Execute function has any problem with a statement like the first one (with delete and insert) on a SQL Server 2005 DB?

Why the "recAffected" has a value zero for the first SQL (with delete and insert) on a SQL Server 2005 DB? Do I need to pass any options to Execute() function for a SQL Server 2005 DB?

When connecting to SQL Server Express the "recAffected" has the correct values for any type of SQL statements.

Thank you for your time. Any help greatly appreciated.

Thanks,
Kannan