Raiserror()

DECLARE @DBID INT;

SET @DBID = DB_ID();

DECLARE @DBNAME NVARCHAR(128);

SET @DBNAME = DB_NAME();

RAISERROR

    (N'The current database ID is:%d, the database name is: %s.',

    10, -- Severity.

    1, -- State.

    @DBID, -- First substitution argument.

    @DBNAME); -- Second substitution argument.

GO