Slide 22 of 52
Notes:
(1) This is a short-term advantage, OODB vendors just need to implement the well-known solutions.
(2) Use of parallel processing and very-large-memory architectures can address this issue, but only up to a point.
(3) SQL-3 due to be published in 1998 alleviates this to some extent.
(4) This depends on the RDBMS vendor and CASE tool.
(5) It is almost inconceivable that RDBMSs can ever do this; but that is not to say that it is impossible to write application software using an RDBMS which appears to offer a dynamic schema.
