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Тезис Предпросмотр

This International Standard, Remote Database Access for SQL (RDA), defines a model for the remote

interaction of an SQL-client and one or more SQL-servers through communication media, and defines

the encoding of messages, the semantics of messages and associated facilities for mediating the

interaction between one SQL-client and one SQL-server.

This International Standard also defines a mapping of the RDA Protocol to the specific communication

inhastructures TCPIIP and Transport Layer Security (TLS).

This International Standard relies upon the facilities provided by ISOIIEC 9075 (SQL) and


This International Standard also:

- identifies potential security vulnerabilities in remote database access using RDA,

- defines RDA facilities which protect against the potential vulnerabilities.

Normative annexes provide:

- a Conformance Proforma,

- an optional language independent Application Programming Interface defined in the notational

conventions of ISOIIEC 9075-3 (SQLICLI) for invoking RDA Operations,

- an optional mapping of ISOIIEC 9075-3 (SQLICLI) functions to RDA Operations,

- definitions of optional SQL-servers, the RDA Location Server and the RDA Support Server, to

facilitate interoperation and data distribution in a heterogeneous environment,

- a set of security profiles that identify which RDA facilities and other security facilities are required

for different levels of protection against potential vulnerabilities.

Informative annexes provide:

- an analysis of security service requirements,

- an ASN. 1 specification for the RDA Protocol,

- an ASN. 1 specification for the encoding of multiple rows.

This International Standard does not constrain:

- conforming RDA-client environments to be implemented using any particular processor


- conforming RDA-server environments to be implemented using any particular processor


This International Standard refers to but does not define:

- protocols and security mechanisms for communication confidentiality, integrity and authentication

of communicating peers,

- digital signature and authentication mechanisms supported by protocol elements of RDA.

This International Standard does not define:

? algorithms for query decomposition or for the combining of results in a distributed database


? mechanisms for recovery in the event that transaction co-ordination fails,

? mechanisms for storage integrity and confidentiality using cryptography,

? mechanisms to counter Denial of Service attacks.

Общая информация

  • Текущий статус :  Published
    Дата публикации : 2000-02
  • Версия : 2
  • :
    ISO/IEC JTC 1/SC 32
    Data management and interchange
  • 35.100.70
    Application layer

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Формат Язык
  • CHF198

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