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Back to basics: The very clever history of the ROWID

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Manage episode 335905577 series 3376484
内容由Connor McDonald提供。所有播客内容(包括剧集、图形和播客描述)均由 Connor McDonald 或其播客平台合作伙伴直接上传和提供。如果您认为有人在未经您许可的情况下使用您的受版权保护的作品,您可以按照此处概述的流程进行操作https://zh.player.fm/legal

The ROWID underpins many forms of data access within the Oracle Database. If you're a newcomer to Oracle, querying the rowid from a table returns a cryptic string such as "AAAhDyABAAABd0SAAA". But head back into the earlier versions of the database, and querying the rowid would return a completely different format like "0005DD12.0000.0040". In this episode, I'll cover what the rowid is, why the format of the rowid has evolved over the years, and reveal the extremely clever way this evolution occurred - an evolution that allowed the rowid to store more information in the same number of bytes, and as a result, gave rise to multi-petabyte databases.

You can also get a video version of the details in this episode on my YouTube channel here

  continue reading

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Manage episode 335905577 series 3376484
内容由Connor McDonald提供。所有播客内容(包括剧集、图形和播客描述)均由 Connor McDonald 或其播客平台合作伙伴直接上传和提供。如果您认为有人在未经您许可的情况下使用您的受版权保护的作品,您可以按照此处概述的流程进行操作https://zh.player.fm/legal

The ROWID underpins many forms of data access within the Oracle Database. If you're a newcomer to Oracle, querying the rowid from a table returns a cryptic string such as "AAAhDyABAAABd0SAAA". But head back into the earlier versions of the database, and querying the rowid would return a completely different format like "0005DD12.0000.0040". In this episode, I'll cover what the rowid is, why the format of the rowid has evolved over the years, and reveal the extremely clever way this evolution occurred - an evolution that allowed the rowid to store more information in the same number of bytes, and as a result, gave rise to multi-petabyte databases.

You can also get a video version of the details in this episode on my YouTube channel here

  continue reading

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