目的探讨Oracle数据库系统跨版本跨平台升级实现的可行性方案。方法从制订方案、方案实施、数据验证方面,详细介绍了Oracle数据库升级的具体实施方法与技术要点。结果实现Oracle数据库从10g for Windows到19c RAC for Linux的跨多版本...目的探讨Oracle数据库系统跨版本跨平台升级实现的可行性方案。方法从制订方案、方案实施、数据验证方面,详细介绍了Oracle数据库升级的具体实施方法与技术要点。结果实现Oracle数据库从10g for Windows到19c RAC for Linux的跨多版本系统升级,系统稳定运行。结论采用数据泵(expdp/im‐pdp)工具,通过建立中间库的方式升级,安全可靠,可操作性强,对相同功能需求具有参考借鉴价值。展开更多
Remote sensing image contains plenty Geo-information. Issuing the Geo-information on the Internet is abasic component of sharing RS Image's Geo-information. The most important of issuing the information is to orga...Remote sensing image contains plenty Geo-information. Issuing the Geo-information on the Internet is abasic component of sharing RS Image's Geo-information. The most important of issuing the information is to organizeand manage RS image data efficiently according to their characteristics and peculiar Geo-information it them. Accord-ing to the properties of multi-sensor, multi-resolution, multi-spectrum and multi-epoch of RS image data and theirpeculiar Geo-information. This paper has constructed a solid index mechanism of "Pyramid, Block, Layer, Epoch"according to the properties of RS image data and established corresponding logic relation databases for RS image data.The Geo-information of RS image data is reorganized via the solid index mechanism and logic database. Finally, theabove ideas are used in setting up an image database system to provide query and search for Geo-information on theInternet.展开更多
文摘目的探讨Oracle数据库系统跨版本跨平台升级实现的可行性方案。方法从制订方案、方案实施、数据验证方面,详细介绍了Oracle数据库升级的具体实施方法与技术要点。结果实现Oracle数据库从10g for Windows到19c RAC for Linux的跨多版本系统升级,系统稳定运行。结论采用数据泵(expdp/im‐pdp)工具,通过建立中间库的方式升级,安全可靠,可操作性强,对相同功能需求具有参考借鉴价值。
文摘Remote sensing image contains plenty Geo-information. Issuing the Geo-information on the Internet is abasic component of sharing RS Image's Geo-information. The most important of issuing the information is to organizeand manage RS image data efficiently according to their characteristics and peculiar Geo-information it them. Accord-ing to the properties of multi-sensor, multi-resolution, multi-spectrum and multi-epoch of RS image data and theirpeculiar Geo-information. This paper has constructed a solid index mechanism of "Pyramid, Block, Layer, Epoch"according to the properties of RS image data and established corresponding logic relation databases for RS image data.The Geo-information of RS image data is reorganized via the solid index mechanism and logic database. Finally, theabove ideas are used in setting up an image database system to provide query and search for Geo-information on theInternet.