痛恨
发表于 2025-3-25 04:15:45
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AMITY
发表于 2025-3-25 09:09:22
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corpuscle
发表于 2025-3-25 12:32:20
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OCTO
发表于 2025-3-25 18:36:24
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START
发表于 2025-3-25 21:30:00
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prick-test
发表于 2025-3-26 03:38:31
Extending the Object Query Language for Transparent Metadata Accessed extensive queries over both application data as well as metadata. However queries over metadata via OQL, a de-facto standard for object query languages defined for the ODMG 2.0 Object Model, are tied to low-level implementation details of the underlying schema repository of the database system. H
乐章
发表于 2025-3-26 05:42:03
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arboretum
发表于 2025-3-26 09:11:21
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nonsensical
发表于 2025-3-26 16:30:34
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官僚统治
发表于 2025-3-26 20:36:51
Schema Evolution in SQL-99 and Commercial (Object-)Relational DBMSA . denotes the description of the structure and behavior of a database. Straightforwardly, (database) . refers to changes of the database schema that occur during the lifetime of the corresponding database. It particularly refers to changes of schema elements already stored in the database.