尽管
发表于 2025-3-25 06:32:01
Transaction Management,: A page might have different (and even inconsistent) values each time a client looks at it, making it impossible for the client to get an accurate picture of the database. Or two clients can unwittingly overwrite the values of each other, thereby corrupting the database.
无节奏
发表于 2025-3-25 08:44:49
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VOK
发表于 2025-3-25 15:37:53
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尖酸一点
发表于 2025-3-25 17:02:24
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DEMN
发表于 2025-3-25 23:20:00
Planning,into a relational algebra query tree. This chapter examines the basic planning process. It examines what the planner needs to do to verify that an SQL statement is semantically meaningful and looks at two rudimentary plan-construction algorithms.
Digest
发表于 2025-3-26 02:19:58
JDBC Interfaces,to write each JDBC class using corresponding classes from the engine. Writing a server-based interface also requires the development of additional code to implement the server and handle the JDBC requests. This chapter shows how the use of Java RMI can simplify this additional code.
CAMP
发表于 2025-3-26 08:13:11
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PRISE
发表于 2025-3-26 09:31:30
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主动脉
发表于 2025-3-26 15:24:21
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hidebound
发表于 2025-3-26 19:47:26
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