A database object can have zero to many (0.. n) schemas, and a schema can have zero to many (0.. n) tables, indexes, user-defined types, routines, and so on.
每个数据库对象有0到多个(0 . . n)模式，每个模式可以有0到多个(0 . . n)表、索引、用户定义类型和例程等。
The Servoy environment employs an n-tier architecture which includes cross-database support, and advanced application server, and a variety of deployment options in the presentation layer.
Servoy环境采用一个n层架构，该架构包括跨数据库支持、高级应用程序服务器以及呈现层中的各种部署选项。
Since the redo log group is inactive and is archived, just clear the redo log - alter database clear logfile group N (where N is the group # of the lost redo log)
由于重做日志组是不活动和归档的，所以只需清除重做日志即可 —— alter database clear logfile group N（其中 N 是丢失的重做日志的组 #）。
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