user database system tables 用户数据库系统表
There are various types of Bridges available for importing and exporting metadata for database tables, reports, models, user information, etc.
有多种类型的桥，它们可以导入和导出数据库表、报告、模型、用户信息等的元数据。
In addition, each database has its own catalog tables and user tables.
此外，每一个数据库拥有自己的目录表和用户表。
To ensure fast recovery of the partition containing system catalog tables, avoid placing user tables on the same database partition.
为了确保包含系统编目表的分区能够快速恢复，应避免将用户表也放在那个数据库分区上。
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