Oracle中的SYS用户拥有数据字典中的所有基表(base table)及用户访问视图(user-accessible view)。其他Oracle用户不应修改(UPDATE,DELETE,或INSERT)SYS方案中的对象定义及数据,否则将危害数据库的数据完整性(data integrity)。安全管理员必须严格控制此账户。 三、使用数据字典 数据字典
Oracle Database Provider for DRDA has uses several data dictionary views: 8.2.1 ALL_DRDAASPACKAGE Data Dictionary View Table 8-1 contains the list of currently bound DRDA packages. It is owned by user SYSIBM. Users must be granted either the DRDAAS_USER_ROLE or the DRDAAS_ADMIN_ROLE ...
Data dictionary view Type of information ALL_TABLES Information about the object and relational tables TABLES Information about the relational tables XML_TABLES Information about XML tables TAB_COMMENTS Comments about the table structures TAB_HISTOGRAMS Statistics about the use of tables TAB_PARTITIONS Inf...
Complete(全备份):把数据库中所有数据对象导出到 dump 文件中,只有具有 Exp_full_database 的用户有使用这个参数的权限。 Incremental(增量备份):把数据库中所有上次备份后修改的表备份出来。 Cumulative(累计备份):把数据库中所有全备份或者累计备份以后修改的表备份出来。 IMP: 具有三种模式(完全、用户、表) 1、...
Overview of the Oracle Data Dictionary Overview of the Oracle Instance Overview of Accessing the Database Overview of Oracle Utilities Overview of Oracle Grid Architecture - XXX The Oracle grid architecture pools large numbers of servers, storage, and networks into a flexible, on-demand computing res...
By default it's the user used to connect to the Pg database that will be the owner. --nls_lang code: Set the Oracle NLS_LANG client encoding. --client_encoding code: Set the PostgreSQL client encoding. --view_as_table str: Comma separated list of views to export as table. --...
The username (schema name) of the source Oracle database cannot be changed, including the scenarios where the schema name is changed by modifying theUSER$dictionary table in versions earlier than 11.2.0.2 and by usingALTER USER username RENAME TO new_usernamein versions later than 11.2.0.2. ...
"" Comma separated list of file(s) that contain various custom metrics in a TOML format. (env: CUSTOM_) --query.timeout=5 Query timeout (in seconds). (env: QUERY_TIMEOUT) --database.maxIdleConns=0 Number of maximum idle connectionsin the connection pool. (env: DATABASE_MAXIDLE...
ON { DATABASE | [ schema. ] SCHEMA } [ WHEN condition ] PL / SQL_block | CALL procedure_name; 其中: ddl_event_list:一个或多个DDL 事件,事件间用 OR 分开; database_event_list:一个或多个数据库事件,事件间用 OR 分开; 系统事件触发器既可以建立在一个模式上,又可以建立在整个数据库上。当...
By default it's the user used to connect to the Pg database that will be the owner. --nls_lang code: Set the Oracle NLS_LANG client encoding. --client_encoding code: Set the PostgreSQL client encoding. --view_as_table str: Comma separated list of views to export as table. --...