Logical Data Model:DefinesHOWthe system should be implemented regardless of the DBMS. This model is typically created by Data Architects and Business Analysts. The purpose is to developed technical map of rules and data structures. Physical Data Model: This Data Model describesHOWthe system will be...
a transaction that is executed close in time to theevolveSchemaon the primary may be executed in a different order on the Logical Standby because the dependency between the two transactions is not apparent to the Logical Standby. Therefore, when ordering...
If the dependency exists, then the “product price” and the “repricing date” must be separated into its own collection to be in 3NF. Often just the first three rules of normalization are performed, and very few people know that there are more than four rules of normalization. However, ...
,g.slcodex,g.etrdcode,g.busimode3,g.inoutmode from storeslistg g where 1 <> 1 先停止standby,跳过这个事务,kill使用原来的临时表的session,手动执行以上SQL,然后开启standby: SQL> alter database stop logical standby apply; Database altered. SQL> exec dbms_logstdby.skip_transaction(9,27,994864)...
Tables and sequences in the SYS schema Tables with unsupported datatypes Tables used to support functional indexes Tables used to support materialized views Global temporary tables 1. 2. 3. 4. 5. 逻辑STANDBY不支持的表和列可以通过视图dba_logstdby_unsupported来查询: ...
Otherwise, a transaction that is executed close in time to the evolveSchema on the primary may be executed in a different order on the Logical Standby because the dependency between the two transactions is not apparent to the Logical Standby. Therefore, when ordering sensitive PL/SQ...