This can cause a distributed query to fail with an error if the schema of a remote table has changed between query compilation and execution 如果远程表的架构在编译查询与执行查询之间发生了变化，则将此选项设置为true会导致分布式查询出现错误而失败。
The setting of the set rowcount option is ignored for insert , update , and delete statements against remote tables and local and remote partitioned views 对于在远程表和本地及远程分区视图上执行的insert 、 update和delete语句，将忽略set rowcount选项设置。
If the select statement does not support updates insufficient permissions , accessing remote tables that do not support updates , and so on , the cursor is read only 如果select语句不支持更新（由于权限不够、访问的远程表不支持更新等等） ，则游标为read _ only 。
Also , this option is not supported for insert statements issued against remote tables in the database engine when the compatibility level is set to 80 or higher 此外，当兼容级别设置为80或更高时，对于针对数据库引擎中的远程表发出的insert语句也不支持此选项。
If the remote table includes attributes such as primary key constraints or other forms of constraints , they can be captured in the federated system through the specification of 如果远程表包括诸如主键约束或其他形式的约束的属性，那么在联邦系统中可以通过在昵称上指定
Because a federated system includes a db2 database , you can also store local data in it , as well as combine information from both local and remote tables 由于联邦系统包括一个db2数据库，所以还可以将本地数据存储在这个数据库中，也可以存储来自本地表和远程表的组合信息。
If the remote server is referenced in the recursive member of the cte , a spool is created for each remote table so the tables can be repeatedly accessed locally 如果在cte的递归成员中引用了远程服务器，那么将为每个远程表创建一个假脱机，这样就可以在本地反复访问这些表。
Once the statistics are gathered for a nickname , they are not automatically modified when the remote statistics are updated on the data source for the corresponding remote table 如果为一个昵称收集了统计信息，那么在数据源上对相应远程表的远程统计信息进行更新时，这些统计信息不会自动更新。
For a remote invalid object , however , deferred name resolution is not supported ; if an invalid remote table is used in a procedure , the procedure creation fails and returns an error 但对于远程无效对象，不支持延迟名称解析( dnr ) ；如果在某一过程中使用无效的远程表，则该过程的创建将失败，并返回错误。
The name of the remote table , the name of its columns , their data types , indexes , or the location of a remote file , and so on , are registered in the information integrator catalogs when a nickname is created 创建别名时，远程表的名称、其列的名称、数据类型、索引或远程文件的位置等都要在information integrator编目中注册。
