用户或管理员可以在查询级或数据源级限制使用异步的程度，以限制异步对本地和远程资源所造成的影响。
The user or administrator can limit the degree to which asynchrony is used at a query or data source level, in order to limit its impact on local and remote resources.
数据库管理员参与SQL查询调优的主要好处之一是，他们可以提出不同的观点。
One of the major advantages of having database administrators involved in SQL query tuning is that they can a offer different perspective.
然后，管理员把查询表定义部署到服务器上。
The administrator then deploys the query table definition onto the server.
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