Programmers can work transparently with data from these various sources, relying on DB2 II's global query optimizer to select an efficient dataaccessstrategyfor such work.
程序员可以透明地使用来自这些不同数据源的数据，并通过 DB2 II 全局查询优化器来选择一个有效的数据访问策略。
2
The basic authority and the HTTP authority provide access control strategy of the protected resources. The SSL provides mechanism for transmitting sensitive encrypted data.
基本认证和HTTP认证提供了对受保护资源的访问控制策略，而SSL则提供对敏感数据加密传输的机制。
3
This paper emphasizes on broadcast content selection strategy and broadcast scheduling algorithm for efficient access of multiple data items.