The language had been used in many database applications based on DM4 now.
该语言目前已广泛使用于基于DM4的数据库应用中。
In the development of database applications based on JDBC Java database connectivity, the database connection management is an important factor which determine the performance.
在基于JDBC的数据库应用开发中，数据库连接的管理是决定该应用性能的一个重要因素。
The database applications based on distributed and heterogeneous problems are increasing rapidly, and the architecture of inter-access of heterogeneous database needs to be perfected and updated.
随着数据库实践中基于分布、异构问题的进一步增多，异构数据库互访的实现需要进一步完善和更新。
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