Whichever server is active presents a standardized interface (ANSI SQL, JDBC, ODBC) to external tools and applications.
不管是哪个服务器处于活动状态，都可以向外部工具和应用程序提供一个标准化接口(ANSI SQL、JDBC、ODBC)。
It had good ANSI SQL support, referential integrity, and good performance as long as the number of concurrent accesses didn't grow too large.
它有很好的ANSI SQL支持和引用完整性，并且只要并发用户的增长不太大它可以保持良好的性能。
file, on which the administrator can set many parameters that affect ANSI SQL compatibility. All database files (except for text table data files) must be kept in the same directory.
所有数据库文件（文本表数据文件除外）必须放在同一个目录中。
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