炮兵作战能力评估支持系统评估数据获取

Data Extraction of the Artillery Operational Capability Assessment Support System

尝试4类数据获取方案:PB(Power Builder8.0)与数据连接、PB+利用中间数据库的数据转换、SQL Serve DTS+数据库间直接转换、SQL ServeDTS+利用中间数据库的数据转换。最后确立第4类方案,该方案所有字段类型均使用系统默认的数据类型(与源数据库数据类型相对应),最后将中间数据库中的数据转换到目标数据库。经检验达到预计目标,虽增大了系统硬盘开销,但数据转换精确、可靠性和稳定性也不错。

Attempt four projects of getting data： connecting PB （Power Builder8.0） with data, data conversion with PB＋ by middle database, conversion of databases of SQL Serve DTS＋, data conversion with SQL Serve DTS ＋ by middle database. At last, the fourths to get data is designed, and all types of the words in the project use the default data type （be corresponding with the type of source database data）. The data of the middle database is converted to the target database at the end. The anticipate target is got by examination, although the method costs more in system HD, the data conversion is more accurate, and the credibility and stability is well.