没有并发，单表查询，又不是很庞大的表的话，数据库本身速度当然会很快。
Did not erupt simultaneously, sheet expresses inquiry, not be the word of very huge list, database itself speed is met of course very fast.
该软部件可以即插即用，使用时不需再编写程序，即可实现对任何单表任意多个由任意字段构成的条件综合查询。
The soft components can plug and play and can implement any conditional synthesis inquiry of some single datasheets consisting of some fields without changing any codes in use.
用有限状态机机制，在话单文件信息表中表示话单文件状态的变化，以便查询。
Change of call file status presents in call file information table by Finite State Machines mechanism.
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