...(入库金额字段) } outlay{ id number; outlay_amount number;(出库金额字段) } balance { id number; balance number;(余额字段) } 下面辨别在入库和出库表中树立触发器 入库表（income）: 仿制代码 代码以下: CREATE TRIGGER "AA".
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注意，虽然接口不能定义字段，但不变条件测试和其他测试引用了一个隐含的余额字段。
Notice that the invariant and other tests refer to an implied balance field, even though an interface can't define fields.
您所希望做的是编写一个样式表来处理原始文档中所有余额类型的字段，而不必对创建的每个新文档重新编码。
What you'd like to be able to do is write one style sheet that handles all of the balance-type fields in the original document, without having to recode each new document type you create.
如果不设置日历年余额，则使用此组框为指定的公司和年度指定年、期间、开始日期、结束日期、期间名称和缩写字段。
If you are not setting up a balance for a calendar year, use this group box to specify the year, period, begin date, end date, period name, and abbreviated fields for the specified company and year.
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