In table 6, the INSERT into the Orders table fails due to a foreign key constraint violation on custno.
在表6中,对orders表执行insert语句失败,因为custno违背了外键约束。
A relation is defined between two tables by specifying key columns that link the tables, most commonly regular relations such as customer-to-orders.
两个表之间的关系通过指定链接表的键列来定义,最常见的常规关系比如“客户-订单”。
Relations can also use scripting variables as part of their key definitions, thus making a relation dynamic, such as customers-to-orders that occurred within seven days of a specified date.
关系的键定义中也可以使用脚本变量,从而使一个关系变得动态,比如在某个指定日期的7天之内发生的“客户-订单”。
And almost 90% earnings would be achieved by fulfilling customer orders, it's a key strategic advantage to improve ability in order delivery.
另一方面,由于公司90%的收益都要通过履行客户订单来实现,提高订单交付能力具有关键的战略意义。
It may simply be China's turn to decide over the destiny of mankind, over geography, over value systems, over symbolic orders, over all the key concepts by which we organize our lives.
也许是时候轮到中国来决定人类命运、地理分布、价值体系、符号秩序以及所有我们用来组织生活的关键概念。
It may simply be China's turn to decide over the destiny of mankind, over geography, over value systems, over symbolic orders, over all the key concepts by which we organize our lives.
也许是时候轮到中国来决定人类命运、地理分布、价值体系、符号秩序以及所有我们用来组织生活的关键概念。
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