A transaction can complete after one row is processed but can also finish after multiple rows.
一个事务可以在一行被处理之后结束,也可以在多行被处理之后结束。
Certain validation rules can also be accommodated as part of XML schemas but not all kinds of transaction validations can be performed using XML schemas or DTDs.
某些验证规则可以作为XML模式的一部分,但不是所有类型的事务验证都可以用XML模式或DTD来执行。
Not only will this reduce network overhead, but within EJBs, it also critically reduces the number of database calls by creating a single transaction context for the entire business function.
这种方法不但能够降低网络开销,而且在EJB内部通过为整个业务功能创建一个事务环境也可以大大地减少对数据库的访问次数。
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