Creating a BEFORE trigger statement to enforce automatic validation.
创建强制执行自动验证的BEFORE触发器语句。
Another option is to convert a BEFORE trigger to an AFTER trigger, as long as it does not affect the functionality.
另一种方法是把BEFORE触发器转换为after触发器，前提条件是这不会影响功能。
The before trigger and check constraint on a table XML value always ensures that the XML values are valid as per the specified schema.
对一个表XML值应用before trigger和检查约束，往往可以确保 XML值对于指定模式是有效的。
Similar to the before trigger, the IS VALIDATED ACCORDING TO XMLSCHEMA clause can be used in the check constraints to enforce the validation.
与before trigger类似，可以在检查约束中使用ISVALIDATEDACCORDINGTO XMLSCHEMA 子句来加强验证。
You'll notice that in this case (a before trigger invoked by an update), you can only specify that the trigger fire on each row, not each statement.
您将注意到，在这种情况下(一个在UPDATE之前被激活的触发器)，您只能指定触发器针对每行而不是针对每个语句触发。
In Oracle 10g, if there is a BEFORE INSERT TRIGGER and a NOT NULL constraint on a table, then the BEFORE TRIGGER is executed first, and then the constraint check is performed.
在Oracle10g中，如果表上同时存在BEFORE INSERT触发器和NOT NULL约束，那么先执行BEFORE触发器，然后执行约束检查。
For example, if a before trigger supplies value to a NOT NULL column, then the before trigger is executed first and a value is supplied to the column so that the NOT NULL constraint isn't violated.
例如，如果一个BEFORE触发器给一个NOTnull列提供值，那么先执行BEFORE触发器，给列提供值，所以不会违反NOT NULL约束。
Trigger: I recommend that you have a "trigger" right before you do your habit.
触发事件：我建议在你的习惯开始前最好有一个触发事件。
The Trigger attributes will be input before Activity attribute.
触发属性将在活动属性之前输入。
Before proceeding, the program must have received a valid trigger message, and that message must contain names of both the queue manager and queue that was triggered.
要继续进行，程序必须已经接收一条有效的触发器消息，且该消息必须包含队列管理器的名称和被触发的队列的名称。
Using this technique, you could execute custom validation logic before allowing the form to be submitted, or you could trigger a custom event after the form is submitted.
使用这种技术，您可以在允许提交表单之前执行定制验证逻辑，或者在表单提交之后触发一个定制事件。
As before, the delete trigger needs no modification.
与以前一样，删除触发器不需要修改。
Whether a trigger fires before or after the triggering event is known as the activation time of the trigger.
触发器的启动是在触发事件之前还是之后则称为触发器的激活时间。
To insure your agent is triggered promptly, either clear the queue before starting the trigger monitor or set TRIGINT to a more practical interval.
要确保您的代理及时触发，要么在启动触发监控器之前清除代理命令队列，要么将TRIGINT设置为一个更实用的间隔。
Investors fall into a special category as news consumers; they tend to operate on a hair trigger so they can profit from breaking news before other investors act and wipe out their advantage.
作为新闻的消费者，投资人是一个特殊的类别。他们常常一触即发以至于能在其他的投资人行动，丧失优势前从爆炸新闻中盈利。
Note: Alternatively you can create a database trigger to capture every INSERT on your table and tell it to validate the data as XML using the XMLVALIDATE function before performing the INSERT.
注意：您也可以选择创建一个数据库触发器来捕捉表上的每个INSERT操作，并告诉它在执行INSERT之前使用XMLVALIDATE函数验证XML数据。
Triggers Supports before row triggers, after row and statement triggers with trigger statements written in procedure language compound statements.
触发器支持行前触发器、行后触发器和语句触发器，触发器语句用过程语言复合语句编写。
But before he can pull the trigger, a train whistle startles him.
但是在他开枪之前，一辆列车经过，汽笛声吓了他一跳。
Together, these trigger an immune response which can fight off invading parasites before the second act.
它们共同作用引发一种免疫反应，在第二次活动前就击退入侵的寄生虫。
If an XML validation check constraint exists on the XML column of the table, the user may need to validate the new XML value before the update either manually or by creating a trigger.
如果在表的xml列上存在XML验证检查约束，在手动更新或者通过触发器更新之前，用户可能需要验证新的xml值。
The idea's main strength is that it creates a trigger for action. Banks are forced to raise equity, and regulators to intervene quickly, before trouble spreads.
这主意的主要优势在于它促使银行业被迫增加资产价值，监管者会在麻烦扩散之前迅速介入。
Remember to stop and restart the INS servers before testing the new trigger handler with your subscription portlet.
记住在使用订阅portlet测试新的触发器处理程序之前停止并重新启动INS服务器。
For example, let's say you chose a Time to trigger action of Before for an trigger that is fired by a DELETE statement.
例如，假设您的触发器选择的Timeto triggeraction是Before，触发事件是delete语句。
On the other hand, the "for each statement" (not allowed for "before" triggers) would mean that the actions defined by a trigger would only be performed once for the invoking SQL statement.
另一方面，“foreachstatement ”选项(“before ”型触发器是不允许的)则意味着触发器定义的操作只在调用一次sql语句后执行一次。
A backout plan should be documented before migrating. It should detail what constitutes a successful migration, the conditions that trigger the backout procedure, and the backout procedure itself.
回撤计划应该在迁移之前制定，它应该包含关于构成成功迁移的因素、触发回撤流程的条件和回撤计划本身的详细信息。
Remember that you need to press a letter key or keys to trigger the rocket motion; depending on your computer's speed, you might experience a slight delay before the rockets appear.
记住，您需要按一个或多个字母键来触发火箭运动；根据您的计算机的速度，您可能在火箭出现之前会感觉到一点延迟。
Generally Hendra virus outbreaks in horses occur one to two weeks before illness in humans; detected outbreaks in horses could trigger prevention measures to deter associated outbreaks in humans.
通常亨德拉病毒在马群中的暴发比人间疫情早一到两周。如在马群中发现疫情可促使采取预防措施，以阻止人类出现相关疫情。
Note that due to the smaller track-pad size, as well as the inherent limitations of the ability of the hardware, it may take some practice before you can reliably trigger gesture events.
注意，由于触摸板尺寸较小以及硬件功能的内在限制，因此可能需要进行一些练习才能可靠地触发手势事件。
All things considered, it could be a while before China pulls the trigger on the monetary easing front.
全盘考虑，中国启动货币宽松政策可能仍需一段时间。
All things considered, it could be a while before China pulls the trigger on the monetary easing front.
全盘考虑，中国启动货币宽松政策可能仍需一段时间。
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