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。

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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。

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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。

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Decreases in barometric pressure two to three days before the visit also appeared to trigger headaches, but to a lesser extent.

VOA: special.2009.03.18

It means seeking feedback, actively listening and weighing the consequences of any decision before pulling the trigger.

FORBES: The Key to Becoming a Ninja Innovator

Jonathan Hough QC, counsel for the coroner, asked the officer if he should have waited before pulling the trigger again after the first blast.

BBC: Dale Burns inquest: Officer fired Taser 'out of fear'

People eyeing the Air for its speed, thinness and beauty should also give the Samsung Series 9 a long, hard look before pulling the trigger.

ENGADGET: MacBook Air review (13-inch, mid 2012)