The update with period clause implies that all rows between the time period from value1 to value2 must be updated.

包含周期子句的UPDATE意味着，从value1到value2的时间段内的所有行必须更新。

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The period clause with FOR PORTION OF BUSINESS_TIME FROM value1 TO value2 can be used to apply the update to the specific business time period.

包含 FOR PORTION OF BUSINESS_TIME FROM value1 TO value2 的周期子句可用于将更新应用到特定的业务时间段。

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Update with a period clause implies that all rows between time period value1 to value2 must be updated and can be used to apply the update to the specific business time period.

包含一个周期子句的UPDATE意味着，value1到value2的时间段内的所有行必须更新，可用于将更新应用到特定的业务时间段。

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If the terms of the employment contract condition severance payments on compliance with the non-disparagement clause or unequivocally state that a breach of the non-disparagement clause will result in a forfeiture of severance or other benefits- the clause is optimized if the payments or benefits paid out to the executive director are paid out over a period of time.

FORBES: 5 Must-Haves in an Executive Director's Employment Agreement