It is set at the session level using set session.

使用SET SESSION在会话级进行设置。

youdao

Global variables are scoped to a per-session level within an XA transaction and are not available to other sessions that join the transaction.

全局变量的范围被规定为XA事务内的单一会话级别，并且不可用于其他加入事务的会话。

youdao

Then use the OPTPROFILE bind option at the package level, or the CURRENT optimization profile special register at the session level, to enable the optimization profile.

然后在包级别使用OPTPROFILE绑定选项，或者在会话级别使用CURRENT OPTIMIZATION PROFILE专用寄存器，从而启用优化概要文件。

youdao

The New York meeting co-chaired by President Obama, British Prime Minister Gordon Brown and Pakistani President Asif Ali Zardari was the first summit-level session of the informal Friends of Democratic Pakistan grouping, and it brought together leaders of some 25 countries and organizations.

VOA: standard.2009.09.24

In a video message to the High-level session, UN Secretary-General Ban Ki-Moon called upon the scientific community to help make sense of the complex and interconnected challenges --including climate change, the financial crisis and food, water and energy insecurity -- that threaten human well-being and civilization as we know it.

UNESCO: Irina Bokova: we must harness the power of science to empower people | United Nations Educational, Scientific and Cultural Organization

This will mark the first time in recent years that a Republican House will have to engage in a high-level negotiating session with a Democratic Senate.

CNN: Bush impatient with Congress on education bill

What worries many people here is the prospect that the high-level political session of the talks, due to start late on Wednesday, will land ministers in an almost impossible situation.

BBC: Climate talks 'going backwards'