The UNION operation repeats this step until the SHIP buffer is empty.

UNION操作符重复这个步骤，直到ship缓冲区为空。

youdao

"Union Operation not allowed in sub query" is there a way to fix this in one single query?

“子查询”不允许联合手术是有办法解决这一单一的查询？

youdao

He followed the Shaman's directions to the subterranean caverns, and after witnessing a disturbing vision of his future, realized that he had stumbled upon the Techno Union operation.

按照巫师的指示，他来到地下洞穴。在幻觉中目睹自己令人不安的未来之后，他发现自己恍然来到了技术联盟的指挥所。

youdao

He described Union cooperation in Africa, including the deployment of two military operations in the Democratic Republic of the Congo and one in Chad, as well as a naval operation off the coast of Somalia and assistance for the African Union operation and the Transitional Federal Government in the country.

UN: Security Council

Few wanted to remember that two years later, when the Germans invaded the Soviet Union in Operation Barbarossa.

ECONOMIST: How Stalin and Hitler enabled each other��s crimes

Specifically, because we know the importance of peace in Darfur I am announcing today more help from Britain to train, equip and deploy African troops for the joint UN-African Union peacekeeping operation.

BBC: In full: Brown security statement