SQL can not solve the operation in EQUAL TO collation conflict between "CHINESE_PRC_CI_AS" and "CHINESE_PRC_90_CI_AI"

The reason is cause problems when creating inconsistent collation table used

Solution:

Escape collate Chinese_PRC_90_CI_AI increase after contrast conditions can

update article set city_name=address.city_name from address,article where article.county_name=address.county_name collate Chinese_PRC_90_CI_AI and article.province_name=address.province_name collate Chinese_PRC_90_CI_AI