摘要: 1.安装 netaddr 组件 pip install netaddr -i https://mirrors.aliyun.com/pypi/simple/ from netaddr import IPNetwork print('https://ipjisuanqi.com/#121.224.14 阅读全文
posted @ 2020-05-23 21:53 VipSoft 阅读(2058) 评论(0) 推荐(0)
摘要: 1.查出有哪些约束 SELECT CONSTRAINT_NAME,CONSTRAINT_TYPE,STATUS FROM USER_CONSTRAINTS WHERE TABLE_NAME ='D_DRUG_DICTIONARY'; 2.删除 唯一约束 ALTER TABLE D_DRUG_DICT 阅读全文
posted @ 2020-05-23 01:08 VipSoft 阅读(3236) 评论(0) 推荐(0)