second normal form 第二范式，第二正规形式
数据库 数据库理论 释文 second normal form, 2NF 第二范式
- Pancho Villa
- panchromatic
- panchromatic film
- panchromatic plate
- panchromatism
- panconnected
- PAN coordinator
- pancosmic theory
- pancosmism
- pancosmos
- Pan(Court Verdict)
- pancratic
- pancreas
- pancreas divisum
- pancreas of domestic animals
- pancreatectomy
- pancreatic cancer
- pancreatic cystic neoplasms
- pancreatic diseases
- pancreatic distension
- pancreatic exocrine function test
- pancreatic injury
- pancreatic island
- pancreatic juice
- pancreatic neuroendocrine tumors