SQL查询在妇产科医院统计工作中的应用

周哲颖，史佳敏，黄锐

Application of SQL query in statistical work in an obstetrics and gynecology hospital

Zhou Zheying, Shi Jiamin, Huang Rui

中国医院统计 . 2021, (6): 546 -550 . DOI: 10.3969/j.issn.1006-5253.2021.06.014