摘要: 先建个成绩表作为测试数据 CREATE TABLE dbo.score ( [class] nvarchar(10), [student] nvarchar(10), [subject_name] nvarchar(10), [score] decimal(4,1) ) INSERT INTO db 阅读全文
posted @ 2022-02-18 16:32 Jerry_Chen 阅读(825) 评论(0) 推荐(0) 编辑