經典sql50題,附答案,適合初學者練手!

進來了, 點個贊再走吧, 謝謝您了.web – 數據源 /* create database test50; use test50; create table Student(sid varchar(10),sname varchar(10),sage datetime,ssex nvarchar(10)); insert into Student values(‘01’ , ‘趙雷’ , ‘19

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