創(chuàng)建表create tablestudent(idint,namevarchar(20),sexvarchar(20),ageint,saleryfloat(6,2),birthday date)//刪除表drop table student;//查看所有表show tables//查看表的創(chuàng)建細(xì)節(jié)show create table student;//展示表結(jié)構(gòu)desc student// 在原有的學(xué)生基礎(chǔ)上添加address列alter table student add