编辑代码

CREATE database ygxx;
use ygxx;
create table yuangong(
    ygh varchar(20)primary key,
    xm varchar(2),
    csny date);
    create table geshui（
    bh varchar(20)primary key,
    ygh varchar(20),
    ny date,
    gsje float);
    create table kaoqin(
        bh varchar(20)primary key,
        ygh varchar(20);
        ny date,
        cd int,
        zt int,
        kg int);
)