create table "tablename"
("column1" "data type",
"column2" "data type",
"column3" "data type");
如果你想使用可选的约束,创建表格的格式为:
create table "tablename"
("column1" "data type" [constraint],
"column2" "data type" [constraint],
"column3" "data type" [constraint]);
[ ] = optional
create table T_Employee(FNumber VARCHAR(20),FName VARCHAR(20),FAge int,FSalary NUMERIC(10,2) ,PRIMARY KEY(FNumber));
insert into T_Employee(FNumber,FName,FAge,FSalary) values('DEV001','Tom',25,8300);
insert into T_Employee(FNumber,FName,FAge,FSalary) values('DEV002','Jerry',28,2300.80);
insert into T_Employee(FNumber,FName,FAge,FSalary) values('SALES001','John',23,5000);
insert into T_Employee(FNumber,FName,FAge,FSalary) values('SALES002','Kerry',28,6200);
insert into T_Employee(FNumber,FName,FAge,FSalary) values('SALES003','Stone',22,1200);
insert into T_Employee(FNumber,FName,FAge,FSalary) values('HR001','Jane',23,2200.88);
insert into T_Employee(FNumber,FName,FAge,FSalary) values('HR002','Tina',25,5200.36);
insert into T_Employee(FNumber,FName,FAge,FSalary) values('IT001','Smith',28,3900);
insert into T_Employee(FNumber,FAge,FSalary) values('IT002',27,2800);
https://www.111cn.net/database/110/04d96851b90175bfa77b79f7775ef743.htm
uc浏览器网页版入口官网-手机/电脑uc浏览器网页版入口地址
little fox官方网站入口地址-little fox网页版中国官网入口地址
樱花动漫网官网在线观看入口-樱花动漫网最新网页版入口地址2026
剑桥少儿英语官网入口网址-剑桥少儿英语网页版入口地址
手机百度网盘登录入口地址-百度网盘手机网页版登录入口地址
192.168.1.1无线路由怎么访问?192.168.1.1无线路由器设置登录入口地址