create table emailrecord(
catid int,
cname varchar(250),
email varchar(250) NOT NULL PRIMARY KEY,
cperson varchar(250),
creater varchar(250)
);

create table user(
uid int NOT NULL PRIMARY KEY,
loginname varchar(100),
namepass varchar(100),
FKroleid int
);
insert into user values (1,"elton","8086",1);
insert into user values (2,"penny","8082",1);
insert into user values (3,"michelle","jiang",2);
insert into user values (4,"benny","shipping10",2);

create table role(
roleid int NOT NULL PRIMARY KEY,
rolename varchar(100),
FKpermissionid int
);

create table permission(
permissionid int NOT NULL PRIMARY KEY,
permissionname varchar(100),
FKcategoryid int,
FKoperationid int
);

create table category(
categoryid int NOT NULL PRIMARY KEY,
categoryname varchar(100)
);
insert into category values (0,"stationery");
insert into category values (1,"packaging");
insert into category values (2,"household");

create table operation(
operationid int NOT NULL PRIMARY KEY,
operationname varchar(100)
);

insert into operation values (0,"insert");
insert into operation values (1,"update");
insert into operation values (2,"delete");