Web Rights Database Design

The CREATE TABLE account (accid INT DEFAULT ' 0 ' is not NULL, Acccode CHAR, Accname VARCHAR (30), PRIMARY KEY (accid)) Engine=innodb DEFAULT Charset=utf8;        CREATE TABLE Role (Roleid INT DEFAULT ' 0 ' not NULL, Rolecode CHAR, RoleName VARCHAR (30), PRIMARY KEY (Roleid)) Engine=innodb DEFAULT Charset=utf8; CREATE TABLE accrole (accroleid int DEFAULT ' 0 ' not NULL, faccid int, Froleid int, PRIM ARY Key (Accroleid), CONSTRAINT accrole_fk1 FOREIGN KEY (faccid) REFERENCES account (accid), CONSTRAINT Acc ROLE_FK2 FOREIGN KEY (Froleid) REFERENCES role (Roleid), index ACCROLE_FK1 (faccid), index ACCROLE_FK2 (frol Eid)) Engine=innodb DEFAULT Charset=utf8;        CREATE TABLE Module (modid INT DEFAULT ' 0 ' not NULL, Modcode CHAR, ModName VARCHAR (30), Parentcode CHAR, url VARCHAR (PRIMARY KEY (Modid))    Engine=innodb DEFAULT Charset=utf8;         CREATE TABLE Privilege (priid INT DEFAULT ' 0 ' not NULL, Pricode CHAR (), Priname VARCHAR (30), PRIMARY KEY (priid)) Engine=innodb DEFAULT Charset=utf8; CREATE TABLE modpri (modpriid int DEFAULT ' 0 ' not NULL, Modid int, priid int, PRIMARY K EY (MODPRIID), CONSTRAINT modpri_fk1 FOREIGN KEY (modid) REFERENCES module (modid), CONSTRAINT modpri_fk2 F    Oreign KEY (PRIID) REFERENCES Privilege (priid), index MODPRI_FK1 (modid), index MODPRI_FK2 (PRIID)) Engine=innodb DEFAULT Charset=utf8;        CREATE TABLE rolemodpri (rolemodpri int DEFAULT ' 0 ' not NULL, Roleid int, modpriid int, PRIMARY Key (ROLEMODPRI), CONSTRAINT rolemodpri_fk1 FOREIGN KEY (Roleid) REFERENCES role (Roleid), Constra  INT rolemodpri_fk2 FOREIGN KEY (modpriid) REFERENCES Modpri (modpriid), index ROLEMODPRI_FK1 (roleid), indexROLEMODPRI_FK2 (MODPRIID)) Engine=innodb DEFAULT Charset=utf8; 

Design diagram:

Attachment:

http://download.csdn.net/detail/linzhichao12345/7741975