web权限数据库设计

CREATE TABLE
 account
 (
 accid INT DEFAULT '0' NOT NULL,
 accCode CHAR(20),
 accName VARCHAR(30),
 PRIMARY KEY (accid)
 )
 ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE
 role
 (
 roleid INT DEFAULT '0' NOT NULL,
 roleCode CHAR(20),
 roleName VARCHAR(30),
 PRIMARY KEY (roleid)
 )
 ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE
 accrole
 (
 accroleid INT DEFAULT '0' NOT NULL,
 faccid INT,
 froleid INT,
 PRIMARY KEY (accroleid),
 CONSTRAINT AccRole_fk1 FOREIGN KEY (faccid) REFERENCES account (accid) ,
 CONSTRAINT AccRole_fk2 FOREIGN KEY (froleid) REFERENCES role (roleid),
 INDEX AccRole_fk1 (faccid),
 INDEX AccRole_fk2 (froleid)
 )
 ENGINE=InnoDB DEFAULT CHARSET=utf8;
	CREATE TABLE
 module
 (
 modid INT DEFAULT '0' NOT NULL,
 modCode CHAR(20),
 modName VARCHAR(30),
 parentCode CHAR(20),
 url VARCHAR(50),
 PRIMARY KEY (modid)
 )
 ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE
 privilege
 (
 priid INT DEFAULT '0' NOT NULL,
 priCode CHAR(20),
 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 KEY (modpriid),
 CONSTRAINT modpri_fk1 FOREIGN KEY (modid) REFERENCES module (modid) ,
 CONSTRAINT modpri_fk2 FOREIGN 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) ,
 CONSTRAINT rolemodpri_fk2 FOREIGN KEY (modpriid) REFERENCES modpri (modpriid),
 INDEX rolemodpri_fk1 (roleid),
 INDEX rolemodpri_fk2 (modpriid)
 )
 ENGINE=InnoDB DEFAULT CHARSET=utf8;