user 



CREATE TABLE users (UID INT NOT NULL AUTO_INCREMENT PRIMARY KEY, username VARCHAR(60) NOT NULL,firm VARCHAR(60) NOT NULL, email VARCHAR(60) NOT NULL,password VARCHAR(60)NOT NULL) 

ADMIN

CREATE TABLE admin (AID INT NOT NULL AUTO_INCREMENT PRIMARY KEY, username VARCHAR(60) NOT NULL,email VARCHAR(60) NOT NULL, password VARCHAR(60)NOT NULL)

AEXEIO VASIS 

CREATE TABLE admin (FID INT NOT NULL AUTO_INCREMENT PRIMARY,FOREIGN KEY (UId) REFERENCES users(UId) KEY,PRODUCTNAME VARCHAR(10),CI  INT(20),
CR INT(20), CD INT(20),CI  INT(20),N  INT(20),A VARCHAR(10),B VARCHAR(10))