Update Dummy_Database.md

Dummy_Database.md

@@ -1,13 +1,13 @@
 ### Copy and Paste the following MYSQL commands to make a dummy database for this Project :
 
 
-create database onlinebookstore;
+create database if not exists onlinebookstore;
 
 use onlinebookstore;
 
-create table books(barcode varchar(100) primary key, name varchar(100), author varchar(100), price int, quantity int);
+create table if not exists books(barcode varchar(100) primary key, name varchar(100), author varchar(100), price int, quantity int);
 
-create table users(username varchar(100) primary key,password varchar(100), firstname varchar(100),lastname varchar(100),address text, phone varchar(100),mailid varchar(100),usertype int);
+create table if not exists users(username varchar(100) primary key,password varchar(100), firstname varchar(100),lastname varchar(100),address text, phone varchar(100),mailid varchar(100),usertype int);
 
 
 insert into  books values('9780134190563','The Go Programming Language','Alan A. A. Donovan and Brian W. Kernighan',400,8);
@@ -26,15 +26,15 @@ insert into  books values('9780132350884','Clean Code: A Handbook of Agile Softw
 
 insert into  books values('9780132181273','Domain-Driven Design','Eric Evans',560,28);
 
-insert into  books values('9781951204006','A Programmer's Guide to Computer Science','William Springer',188,4);
+insert into  books values('9781951204006','A Programmers Guide to Computer Science','William Springer',188,4);
 
 insert into  books values('9780316204552','The Soul of a New Machine','Tracy Kidder',293,30);
 
 insert into  books values('9780132778046','Effective Java','Joshua Bloch',368,21);
 
 insert into  books values('9781484255995','Practical Rust Projects','Shing Lyu',257,15);
 
-insert into users values('User','Password','First','User','My Home','42502216225','User@gmail.com',2);
+insert into users values('demo','demo','Demo','User','Demo Home','42502216225','demo@gmail.com',2);
 
 insert into users values('Admin','Admin','Mr.','Admin','Haldia WB','9584552224521','[email protected]',1);