Coding Sparks

Install Xampp in Ubuntu: Step1 : Open Terminal Before installing the package, create a directory. user1@user1:~$ mkdir xampp user1@user1:~$ cd xampp/ user1@user1:~/xampp$  * it creates a folder in HOME Step2 : wget https://sourceforge.net/projects/xampp/files/XAMPP%20Linux/5.6.23/xampp-linux-5.6.23-0-installer.run chmod +x xampp-linux-5.6.23-0-installer.run sudo ./ xampp-linux-5.6.23-0-installer.run https://bitnami.com/stack/xampp?utm_source=bitnami&utm_medium=installer&utm_campaign=XAMPP%2BInstaller http://localhost/dashboard/ Check Xampp Status: sudo /opt/lampp/lampp status Run Xampp with Control Panel window: sudo /opt/lampp/manager-linux.run Run Xampp: sudo /opt/lampp/manager-linux.run Stop Xampp: sudo /opt/lampp/lampp stop You can create the backup by calling: sudo /opt/lampp/lampp backup

Install NetBeans: chmod +x netbeans- 8.1 -linux.sh Now to execute it run from its directory sudo sh netbeans- 8.1 -linux.sh

DBMS FAQ's 1. What is database?  A database is a logically coherent collection of data with some inherent meaning, representing some aspect of real world and which is designed, built and populated with data for a specific purpose. 2. What is DBMS?  It is a collection of programs that enables user to create and maintain a database. In other words it is general-purpose software that provides the users with the processes of defining, constructing and manipulating the database for various applications. 3. What is a Database system?  The database and DBMS software together is called as Database system. 4. Advantages of DBMS?  Redundancy is controlled. Unauthorized access is restricted. Providing multiple user interfaces. Enforcing integrity constraints. Providing backup and recovery. 5. Disadvantage in File Processing System?  Data redundancy & inconsistency. Difficult in accessing data. Data isolation. Data integrity. Concurrent access is not possible. Sec