Tech Trek: A Software Engineer's Guide to Code and Beyond

Entity framework is an Object/Relational Mapping (O/RM) framework. It is an enhancement to ADO.NET that gives developers an automated mechanism for accessing & storing the data in the database and working with the results in addition to DataReader and DataSet. It eliminates the need for most of the data-access code that developers usually need to write. It allows you to create a model by writing code or using boxes and lines in the EF Designer. Both of these approaches can be used to target an existing database or create a new database. It also provides services like change tracking, identity resolution, lazy loading, and query translation so that developers can focus on their application-specific business logic rather than the data access fundamentals. Following figure shows the overall architecture of the Entity Framework (Source : http://www.codeproject.com/ ) Application : Application which is going to use Entity Framework. EDM (Entity Data Model): EDM consist thr...

Steps : *) Open the interfaces file :           sudo vi /etc/network/interfaces If you are using DHCP you will see the following lines :           auth eth0           iface eth0 inet dhcp  *) To make it static, Change the line iface eth0 inet dhcp to iface eth0 inet static and add the following just below it: address 10.35.34.209 (IP address that you need to set) netmask 255.255.255.0 (Default mask which in this case is the default class c subnet) gateway 10.35.34.1 (Typically your router’s IP address) network 10.35.34.0 (The network that this machine is running on) broadcast 10.35.34.255 Here is a screenshot of how it should look below : *) Once you save this file you need to restart your networking service.        sudo /etc/init.d/networking restart or         sudo service networking restart Note :   /etc/init.d/networking restart command i...

It was really a pain for me to work on Oracle VM, It won't allow you to use mouse or do copy-paste. So I decided to connect my local VM via SSH( Putty). Steps : 1.  In your VM box, Goto Settings -> Network ->Adapter 1 and select "Bridged Adapter" 2. In your Ubuntu Machine, Install "openssh-server"            sudo apt-get install openssh-server 3. Reboot the VM and Run "ifconfig" command in terminal and get "inet addr" of "eth0". 4. Open putty, Enter the IP address(IP of your VM machine ) , Select port as "22" and connection type as "SSH" and click on open button. 5. Enter your credential and you are done :)