Difference Between Oracle, MySQL and Sql Server

Introduction:

In 1980s, relational database management systems have become the standard database type for a variety of industries.  These systems are based on the relational model that organizes data into groups of tables referred to as relations. There are three popular RDBMS: Oracle, MySQL and SQL Server. The following comparison should help you understand the differences between these systems and provide you information that will help you to make a decision.

Difference Between Oracle, My Sql and Sql Server:

Properties	Microsoft SQL Server	MySQL	Oracle
Description	Microsoft RDBMS	Widely used and open source RDBMS	Widely used RDBMS
Ranking	Rank 3	Rank 2	Rank 1
Score	1207	1309	1502
Owner	Microsoft	Oracle	Oracle
Initial Release	1989	1995	1980
License	Commercial	Open Source	Commercial
Development Language	C++	C and C++	C and C++
Supported Operating Systems	Windows	Free BSD Linux OS X Solaris Windows	AIX HP-UX Linux OS X Solaris Windows Z/OS
Relational DBMS	Yes	Yes	Yes
Supports SQL	Yes	Yes	Yes
Access Methods	OLE DB Tabular Data Stream ADO.NET JDBC ODBC	ADO.NET JDBC ODBC	ODP.NET Oracle Call Interface JDBC ODBC
Supported Programming Languages	.Net Java PHP Python Ruby Visual Basic	Ada C C# C++ D Eiffel Erlang Haskell Java Objective-C OCaml Perl PHP Python Ruby Scheme TCL	C C# C++ Clojure Cobol Eiffel Erlang Fortran Groovy Haskell Java JavaScript Lisp Objective C OCaml Perl PHP Python R Ruby Scala TCL Visual Basic
Server-Side Scripts	Yes	Yes	Yes
Triggers	Yes	Yes	Yes
Partitioning Methods	Horizontal Partitioning	Horizontal Partitioning	Horizontal Partitioning
Replication Methods	Depending on the SQL-Server Edition	Master-Master Replication and Master-Slave Replication	Master-Master Replication and Master-Slave Replication
Concurrency	Yes	Yes	Yes
Durability	Yes	Yes	Yes

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Microsoft Finger Print Reader / U are U Finger Print Reader

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Android Technology / What is Android?

What is Android?

Android is a Linux based operating system for mobile devices like: smartphones and tablets.

Android OS is specially developed for applications. There are more than 4,00,000 apps in Android market. It is an open source.

Foundation of an Android

Android, Inc. found in Palo alto in California united states by Andy Rubin. In October 2003 Google acquired Android, Inc. in August 2005.

The open handset alliance, a group of several companies was formed in 5th November 2007. Android Beta SDK was released in 12 November 2007.

Features of Android

It can run multiple apps at the Same Time.

It also supports optimized graphics VGA, 2D graphics and 3D graphics.

It has a better app market.

It makes you to change your settings faster.

It provides you more options to fit your budget.

It keeps information visible on your home screen.

It also supports Java applications.

Versions of an Android

Android 1.0                                        23 September 2008

Android 1.1                                        09 February 2009

Android 1.5 (Cupcake)                       30 April 2009

Android 1.6 (Donut)                           15 September 2009

Android 2.0 (Éclair)                            26 October 2009

Android 2.2 (Froyo)                           20 May 2010

Android 2.3 (Gingerbread)                 06 December 2010

Android 3.0 (Honeycomb)                 10 May 2011

Android 4.0 (Ice cream sandwich)      19 October 2011

Android 4.1 (Jelly Bean)                     13 July 2012

What is Android Market?

Android Market is the online software store developed by Google for Android devices.

It is used to browse and download apps published by third party developer.

There are more than 4,00,000 apps available for Android.

Android has several famous apps like voice action, sky map, place directory, GPS, etc.               

How to Connect Android Phone to Computer?

We can connect Android phones to PC by USB cable or via WiFi. 

 
Please make sure you install all the computer drivers required.

Connecting your Android phone to the computer via USB cable:

Step 1 : Enable USB Debugging  

This step is absolutely essential to connect any Android device.

For Android 2.3                Settings > Applications > Development



For Android 4                   Settings > Developer options



For Android 4.2               * The “Developer Options” menu item is hidden
                                  1. Go to Settings -> About Phone.
                                  2. Go to “Build Number” at the end of the Scroll list.
                                  3. Tap on “Build Number” repeatedly (7 times).
                                  4. You are now a “Developer”, go back to the Setting page.
                                  5. You should see Developer Option menu item in setting list now.
                                  6. Open Developer Options and check USB debugging > OK

Step 2 : In some cases Stay awake option has to be enabled (if available).

Step 3 : Install the drivers and connect the phone to the computer.

Step 4 : Make sure that the phone is not set in Mass Storage mode

If an Attention dialog appears, click the OK button to confirm.

Now you are done.