Command Prompt Tutorial

< Previous Commands (Cont. 3 )  Searching using the findOne() We can search for a particular attribute of a document using the findOne(). Drop a collection To find the available collections in the current db - show collections  ...

Command Prompt Tutorial

< Previous Commands (Cont. 2 )  You can even declare variables which may contain whole set of data.  Now after defining the variable “doc”, we have to save it explicitly, by applying the save command over the data collection.  Now, if...

Command Prompt Tutorial

< Previous Commands (Cont. 1 ) You can check the no. of documents in a collection by using > db.data.count() Lets insert some documents into the collection "data", we have created Just to clarify, our database name is data and our collection name is also data.  (...

How to remove one OS from multiple OS list? Dual Boot

How to delete one OS from Dual Boot Partition ALWAYS BACKUPS YOUR FILES. If you are using Windows, then go through the following steps:- Click Windows+R Type cmd In cmd type diskmgmt Select the partition you created for the Windows you want to remove. Example:- If you want to remove Windows 8 then, check which local drive have windows 8 installed Right click over that partition and click 'Format' A...

Oculus Rift... It is a new virtual reality (VR) headset designed specifically for video games that will change the way you think about gaming forever. With an incredibly wide field of view, high resolution display, and ultra-low latency head tracking, the Rift provides a truly immersive...

Flexible Speakers : A loudspeaker, which is less than 0.25mm thick, is the latest invention in technology presented by engineers from University of Warwick.  The device is flexible and can be easily hung up a wall in an apartment. Due to its specific technique of producing sound,...