what is primary key?

Thank you for the tremendous response to the Quizzr - our free quizzing platform for everyone. Following is the list of top scorers of Quizzr's Quiz that took place on...

The Employment Provident Fund Organization (EPFO) has come with good initiative. From next month onwards if someone changes the job, his PF account will be automatically transferred to the new...

With the accelerated industrial progress of our modern world comes the bane of disposal of environmentally harmful wastes as synthetic dye pollutants, released at a rate of nearly 300,000 tonnes...

Quote: To some, this notion will seem ridiculous—but to others, it will seem true beyond doubt. Paul Watson from Sea Shepherd leans toward the latter category, and it’s quite evident...

well i actually happen to have a trumpet whose valve keys are stuck. on youtube i got to learn that in order to free those valves, i need to purchase...

Just wondering if we have any badminton players in our community. I've been playing badminton for the last one year and I absolutely love it. Maybe we could learn from...

I've began facing a strange issue on the BSNL network (FTTH). Some of the sites that I used to access daily (including some of our own test servers) aren't accessible...

(Sent by Venu Vedam from UK) It seems it is catching up in India Quote: British police are warning parents about the dangers of a sick social media 'game' that's...

here is a real life problem: a rectangular plate, weighing around 600 grams has to be rotated at around 400 rpm about its geometric centre (centre of gravity). now how...

Gionee India has unveiled a new smartphone device A1 Lite- latest in its A1 series lineup. The device is big on the camera features with a robust battery support; as...

Isha Ambani, one of the directors at Reliance Jio has confirmed via tweet that much awaited Jio Fiber service will launch in Diwali in about 100 cities. She also confirmed...

Today, on searching the paid online trainings/certifications for Docker & Kubernetes, I found this awesome website named linuxacademy. Surely, from interface perspective, it looks neat and fine. Even reviews are...

A CubeSat is a miniaturized satellite used for space research that measures 10cmx10cmx10cm and weights just about 1.3 Kg. Researchers at the Purdue University have developed a new kind of...

Since last tuesday I am facing a strange issue with BSNL I am not able to connect with aws instance through port 22 Is anyone else facing same problem?

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Quote: The lighter the vehicle, the farther it travels on a gallon of fuel. Thatâ&#128;&#153;s the driver behind four new projects designed to reducing the weight of vehicle components. The...

Facebook has decided to train about 25K Women entrepreneurs in India focusing on Women Entrepreneurship. The Orissa State government in collaboration with Facebook has decided train Small/medium entrepreneurs and Women...

Binghamton University researchers have developed a new kind of 'microbial fuel cell', a battery that deploys saliva to function in conditions where normal batteries can't. The battery is a result...

Confirming#-Link-Snipped-#Sharp corporation, native to Japan, has unveiled its much-anticipated smartphone device dubbed Aquos S2. The handset with metal design sports a near bezel-less display with a 5.5-inch display (2048 x...