MySQL table primary keys and unique indexes prevent multiple rows with the same index from being added to the table. If you try to insert a duplicate row with a ...

Jason Chun is a CNET writer covering a range of topics in tech, home, wellness, finance and streaming services. He is passionate about language and technology, and has been an avid writer/reader of ...

Your photos are probably taking up a lot of valuable storage on your iPhone. Here's how to clean it up. Sareena was a senior editor for CNET covering the mobile beat, including device reviews. She is ...

Many popular apps collect more of your personal data than necessary to function properly. These 20 apps quietly scoop up your photos, location, contacts, and more. Here's how to protect yourself. I ...

Julia Ries Wexler is a writer focusing on all things health and wellness. She has over 10 years of experience in health journalism, and though she has written about pretty much every health topic ...

A will ensures your assets are passed on to the heirs of your choosing. You can complete simple wills using software, but it might be better to hire an attorney if your finances are complex. In ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Doretha Clemons, Ph.D., MBA, PMP, has been a corporate IT executive and professor for 34 years. She is an adjunct ...

Pete Rathburn is a copy editor and fact-checker with expertise in economics and personal finance and over twenty years of experience in the classroom. Getty Images, Maskot Law is a big, service-based ...