Substring returns characters from a string, starting from the specified position, or index. Index values start with the number 0. Examples: substring('This_is_a ...

When Motorola introduced its first mobile phone in 1984, the company hoped for a buying frenzy. But even the best marketers couldn’t have predicted the success of mobile phones. Today, mobile phones ...

In search of smooth skin, you’ll hear a lot of chatter about “boosting collagen,” but what does that mean exactly? “Collagen is the main structural protein in the skin, which acts like scaffolding and ...