Why SQL have high demands in jobs ?

Question

According to 2016 data SQL is number one in programming job .

Answer 1

might bcz in most places like big libraries , companies... etc , we need something to manage large databases

Answer 2

Database management is essential in almost every single company, be it Tech or non-Tech. Since every company has to store a lot of data , for which they use databases. SQL is used for database management, so SQL has a high demand, since companies need people who can manage databases.

Answer 3

It's used in almost all of web storage/website databases.