𝗛𝗼𝘄 𝘁𝗼 𝗹𝗲𝗮𝗿𝗻 𝗦𝗤𝗟? Structured Query Language (SQL) is a domain-specific language used in programming and designed to manage data held in relational database management systems for many years. It was developed at IBM in the early 1970s. As relational databases are still very prevalent, any developer must use ... See more

SQL cheat sheet - Every JOIN explained: https://t.co/MZWLcotAZd