Web Reference: Mar 17, 2026 · Structured Query Language (SQL) is the standard language used to interact with relational databases. It allows users to store, retrieve, update and manage data efficiently through simple commands. Introduced in the 1970s, SQL offered two main advantages over older read–write APIs such as ISAM or VSAM. Firstly, it introduced the concept of accessing many records with one single command. Secondly, it eliminates the need to specify how to reach a record, i.e., with or without an index. Why is SQL important? Structured query language (SQL) is a popular query language that is frequently used in all types of applications. Data analysts and developers learn and use SQL because it integrates well with different programming languages.
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