![]() In addition to commands for creating, editing and deleting data, SQL has elements for defining data structures and for querying databases. The actual SQL queries can be carried out with little effort, since only a few different commands have to be known for the majority of the statements. These systems enable access to the stored data via the universal SQL database language. Most of the existing database systems have SQL interfaces. SQL is standardized and can be used across platforms with many database systems. ![]() It is based on relational algebra and consists essentially of English language elements. The database language SQL is characterized by its simple syntax. ![]() Using SQL commands, data can be inserted, changed or deleted relatively easily. SQL or Structured Query Language, describes a language for communication with relational databases.
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