About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 51. Chapters: SQL, ENGLISH, IBM Business System 12, Access query language, Language Integrated Query, ERROL, Harbour, Database Console Commands, EMML, XQuery, MultiDimensional eXpressions, Datalog, XBase, Lucid, SPARQL, Flagship compiler, Query by Example, QUEL query languages, HTSQL, SQR, Versa, SQL:2008, Java Persistence Query Language, SQL:2003, SAM76, Embedded SQL, XBase++, .QL, StreamSQL, Nonprocedural language, Contextual Query Language, RDF query language, C/AL, Pig, EJB QL, Data Mining Extensions, Object Query Language, Yahoo! query language, Chess Query Language, XSQL, Spatial query, DLV, IBM Query Management Facility, Information retrieval query language, R:BASE System, Event Programming Language, Serverproperty, PTQL, Facebook Query Language, Daplex, YQL. Excerpt: SQL (officially, often ), often referred to as Structured Query Language, is a database computer declarative language designed for managing data in relational database management systems (RDBMS), and originally based upon relational algebra and tuple relational calculus. Its scope includes data insert, query, update and delete, schema creation and modification, and data access control. SQL was one of the first commercial languages for Edgar F. Codd's relational model, as described in his influential 1970 paper, "A Relational Model of Data for Large Shared Data Banks." Despite not adhering to the relational model as described by Codd, it became the most widely used database language. SQL was developed at IBM by Donald D. Chamberlin and Raymond F. Boyce in the early 1970s. This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasi-relational database management system, System R, which a group at IBM San Jose Research Laboratory had developed during the 1970s. The acrony...
