SQL

Skraćenica SQL znači Structured Query Language. Razvijen je 70-tih godina od strane firme IBM. SQL je standardni jezik sistema za upravljanje bazama podataka, tzv. RDBMS (engleski: Relational Database Management System). Sistemi za upravljanje bazama podataka su npr. Oracle, IBM DB2, Ingres , Microsoft SQLServer , Microsoft Access i mnogi drugi.

Standardne naredbe SQL-a su CREATE , INSERT INTO , UPDATE , DELETE , DROP.

SQL nudi i dobar sistem zaštite od neželjenog pristupa upotrebom korisničkih account-a.

Historija

SQL je bio jedan od prvih jezika za relacijski model Edgar F. Codda u njegovom poznatom radu iz 1970. "A Relational Model of Data for Large Shared Data Banks"[1], izdanom u junu 1970. u novinama Association for Computing Machinery (ACM), Communications of the ACM, iako su prvi koncepti već cirkulirali unutar samog IBM već 1969. SQL je postao je jedan od najčešće korištenih jezika za relacijske baze podataka[2][3] i danas se može reći da je Coddov model široko prihvaćen kao definitivni model za relacijske baza podataka (RDBMS ili RDMS).

Vanjski linkovi

Reference

  1. ^ Codd, E.F. (1970). "A Relational Model of Data for Large Shared Data Banks". Communications of the ACM. Association for Computing Machinery. 13 (br. 6): 377.–387. doi:10.1145/362384.362685. Arhivirano s originala, 12. 6. 2007. Pristupljeno 9. lipnja 2007.. Nepoznati parametar |month= zanemaren (pomoć); Provjerite vrijednost datuma u parametru: |access-date= (pomoć)
  2. ^ Chapple, Mike. "SQL Fundamentals". About.com: Databases. About.com. Arhivirano s originala, 25. 12. 2018. Pristupljeno 10. juna 2007.. Provjerite vrijednost datuma u parametru: |access-date= (pomoć)
  3. ^ "Structured Query Language (SQL)". International Business Machines. 27. oktobra 2006. Pristupljeno 27. oktobra 2006.. Provjerite vrijednost datuma u parametru: |access-date= i |date= (pomoć)[mrtav link]

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