SQL
Qiyofa
SQL (Structured Query Language)[1] [2][3] – maxsus tillar sirasiga kiradi. SQL domenga xos til hisoblanib, dasturlashda keng foydalaniladi. Yana ham aniq aytadigan boʻlsak, ushbu til orqali foydalanuvchilar maʼlumotlar omborini boshqarish tizimida saqlanadigan maʼlumotlarni boshqarishlarida kerak boʻladi. Bu tilni dastlab kashf etishgan vaqtida SQL tilini relatsion algebra hamda uch tomonlama relatsion hisoblashlarga moʻljallashgan edi. SQL tili dunyo tamaddunida 1974-yilda paydo boʻldi. Bu oddiy voqea emas, balki "buyuk kashfiyot" ham edi. Uning muallifi Donald D. Chamberlin va Raymond F. Boyce hisoblanadi. Shuningdek, Chamberlin nafaqat SQL tilini yaratgan, balki IBM sistemasi X Query orqali ham mashhur.
Manbalar
Tashqi havolalar
- 1995 SQL Reunion: People, Projects, and Politics, by Paul McJones (ed.): transcript of a reunion meeting devoted to the personal history of relational databases and SQL.
- American National Standards Institute. X3H2 Records, 1978–1995 Charles Babbage Institute Collection documents the H2 committee's development of the NDL and SQL standards.
- Oral history interview with Donald D. Chamberlin Charles Babbage Institute In this oral history Chamberlin recounts his early life, his education at Harvey Mudd College and Stanford University, and his work on relational database technology. Chamberlin was a member of the System R research team and, with Raymond F. Boyce, developed the SQL database language. Chamberlin also briefly discusses his more recent research on XML query languages.
- Comparison of Different SQL Implementations This comparison of various SQL implementations is intended to serve as a guide to those interested in porting SQL code between various RDBMS products, and includes comparisons between SQL:2008, PostgreSQL, DB2, MS SQL Server, MySQL, Oracle, and Informix.
- Event stream processing with SQL - An introduction to real-time processing of streaming data with continuous SQL queries
- BNF Grammar for ISO/IEC 9075:2003, part 2 SQL/Framework