%0 Journal Article
%T The Present Situation of SQL and Its Research and Development<br>SQL的现状及其研究与发展
%A Hu Zhiping & Mai Zhongfan
%A <br>胡志平
%A 麦中凡
%J 计算机科学
%D 1994
%I 
%X The research and development of SQL technology is still a focus in the field of database. This paper summarizes the work on SQL standard and its present situation.and discusses the continuous functional modifications of database' s improviment in the mean time. Based on most people' s ideas, we emphisize the later research on SQL3 about procedure language, type system and query technology.
%K SQL
%K Database
%K Standard
%K Relation
%K Object
%K Type
%K Model<br>SQL语言
%K 现状
%K 研究
%K 发展
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=D799B645D458B48B3288110AE72E78D8&yid=3EBE383EEA0A6494&vid=659D3B06EBF534A7&iid=E158A972A605785F&sid=F4B561950EE1D31A&eid=987EDA49D8A7A635&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=0