Researching of database and it's developing trend
Guo Chen · Basic Sciences Journal of Textile Universities · 2001
The development of database model experienced hiberarchy, netted, relation model, proceed to object oriented model. The standardization of SQL experienced SQL89, SQL92,SQL99, the perfect of SQL marked the progress and the mature of database technical. The function of Database manipulation was merged into every advance Language. Whether offering powerful, convenience develop and manage tools become one of important target of program design Language. With the developing of database, the research area of database was expanded, proceeding to intellective database, data warehouse, distributed three dimensional database--digital earth.