An Educational Tool for Formal Relational Database Query Languages

1993 ◽  
Vol 4 (2) ◽  
pp. 157-184 ◽  
Author(s):  
Suzanne Wagner Dietrich
2006 ◽  
Vol 24 (2) ◽  
pp. 129-184
Author(s):  
Jesús M. Almendros-Jiménez ◽  
Antonio Becerra-Terón

Author(s):  
Ibrahim Dweib ◽  
Joan Lu

In this chapter, the research background is discussed. This includes XML model, XML query languages, XML schema languages, XML Application Program Interface, XML documents types, XML data storage approaches, relational database model, and the similarities and differences between XML model and relational database model. Finally the chapter summary is given.


1982 ◽  
Vol 7 (2) ◽  
pp. 164-186 ◽  
Author(s):  
Peter Buneman ◽  
Robert E. Frankel ◽  
Rishiyur Nikhil

1999 ◽  
Vol 64 (4) ◽  
pp. 1689-1699 ◽  
Author(s):  
Jörg Flum ◽  
Martin Ziegler

AbstractWhen analyzing database query languages a roperty, of theories, the pseudo-finite homogeneity property, has been introduced and applied (cf. [3]). We show that a stable theory has the pseudo-finite homogeneity property just in case its expressive power for finite states is bounded. Moreover, we introduce the corresponding pseudo-finite saturation property and show that a theory fails to have the finite cover property if and only if it has the pseudo-finite saturation property.


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