Pr oc . o f t he 4 th In tl . W or ks ho p on D at ab as e Pr og ra m m in g La ng ua ge s ( D BP
نویسندگان
چکیده
This paper describes a new object oriented model and query algebra that will be used as an input language for the query optimizers that are being built as a part of the EREQ project The model adopts a uniform view of objects and values and separates syntactic semantic and implementa tion concerns The algebra addresses issues of type de ned equality and duplicate elimination as well as extensions to bulk types other than sets
منابع مشابه
Otitis Media and Speech and Language: A Meta-analysis of Prospective Studies
Objective. Considerable controversy surrounds whether a history of otitis media with effusion (OME) in early childhood causes later speech and language problems. We conducted a meta-analysis of prospective studies to determine: 1) whether a history of OME in early childhood is related to receptive language, expressive language, vocabulary, syntax, or speech development in children 1 to 5 years ...
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( * ) I n t r o d u c t i o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i n t r o . s t ( * * ) S e n s e a n d N o n s e n s e o f E x a m p l e s . . . . . . . . . . n o n s e n s e . s t ( * * ) E x p l a n a t i o n s w / o e x a m p l e s . . . . . . . . . . . . . . . e x p l a n a t i o n . s t ( * ) E x a m p l e s i n D a i l y P r a c t i s . . . . . . . . . . . . . . ....
متن کاملAppendix for Day 4
Ty pe s I a nd II e rr or s, po w er , a nd m ul tip le in fe re nc e. S om e sp ec ifi cs to c on si de r: a. If y ou w ill b e ga th er in g da ta , d ec id e be fo re g at he ri ng th e da ta : Th e qu es tio ns y ou a re tr yi ng to a ns w er . H ow y ou w ill g at he r t he d at a an d th e in fe re nc e pr oc ed ur es y ou in te nd to u se to h el p an sw er y ou r q ue st io ns . o Th es...
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to c an ce r, C on or c on fr on ts a d if fe re nt t yp e of m on st er w ho t ak es o n th e fo rm o f th e ye w tr ee n ea r hi s be dr oo m w in do w . T he m on st er te lls h im th re e di ff er en t s to ri es , e ac h re ve al in g th e pr ob le m w it h m ak in g as su m pt io ns , a nd th en d em an ds th at C on or te ll hi s ow n st or y. W hi le C on or is fa ci ng d ow n th e m on...
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A ny a fi nd s a de ad b od y an d a ne w b es t fr ie nd — a gh os t na m ed E m ily . A t fi rs t A ny a an d Em ily a re c lo se , bu t A ny a re al iz es t ha t so m e pa rt s of t he s to ry E m ily t ol d ab ou t he r de at h do n’ t ad d up . A s A ny a st ru gg le s to s or t ou t fa ct f ro m fi ct io n, s he m us t al so fi gu re o ut l if e in h ig h sc ho ol . Em ily b eg in s to p ...
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