Migration from MS-SQL to Firebird by MarceloLopezRuiz

By MarceloLopezRuiz

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D. MURR, C l a u d i o WALTER J o s e Ì . V. d e CASTILHO, TO C l e s i o S . d o s SANTOS a n d U n i v e r s i d a d e F e d e r a l do Rio Grande do Sul C u r s o d e P o s g r a d u a c a o em C i e n c i a d a C o m p u t a c a o PO Box 1 5 0 1 - CEP 9 0 . 0 0 1 Porto Alegre RS BRAZIL The p a p e r p r e s e n t s a method and a s e t of t o o l s f o r t h e automated design of d a t a b a s e s f o r n o n c o n v e n t i o n a l a p p l i c a t i o n s , b a s e d on a conceptual modelling approach, which follows t h e E-(for Entity) model.

1 . Introductio n Th e objectiv e of Informatio n System s modellin g is th e representatio n of ou r knowledg e abou t th e portio n o f interes t of th e rea l world . Thi s representatio n ca n b e don e usin g eithe r a conceptua l mode l o r a logi c model . Th e forme r is declarativ e an d define s th e Informatio n Syste m (IS ) independentl y o f its interna l structure . Th e latte r is procedura l an d define s th e IS in term s o f th e neede d operations . 42 As will b e explaine d in sectio n 2 , conceptua l modellin g ca n b e classifie d int o operationa l an d deductive .

The p r o d u c t i o n management t e r m s are defined in [8]. A " p a r t " can be a "purchased p a r t " o r a "manufactured p a r t " . A " p a r t " is represented by the "part number", the "part description" and the "inventory". A " p u r c h a s e d r e q u i s i t i o n " i s d e s c r i b e d by " p u r c h a s e d part", "due date" and "purchase quantity". The graphical representation d i f f e r e n c e b e t w e e n t h e f i r s t component t y p e and t h e o t h e r s means t h a t the " p u r c h a s e d p a r t " e x i s t s i n d e p e n d e n t l y o f a " p u r c h a s e r e q u i s i t i o n " .

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