Download or read book R alisation du noyau d un syst me de gestion de bases de donn es relationnelles written by Bernard Collardey and published by . This book was released on 1980 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book R alisation d un noyau de syst me de gestion de base de donn es relationnelle sous APL written by Michel Nakache and published by . This book was released on 1978 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nous présentons dans la première partie de ce document les principaux modèles de gestion de base de données, les objectifs des langages de manipulation de données, puis les précautions que doit prendre le concepteur d'un tel système dans un contexte d'accès concurrentiel, en vue de maintenir la qualité des informations. Après une brève description du langage APL orienté vers l'interrogation d'une base de données, nous présentons dans la deuxième partie du document différentes extensions à APL proposées ou réalisées pour une meilleure adaptation à un système de gestion de bases de données.La troisième partie décrit notre réalisation d'un point de vue externe puis interne. Cette réalisation a consisté à adjoindre au système APL un noyau de système indispensable à l'utilisation d'APL comme langage hôte d'un système de gestion de base de données. Nous présentons enfin un langage d'interrogation de base de données défini suivant les concepts du modèle relationnel.
Download or read book Comprendre et concevoir les bases de donn es relationnelles written by Serge Miranda and published by FeniXX. This book was released on 1988-01-01T00:00:00+01:00 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: De nombreux systèmes de gestion de base de données (SGBD) se disent relationnels, mais peu le sont vraiment au sens défini par les pères de ce concept : Codd et Date. « Comprendre et concevoir les bases de données relationnelles » est destiné à tous ceux (étudiants, ingénieurs, professionnels, curieux, etc.), qui veulent savoir exactement ce que recouvre ce terme de relationnel et connaître les méthodes de conception de telles bases de données. Après une description détaillée du modèle relationnel de Codd et Date, et une présentation des langages de requête relationnels, vous découvrirez les différentes méthodes de conception d'un schéma relationnel : approche synthétique (modèle entité/association, méthode de Codd et Date), approche analytique (principe de normalisation) et approche mixte. Vous trouverez, en annexe, un point sur les différents SGBD relationnels commercialisés sur micro, mini et gros ordinateurs, ainsi que plusieurs études de cas illustrant la construction d'un SGBD relationnel.
Download or read book CONCEPTION ET REALISATION D UN SYSTEME DE GESTION DE BASE DE DONNEES RELATIONNELLES POUR MICRO ORDINATEUR written by Patrice Bertrand and published by . This book was released on 1984 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: METHODE D'IMPLANTATION DU MODELE RELATIONNEL SUR UN MICRO-ORDINATEUR, PERMETTANT D'UNE PART UNE MANIPULATION SIMPLE ET, D'AUTRE PART, D'OBTENIR DES TEMPS DE REPONSE TRES COURTS EN INTERROGATION. LA TECHNIQUE EMPLOYEE REPOSE SUR UNE PRE-EVALUATION DES QUESTIONS LES PLUS FREQUENTES DONT LES RESULTATS SONT CONSERVES PAR LA SGBD, QUI Y REPERCUTE LES MISES A JOUR INTERVENUS SUR LES FICHIERS. IL UTILISE AU MIEUX LES POSSIBILITES DU SYSTEME D'EXPLOITATION PROLOGUE, NOTAMMENT EN CE QUI CONCERNE L'ACCES AUX FICHIERS, POUR LESQUELS UN MECANISME D'INDEX MULTI-CRITERES EST EMPLOYE. L'OPERATEUR DE JOINTURE A ETE ETENDU A PLUS DE DEUX FICHIERS POUR EN SIMPLIFIER LA DESCRIPTION. L'INTERFACE UTILISATEUR A ETE REALISE A L'AIDE DE VERBES NOUVEAUX INTRODUITS DANS LE LANGAGE BAL. LA GESTION DES NOMS, BASEE SUR L'UNICITE DANS CHAQUE CLASSE D'OBJET, PERMET D'EXPRIMER SIMPLEMENT LES INTERROGATIONS, AINSI QUE L'EMPLOI D'UNE METHODE D'EVALUATION DES QUESTIONS FIABLE ET PEU COUTEUSE
Download or read book R alisation d un syst me de gestion de base de donn es relationnel sur Macinthosh written by Marie-Hélène Meyer and published by . This book was released on 1987 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conception et r alisation d un algorithme d interrogation pour le syst me de gestion de bases de donn es relationnelles PARIOU written by Jean-Pierre MONDIÈRE and published by . This book was released on 1981 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CONCEPTION D UN SYSTEME DE GESTION DE BASES DE DONNEES RELATIONNELLES SYSTEME PARIOU written by JEAN-CLAUDE.. PERRAUD and published by . This book was released on 1980 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: ON DECRIT COMPLETEMENT LE SYSTEME. ON MET EN EVIDENCE LE NIVEAU CONCEPTUEL AVEC LE MODELE RELATIONNEL. ON DECRIT L'ORGANISATION DES DONNEES AVEC LES DIVERSES POSSIBILITES D'ACCES. ON PRESENTE L'INTERFACE UTILISATEUR AVEC LES MODALITES DE DEFINITION INTERACTIVE ET LES COMMANDES DE MANIPULATION. ON PRESENTE LE LANGAGE D'INTERROGATION QUE L'ON SITUE PAR RAPPORT AU LANGAGE ALPHA ET A L'ALGEBRE RELATIONNELLE
Download or read book Conception et r alisation d une application d administration d un syst me de gestion de bases de donn es relationnel en architecture client serveur written by Eric VALAT and published by . This book was released on 1992 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conception d un syst me de gestion de bases de donn es relationnelles syst me Pariou written by Jean-Claude Perraud (auteur d'une thèse de sciences.) and published by . This book was released on 1980 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book REBU O written by SITA.. OUEDRAOGO and published by . This book was released on 1983 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: PRESENTATION DES PROTOTYPES DE SGBD RELATIONNELS EXISTANTS, APRES AVOIR INTRODUIT LES CONCEPTS DE BASE RELATIFS AUX SYSTEMES DE GESTION DE BASE DE DONNEES ET AU MODELE RELATIONNEL N-AIRE. PROPOSITION D'UN SGBD TOTALEMENT RELATIONNEL REBU, DONT UNE VERSION REBU-0, CONSTITUANT LE NOYAU DU SGBD EST PRESENTEE DE FACON DETAILLEE
Download or read book Etude et r alisation d un syst me de gestion de bases de donn es avec contraintes d int grit written by Marcel FONDACCI and published by . This book was released on 1981 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Migration d un syst me de gestion de donn es h t rog ne vers une base de donn es relationnelles written by Olivier AGUSSOL and published by . This book was released on 1992 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book PASCAL written by and published by . This book was released on 1994 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CMA written by and published by . This book was released on 1995 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Workshop Expert Systems Their Applications written by and published by . This book was released on 1988 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technique Et Science Informatiques written by and published by . This book was released on 1989 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Your Mindful Compass written by Andrea Maloney Schara and published by . This book was released on 2013-12-01 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Your Mindful Compass" takes us behind the emotional curtain to see the mechanisms regulating individuals in social systems. There is great comfort and wisdom in knowing we can increase our awareness to manage the swift and ancient mechanisms of social control. We can gain greater flexibility by seeing how social controls work in systems from ants to humans. To be less controlled by others, we learn how emotional systems influence our relationship-oriented brain. People want to know what goes on in families that give rise to amazing leaders and/or terrorists. For the first time in history we can understand the systems in which we live. The social sciences have been accumulating knowledge since the early fifties as to how we are regulated by others. S. Milgram, S. Ashe, P. Zimbardo and J. Calhoun, detail the vulnerability to being duped and deceived and the difficulty of cooperating when values differ. Murray Bowen, M.D., the first researcher to observe several live-in families, for up to three years, at the National Institute of Mental Health. Describing how family members overly influence one another and distribute stress unevenly, Bowen described both how symptoms and family leaders emerge in highly stressed families. Our brain is not organized to automatically perceive that each family has an emotional system, fine-tuned by evolution and "valuing" its survival as a whole, as much as the survival of any individual. It is easier to see this emotional system function in ants or mice but not in humans. The emotional system is organized to snooker us humans: encouraging us to take sides, run away from others, to pressure others, to get sick, to blame others, and to have great difficulty in seeing our part in problems. It is hard to see that we become anxious, stressed out and even that we are difficult to deal with. But "thinking systems" can open the doors of perception, allowing us to experience the world in a different way. This book offers both coaching ideas and stories from leaders as to strategies to break out from social control by de-triangling, using paradoxes, reversals and other types of interruptions of highly linked emotional processes. Time is needed to think clearly about the automatic nature of the two against one triangle. Time and experience is required as we learn strategies to put two people together and get self outside the control of the system. In addition, it takes time to clarify and define one's principles, to know what "I" will or will not do and to be able to take a stand with others with whom we are very involved. The good news is that systems' thinking is possible for anyone. It is always possible for an individual to understand feelings and to integrate them with their more rational brains. In so doing, an individual increases his or her ability to communicate despite misunderstandings or even rejection from important others. The effort involved in creating your Mindful Compass enables us to perceive the relationship system without experiencing it's threats. The four points on the Mindful Compass are: 1) Action for Self, 2) Resistance to Forward Progress, 3) Knowledge of Social Systems and the 4) The Ability to Stand Alone. Each gives us a view of the process one enters when making an effort to define a self and build an emotional backbone. It is not easy to find our way through the social jungle. The ability to know emotional systems well enough to take a position for self and to become more differentiated is part of the natural way humans cope with pressure. Now people can use available knowledge to build an emotional backbone, by thoughtfully altering their part in the relationship system. No one knows how far one can go by making an effort to be more of a self-defined individual in relationships to others. Through increasing emotional maturity, we can find greater individual freedom at the same time that we increase our ability to cooperate and to be close to others.
