01212naa a2200193 a 450000100080000000500110000800800410001910000200006024500900008026000090017030000160017950000410019552005480023665300310078465300450081565300460086070000160090677300960092210030092010-07-13       1995    bl uuuu     u00u1 u    #d1 aSILVA, S. D. da  aUm modelo de transação para sistemas de gerência de bancos de dados heterogêneos.  c1995  ap. 101-115.  aSBBD'95. Editado por Décio Fonseca.  aA transaction model for heterogeneous database management systems is presented. The model incorporates concepts from the traditional flat transaction model as well as from new approaches such as compensatable, compensating and vital transactions. We formally define the model and specify the operational semantics for its components. We also present an overview of how transactions of this model are managed by the transaction of this model are managed by the transaction manager of an heterogeneous database management system being developed.  aBase de dados heterogênea  aHeterogeneous database management system  aSistema de gerenciamento de base de dados1 aMELO, R. N.  tIn: SIMPÓSIO BRASILEIRO DE BANCO DE DADOS, 10., 1995. Recife. Anais... Recife: UFPe, 1995.