The database technology is an adequate environment for the interaction. It may concern severalcomponents of the DBMS: (a) the data, (b) the queries, (c) the optimization techniques and (d) the devices. Atthe data level, correlations between attributes are extremely common in the real world relational data, and havebeen exploited to define materialized views and indexes. At the query level, interaction has been massivelystudied under the problem of multi-query optimization. The data warehouses with their star join queriesincrease the rate of the interaction. The query interaction has been used for selecting optimization techniquessuch as indexes. The interaction also contributes in selecting multiple optimization techniques such asmaterializ...
Distributed database technology is expected to have a significant impact on data processing in the u...
The materialization of views is an effective technique for optimizing queries. In this thesis, we pr...
It is known that optimization of join queries based on average selectivities is sub-optimal in highl...
The database technology is an adequate environment for the interaction. It may concern severalcompon...
La technologie de base de données est un environnement adéquat pour l’interaction. Elle peutconcerne...
The main goal of this thesis is to propose a set of approaches to optimize performance of data wareh...
Les entrepôts de données permettent le stockage et la consolidation, en une seule localité, d'une qu...
The emergence of the phenomenon Big-Data conducts to the introduction of new increased and urgent ne...
Traditional databases are facing problems of scalability and efficiency dealing with a vast amount o...
Techniques based on sharing data and computation among queries have been an active research topic in...
In this paper we present a new framework for studying parallel query optimization. We first note tha...
Les systèmes de stockage distribués sont massivement utilisés dans le contexte actuel des grandes ma...
Abstract. Query optimization is the most critical phase in query processing. In this paper, we try t...
La connaissance inter-entreprises permet à chaque société de se renseigner sur ses clients, ses four...
Data warehouses store large amounts of data usually accessed by complex decision making queries with...
Distributed database technology is expected to have a significant impact on data processing in the u...
The materialization of views is an effective technique for optimizing queries. In this thesis, we pr...
It is known that optimization of join queries based on average selectivities is sub-optimal in highl...
The database technology is an adequate environment for the interaction. It may concern severalcompon...
La technologie de base de données est un environnement adéquat pour l’interaction. Elle peutconcerne...
The main goal of this thesis is to propose a set of approaches to optimize performance of data wareh...
Les entrepôts de données permettent le stockage et la consolidation, en une seule localité, d'une qu...
The emergence of the phenomenon Big-Data conducts to the introduction of new increased and urgent ne...
Traditional databases are facing problems of scalability and efficiency dealing with a vast amount o...
Techniques based on sharing data and computation among queries have been an active research topic in...
In this paper we present a new framework for studying parallel query optimization. We first note tha...
Les systèmes de stockage distribués sont massivement utilisés dans le contexte actuel des grandes ma...
Abstract. Query optimization is the most critical phase in query processing. In this paper, we try t...
La connaissance inter-entreprises permet à chaque société de se renseigner sur ses clients, ses four...
Data warehouses store large amounts of data usually accessed by complex decision making queries with...
Distributed database technology is expected to have a significant impact on data processing in the u...
The materialization of views is an effective technique for optimizing queries. In this thesis, we pr...
It is known that optimization of join queries based on average selectivities is sub-optimal in highl...