The main goal of this thesis is to propose a set of approaches to optimize performance of data warehouses and assist the data warehouse administrator (DWA) to well perform this optimization. Our approaches use three optimization techniques: primary and derived horizontal partitioning and bitmap join indexes (BJI). First, we propose a partitioning approach, which takes into account both the performance (reducing the response time) and manageability (controlling the number of fragments). Then, we propose a greedy approach that selects a set of BJI. The use of FH and BJI independently cannot exploit the various similarities existing between these two techniques. We propose an approach for multiple selection of FH and BJI. This approach can be ...
The time necessary for data processing is becoming shorter and shorter nowadays. This thesis present...
Abstract:- On-line analytical processing (OLAP) queries are strongly affected by the amount data nee...
As far as we know, in the open scientific literature, there is no generalized framework for the opti...
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...
Data warehouses store large amounts of data usually accessed by complex decision making queries with...
Data warehouses form the basis of decision-support systems. They help integrating the production dat...
Abstract. There has been a lot of work to optimize the performance of rela-tional data warehouses. T...
The database technology is an adequate environment for the interaction. It may concern severalcompon...
With the explosion of the size of data warehousing applications, the horizontal data partitioning is...
A huge number of SCANIA trucks and busses are running on the roads. Unlike the trucks and buses of t...
Designing a parallel data warehouse consists of choosing the hardware architecture, fragmenting the ...
Data warehousing gives frameworks and means for enterprise administrators to methodically prepare, c...
Abstract The thesis Warehouse Optimization BEDNARFMT was focused on warehouse analysis. The main ...
Efficient query processing is a critical requirement for data warehousing systems as decision suppor...
The time necessary for data processing is becoming shorter and shorter nowadays. This thesis present...
Abstract:- On-line analytical processing (OLAP) queries are strongly affected by the amount data nee...
As far as we know, in the open scientific literature, there is no generalized framework for the opti...
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...
Data warehouses store large amounts of data usually accessed by complex decision making queries with...
Data warehouses form the basis of decision-support systems. They help integrating the production dat...
Abstract. There has been a lot of work to optimize the performance of rela-tional data warehouses. T...
The database technology is an adequate environment for the interaction. It may concern severalcompon...
With the explosion of the size of data warehousing applications, the horizontal data partitioning is...
A huge number of SCANIA trucks and busses are running on the roads. Unlike the trucks and buses of t...
Designing a parallel data warehouse consists of choosing the hardware architecture, fragmenting the ...
Data warehousing gives frameworks and means for enterprise administrators to methodically prepare, c...
Abstract The thesis Warehouse Optimization BEDNARFMT was focused on warehouse analysis. The main ...
Efficient query processing is a critical requirement for data warehousing systems as decision suppor...
The time necessary for data processing is becoming shorter and shorter nowadays. This thesis present...
Abstract:- On-line analytical processing (OLAP) queries are strongly affected by the amount data nee...
As far as we know, in the open scientific literature, there is no generalized framework for the opti...