We propose simple,yet powerful, methods to generate SQL code to returnaggregated columns in a horizontal tabular layout, returning aset of numbers instead of one number per row. This new class offunctions is called horizontal aggregations. Horizontalaggregations build data sets with a horizontal ...
The Data Man- ager (DM) offers data management typical of a DBMS on a different networked con- text. Fig. 1. NPDM Modules Tuple Management: the NPDM implements parallel processing of tuples over the network. Nodes participating in the storage and processing of complex queries are expected ...
preparation and integration. In particular, FRAQL offers the following features: transparent access to heterogeneous sources ranging from DBMS like Oracle to structured docu- ments like XML files, user-defined functions and aggregates, whereas Java and C++ are used as implementation lan- ...
Aggregation : In SQL we have functions e.g. Sum , min , max , count etc for aggregating the data. We can use these functions to create objects in universe for aggregating at database level. Also when defining objects in universe, we have options to defined how BO Server should do aggr...
Summary information is aggregated data that is related to information being stored and managed by the DBMS. In SQL, summary information is retrieved using aggregation functions and a GROUP BY clause on SELECT operations. However, SQL as a means for getting at summary information suffers in all ...
In the case of serving an OLAP server, the Aggregation Server of the present invention focuses on performing these two functions in a high performance manner (i.e. aggregating and storing base data, originated at the Data Warehouse, in a multidimensional storage (MDDB), and providing the ...
Incremental Aggregation on Multiple Continuous Queries - Jin, Carbonell - 2006 () Citation Context ...y update are achieved by DBMS indexing techniques, and the compact storage is achieved by following the database design methodologies. We focus on select-join-project queries in this paper. ...
Incremental Aggregation on Multiple Continuous Queries - Jin, Carbonell - 2006 () Citation Context ...y update are achieved by DBMS indexing techniques, and the compact storage is achieved by following the database design methodologies. We focus on select-join-project queries in this paper. ...
, extension to SQL standard aggregate functions to compute horizontal aggregations We propose two fundamental methods to evaluate horizontal aggregations: CASE: Exploiting the programming CASE construct; SPJ: Based on standard relational algebra operators (SPJ queries); which is offered by some DBMSs....
Shatdal, Order Based Analysis Functions in NCR Teradata Parallel RDBMS, Abstract Proceeding ofEDBT 2000. Shatdal, Order Based Analysis Functions in NCR Teradata Parallel RDBMS, Abstract Proceeding of EDBT 2000 pp. 219-223. Albrecht et al., An Architecture for Distributed OLAP, Abstract, 1998...