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 data
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- ...
Using array map, filter and reduce in MongoDB aggregation pipeline, If you work with javascript, the chances of you are using array methods like map, filter and reducer today are really great. All simplicity offered by javascript higher-order functions makes our code more readable and concise,...
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 ...
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...
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 ...
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....
but rather performed only to assign a unique code to each group combination. The unique code can be generated using the generate-unique or serial number functions. When the original query is performed during run-time operations, an extra join of the dimension is added with the result of the ...