200331· Managing an Internet protocol network requires collecting and analyzing network data, such as flow-level traffic statistics. Such analyses can typically be expressed as OLAP …
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20141110· An emerging challenge in large-scale DSPSs is to efficiently process multiple continuous aggregate queries. To process a continuous aggregate query, each source node …
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AI generated definition based on: An Industrial IoT Approach for Pharmaceutical Industry Growth, 2020. During query processing, the planner uses the most specialized source of information …
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2020527· Context and Motivation: Following the Linked Open Data principles (LOD), data providers published billions of RDF triples [4, 15].Executing SPARQL aggregate queries on the …
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202563· Structured Query Language (SQL) is a universal computer language used to manage relational databases, which businesses use to store data in tables of columns and …
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Queries were this method works have recently been identified as the so-called 0MA (zero-materialisation aggregate) queries (Gottlob et al., a, b) (a formal definition is given in …
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202495· Handy Tips for Aggregate Queries . Now you know the basics of using SQL‘s aggregate functions. Here are some handy tips: Use Aliases. So in summary, SQL‘s …
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well as the query processing techniques to handle these exten-sions.(Chapter5). The survey concludes in Chapter 6 with a brief survey of recent applications of Datalog, in the domains of …
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The aggregate functions in SQL are used in various aspects like with join, handling NULL values, in sub queries, nested aggregate functions, with case statements, and in real-world applications, etc. Best Practices for …
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Definition of Query processing: Is to transform a query in a high level declarative language (such as SQL) into a correct and efficient execution strategy. It includes query decomposition …
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126· Query processing in a distributed database management system requires the transmission of data between the computers in a network. A distribution strategy for a query is …
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202431· In this section, we will give the definition of the problem and review the interval partition method. 2.1 Problem Definition. We consider aggregate queries on continuous …
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factoid query processing will seriously impact the performance of aggregate queries. In this paper, we propose a “sampling-estimation” model to answer aggregate queries over KGs, which is …
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A first-order language with real polynomial arithmetic and aggregation operators (count, iterated sum and multi:ply), which is well suited for the definition of aggregate queries involving …
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2019522· The article includes an introduction to the approximate query processing concept, a definition of the available functions and their usage, and a generic test script to …
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719· We will show that, in a careful manner, aggregate query answers can be estimated efficiently during the process of aggregate query. The remainder of this paper is …
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71· Definition 4 Approximate aggregate query. An approximate aggregate query is a tuple Q = (q, And to processing a query in parallel on large-scale systems, the shuffling or …
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Approximate query processing (AQP) is an alternative way that returns approximate answer using information which is similar to the one from which the query would be answered. It is designed …
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200331· Managing an Internet protocol network requires collecting and analyzing network data, such as flow-level traffic statistics. Such analyses can typically be expressed as OLAP …
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2015310· By Definition 2, the duplicates of an identical object appearing in OS (s) of a node s are collected at coordinator (OS (s)). When the coordinator receives the potential …
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The query optimizer uses the query settings as an additional input during query planning, which affects the plan selected to run the query. You can also use query settings to block a query …
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202081· Vision: Depicted at Fig. 1 is our vision for an aggregate analytics learning & prediction system that is light-weight, stored on an Analyst’s Device (AD) and adaptive to …
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Definition of Query processing: Is to transform a query in a high level declarative language (such as SQL) into a correct and efficient execution strategy. It includes query decomposition …
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201391· A bit vector storage structure including five attribute encoding schemes, bit file storage and organization are introduced in Section 2 and different aggregate query processing …
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2024530· Regarding query processing, the term "selection" operation denotes fetching particular rows from a database table that fulfill some given condition or conditions.Why is this …
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An aggregate function is a function that performs a calculation on a set of values, and returns a single value. BY clause of the SELECT statement. The GROUP BY clause splits the result-set …
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