100+ Group bys PowerPoint (PPT) Presentations, Group bys PPTs

Group bys - PowerPoint PPT Presentation

Computing the cube

Computing the cube. Abhinandan Das CS 632 Mar 8 2001. On the Computation of Multidimensional Aggregates. Sameet Agarwal, Rakesh Agrawal, Prasad Deshpande, Ashish Gupta, Jeffrey Naughton, Raghu Ramakrishnan & Sunita Sarawagi -- VLDB 1996.

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693 views • 60 slides

CONGRESSIONAL SAMPLES FOR APPROXIMATE ANSWERING OF GROUP BY QUERIES

CONGRESSIONAL SAMPLES FOR APPROXIMATE ANSWERING OF GROUP BY QUERIES Swaroop Acharya,Philip B Gibbons, VishwanathPoosala By Agasthya Padisala Anusha Reddy Rachapalli Muni. OUTLINE: 1.INTRODUCTION 2.AQUA SYSTEM 3.REQUIREMENTS ON GROUP BY ANSWERS 4.SOLUTIONS 5.REWRITING 6.EXPERIMENTS

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363 views • 25 slides

Congressional Samples for Approximate Answering of Group-By Queries

Congressional Samples for Approximate Answering of Group-By Queries. Swarup Acharya Phillip B. Gibbons Viswanath Poosala Presented By: Muhammed Z. Miah. Introduction. Limitations of Uniform Sampling Presence of skewed data in aggregate values Effect of low selectivity in selection queries

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259 views • 14 slides

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Group bys - PowerPoint PPT Presentation

Computing the cube

CONGRESSIONAL SAMPLES FOR APPROXIMATE ANSWERING OF GROUP BY QUERIES

Congressional Samples for Approximate Answering of Group-By Queries