Essays about: "Query optimisation"
Found 4 essays containing the words Query optimisation.
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1. Comparing database optimisation techniques in PostgreSQL : Indexes, query writing and the query optimiser
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Databases are all around us, and ensuring their efficiency is of great importance. Database optimisation has many parts and many methods, two of these parts are database tuning and database optimisation. These can then further be split into methods such as indexing. READ MORE
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2. Implementing the GraphQL Interface on top of a Graph Database
University essay from Linköpings universitet/Databas och informationsteknik; Linköpings universitet/Tekniska fakultetenAbstract : Since becoming an open source project in 2015, GraphQL has gained popularity as it is used as a query language from front-end to back-end, ensuring that no over-fetching or under-fetching is performed. While the query language has been openly available for a few years, there has been little academic research in this area. READ MORE
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3. Optimisation of Ad-hoc analysis of an OLAP cube using SparkSQL
University essay from Uppsala universitet/Avdelningen för beräkningsvetenskapAbstract : An Online Analytical Processing (OLAP) cube is a way to represent a multidimensional database. The multidimensional database often uses a star schema and populates it with the data from a relational database. READ MORE
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4. Comparison and Implementation of Query Containment Algorithms for XPath
University essay from KTH/Skolan för datavetenskap och kommunikation (CSC)Abstract : This thesis investigates the practical aspects of implementing Query Containment algorithms for the query language XPath. Query Containment is the problem to decide if the results of one query are a subset of the results of another query for any database. READ MORE