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Data hierarchy refers to the systematic organization of data, often in a hierarchical form. Data organization involves characters, fields, records, files and so on. [1] [2] This concept is a starting point when trying to see what makes up data and whether data has a structure. For example, how does a person make sense of data such as 'employee ...
A record is a collection of fields, with each field containing only one value. The type of a record defines which fields the record contains. The hierarchical database model mandates that each child record has only one parent, whereas each parent record can have one or more child records.
A record chart, also known as a music chart, is a method of ranking music judging by the popularity during a given period of time. Although primarily a marketing or supermarketing tool like any other sales statistic, they have become a form of popular media culture in their own right. Record charts are compiled using a variety of criteria.
The first record chart was founded in 1952 by Percy Dickins, who was working at New Musical Express at the time. Dickins would telephone roughly twenty UK record stores and ask what their best-selling records were that week. [1] Several similar charts followed after the success of the NME chart, including Melody Maker and Record Retailer. [2]
2018 record charts (110 P) 2019 record charts (96 P) 2020 record charts (101 P) 2021 record charts (102 P) 2022 record charts (95 P) 2023 record charts (90 P)
The {{single chart}} template is available for formatting chart tables for single articles and the {{album chart}} template is for album articles. The use of the templates is strongly encouraged, as they automatically create a correct reference for the chart entry, allow changes to sourcing sites to be accommodated by editing a central location ...
For example, consider a database of electronic health records. Such a database could contain tables like the following: A doctor table with information about physicians. A patient table for medical subjects undergoing treatment. An appointment table with an entry for each hospital visit. Natural relationships exist between these entities:
Record chart; List of record charts; A. AGATA (organization) Album Top-40; Albums – Top 100 (Czech Republic) B. Billboard Christmas Hits 1983–1989; C. Chart hit;