根据上文"What is a database?A database is a collection of data or information that is organized,stored,and accessed electronically." (什么是数据库?数据库是用电子方式进行组织、存储和访问的数据或信息的集合。)对datebase下了定义,解释了datebase的原理,E项"It is organized so that searching and ...
根据上文“What is a database? A database is a collection of data or information that is organized, stored, and accessed electronically.(什么是数据库?数据库是用电子方式组织、存储和访问的数据或信息的集合)”以及后文“There are three main distinguishing aspects of any database(任何数据库都有三...
解析 C。解析:进行深度访谈(Conducting in - depth interviews)是一种定性的数据收集方法,它旨在获取被试者的主观体验、想法、态度等质性信息。测量反应时间(Measuring reaction times)和统计正确反应的数量(Counting the number of correct responses)都是定量的数据收集方法,得到的是数值型的数据。
Added superstore sales example data Sep 3, 2014 syntagmatic Add data sets from syntagmatic Aug 5, 2015 trumpSpeech Rename trumpSpeech.txt to trumpSpeech.md Jul 22, 2016 tuskegeeInstitute Add links to references Nov 25, 2015 tweets Merge branch 'gh-pages' of github.com:curran/data into gh-pa...
One way is through cookies, which are small pieces of data stored on a user's computer. They track a user's browsing history and activity on a site, measuring levels of engagement with a business’s products or services, for example. Another way organizations can collect data automatically ...
The following example uses the Find method to find the primary key value "2" in a collection of DataRow objects. The method returns the specific DataRow object letting you change its values, as needed. C# Copy private void FindInPrimaryKeyColumn(DataTable table, long pkValue) { // Find...
Careless treatment of personal data in a mobile app can have disastrous consequences. Air Canada, for example,suffered a data breachin which mobile app users' passport numbers were stolen, seemingly due to having implemented aweak password system. And in 2018,five companiessettled cases with the ...
The law of business data distribution cannot be predicted. For example, the system cannot know in advance whether the value distribution of a field in a table is roughly uniform without calculation. The number of calculation results cannot be predicted. For example, the result of the association...
(item); } } } /* This code example produces the following output: 4 dinosaurs: Psitticosaurus Caudipteryx Compsognathus Muttaburrasaurus IndexOf("Muttaburrasaurus"): 3 Contains("Caudipteryx"): True Insert(2, "Nanotyrannus") Psitticosaurus Caudipteryx Nanotyrannus Compsognathus Muttaburrasaurus...
An Acorn BBC model B microcomputer is applied to the collection and processing of data in a photosynthesis experiment. Interfacing to a pH meter and an oxygen meter are described in detail, as are necessary modifications to the BBC's reference circuitry. Data collection software is explained and...