Primary and Secondary data-主要和次要数据 【知识点】 Primary and Secondary data-主要和次要数据 Primary and Secondary data-主要和次要数据 Primary dataare data collected especially/particularly for a specific purpose. Secondary dataare data which have already been collected elsewhere, for some other purp...
Summary This chapter discusses the role played by recent events in the selection primary and secondary data centers and presents some suggestions. In the northeastern United States, the financial capital of the world, the data center and business continuity site was often located within 10 miles of...
secondary data and primarydata ResearchMethodsinInternationalBusiness LinHua林花SouthwesternUniversityofFinanceandEconomics2012 1 Lecture5Structures Today’scoursestructures:Firstclass:taughtcourseDatasources:1.Secondarydata2.PrimarydataSecondclass:discussingwithyouaboutyourresearchtopicandresearchproblems(questions)2 Lec...
[translate] aample 正在翻译,请等待... [translate] aHello this is: 你好这是: [translate] asomething to eat 某事吃 [translate] abe late for school 为学校是晚 [translate] aInspection Equipment Rules 检查设备规则 [translate] aprimary data and secondary data 主要数据和二次数据 [translate] ...
thisdatahas already been collected by some other source and an investigator makes use of it for his purpose.Secondarydatais different fromprimarydataon the basis of the sources of their collection. The difference between the two is relative -datawhich isprimaryat one place becomesecondaryat ...
(A) Meaning of secondary data● Secondary data refers to the data that has already been collected by some other person or agency and is used by us. (B) Sources of secondary data can broadly be classified under two categories: 1. Published sources ...
在英语中，primary data是主要数据，secondary data是次要数据。用Primary data举例子：separate the primary data and indices to that data.他们的解决方案是把主要数据和这些数据的索引分离开来。The Node object is the primary data type for the entire DOM.节点对象是整个DOM中最主要的数据类型。用...
table, SQL Server checks if the information in the record's primary key fields is unique. If so, it then inserts the record into the correct logical position. Records are sorted dynamically so the database is always structurally correct. This sorting allows for fast data manipulation and ...
In our secondary analyses, we explored the effect of type, clinical setting (hospital-recorded or general practitioner-recorded), frequency, and timing of infections on dementia incidence. Time since infection was split into overlapping periods (3 months to <1 year, 3 months to <2 years, and ...
Data for 2010, 2012, and 2013 were not provided by the source. The source mentions that the number of out-of-school children is calculated by subtracting the number of primary school-age children enrolled in primary or secondary school from the total population of the official primary school...