主数据和辅助数据之间的差异

1.主要数据：
当一个机构或研究人员第一次从头到尾收集数据时，此类数据称为原始数据，它是原始数据，即最早被完全更新的数据称为原始数据。它是从头开始收集的，在收集原始数据上花费了大量金钱。同时，还需要人力，也就是需要人。

2.次要数据：
二级数据是机构或研究人员已经收集的数据，新的研究人员会生成有关此已收集数据的使用情况的新信息。例如，如果您已经有了印度的人口数据，则可以轻松地找出城市中有识字的人口比例和文盲率，但是您已经从印度的人口数据中收集了这些数据，因此，此数据将称为“辅助数据”。

主数据和辅助数据之间的区别：

S.NO	Primary Data	Secondary Data
1.	Primary data is the first data collected by a researcher for the first time.	Whereas secondary data is a data that is already collected by someone earlier.
2.	Primary data is called real-time data.	While this is not real-time data, it is related to the past.
3.	The process is very much involved in collecting primary data.	While collecting secondary data it does not involve much process but rather quickly and easily.
4.	Primary data is cost effective.	While it is economical.
5.	The primary data takes long time for collection.	While secondary data takes shorter time than primary data for collection.
6.	Primary data is available in crud form.	While it is available in processed or refined form.
7.	Primary data is more accurate than secondary data.	While it is less accurate than primary data.
8.	Primary data is more reliable than secondary data.	While secondary data is less reliable than primary data.
9.	There is also difficulty in collecting data.	While there is no difficulty in collecting data.