Q.1 Discuss the mailed questionnaire method of collecting primary data. What are its merits and demerits? Answer: (A) Mailed questionnaire method● Under this method, a questionnaire containing a number of questions related to the investigation is prepared. ...
In short, the sources of data are physical or digital places where information is stored in a data table, data object, or some other storage format. Data can be gathered from two places: internal and external sources. The information collected from internal sources is called “primary data,”...
There are a few tools that can be used to collect primary data. Paper and pen are one option. This is inexpensive and doesn’t require much training for enumerators, but creates a lot of work in manual data entry. It also introduces a high level of human error, resulting in poorer-qual...
When you’re writing a lab report, the data you gathered through your experiment is a primary source. Similarly, if you’re doing a write-up of an event you attended, your experiences at the event and any photos or videos you took are primary sources. Primary sources don’t necessarily h...
The disaster recovery architectures, such as two-site three-data-center and two-site four-data center, are supported. A primary/standby switchover can be implemented by promoting a standby node or demoting a primary node in the disaster recovery scenario. Figure 5 Real-time DR switchover Wor...
Data Virtualization Query different types of data on different types of data sources from SQL Server.SQL Server 2022 (16.x) Cumulative update 2 now introduces support for Oracle TNS files. For more information and samples, see CREATE EXTERNAL DATA SOURCE (Transact-SQL) CONNECTION_OPTIONS.Availabili...
Relating data is an essential concept when you're diving into the realm of complex app building with Power Apps. It's all about establishing connections between different data sources to enhance functionality and data organization.Consider a travel expense app, you might want one primary record ...
Adata warehouse—or enterprise data warehouse (EDW)—aggregates data from different sources into a single, central, consistent data store to support data analysis, data mining, AI and machine learning. Data warehouses are most often used for managingstructured datawith clearly defined analytics use ...
If your business requires multi-dimensional queries such as queries based on non-primary key columns, Boolean queries, and fuzzy queries, you can create a search index based on the fields that you need. Then, you can query and analyze the data by using the search index. Tablestore SQL ...
Businesses today often preside over vast data estates consisting of a wide array of ever-growing data sets that are hosted in siloed data sources across the company. Gain near real-time insights from all your data with SQL Server 2019 Big Data Clusters, which provide a complete environment for...