An analyst at a supermarket chain has been asked to extract data from multiple data sources to complete a study on customer spending habits. The analyst is going to query data from various databases. Which statement is true about database querying?
A.
Querying can be used to create predictive data models
B.
Irrespective of the querying language used, data results retrieved are always in a tabular format
C.
A querying language is independent of the type of database being used
D.
Querying is a structured way of searching, manipulating and managing data
See pg 113 - 3.6 Data Mapping - This section describes data mapping, which involves consolidating data from various sources into a standardized format for easier access and reporting. This process requires a structured approach to ensure that data is accurately transformed and integrated, which aligns with the idea that querying is a structured method for handling data.
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