Data mapping is a process of defining a link between two distinct data models. It is used in software engineering to describe ideal ways to represent and access any form of information. It is used in data warehousing by linking source data models to target data models and additional for describing any transformations between these two models.
DW - Data Warehousing & Modeling
It is the ability to determine when a particular process will take place in the future, with special consideration on resource availability, activities, and time constraints.
The Structured Query Language uses a classic English keyword-oriented set of commands to query, describe, manipulate, and manage data.
For example, a user can summarize ‘Sales in a specific region’ as a percentage of ‘Total Sales.’