Structured data
Structured data is data that has a well-defined structure, type, and format organized and standardized in a repository called a database for storage, retrieval, and processing. Structured Query Language (SQL) is used for interacting with this data. This means that structured data has a fixed set of attributes and is in the format of rows and columns.
Rows and columns
Rows are the entities or records and columns are attributes. Simply put, columns are the labels or headers in your table and rows are the values under those headers. Consider Table 3.1:
|
Name |
Age |
ZIP |
|
John Doe |
35 |
33306 |
|
Michael Angel |
40 |
33309 |
Table 3.1 – A table with rows and columns
The Name, Age, and ZIP labels are the...
