Data to be extracted from a table can be processed in various ways, such as by grouping or by sorting in ascending or descending order. HiRDB provides three types of data processing:

• Grouping data
• Sorting in ascending or descending order
• Eliminating duplicated data

Organization of this section

2.9.1 Data grouping

2.9.2 Data sorting

2.9.3 Duplicated data elimination