This code appears to process a dataset by analyzing and...

This code appears to process a dataset by analyzing and transforming geographic data, and it likely belongs to a SQL-based query or a scripting language used for extracting or transforming data in a tabular format (potentially within a tool like QlikView, Tableau Prep, or similar environments).

Here’s a breakdown of what this code snippet does:

1. dpg2_seg

• dpg2_seg is presumably a field or column from a dataset that’s being used as is. It is not modified in this snippet but might be used later.

2. geo as geo_original

• Renames or creates a new alias, geo_original, for the geo field. This preserves the original geo values before any transformation.

3. mid(geo,2) as geo

• Creates a new geo column by extracting a substring from the second character of the original geo field onward.
  • Example: If the original geo is D123, the new geo will become 123.

4. GeoSelect1

• Creates a new computed column named GeoSelect1 by evaluating the first character of the original geo column (LEFT(geo,1)) and categorizing it into one of four geographic levels:
  • If the first character is 'D', the value is 'District'.
  • If the first character is 'A', the value is 'Area'.
  • If the first character is 'R', the value is 'Region'.
  • If the first character is 'C', the value is 'Company'.
• Otherwise, it likely leaves the value as null.

5. GeoLevel

• Similar to GeoSelect1, this creates a new field named GeoLevel by extracting the first character of geo and returning just that character ('D', 'A', 'R', or 'C' as applicable).

6. DPGGeoKey

• Creates a new field named DPGGeoKey by concatenating dpg2_seg with the substring of geo starting from the second character (mid(geo,2)) using the pipe symbol (|) as a separator.
  • Example: If dpg2_seg is SEG1 and geo is D123, the resulting value in DPGGeoKey would be SEG1|123.

Final Purpose

This code primarily:

1. Analyzes the first character of a geographic identifier (geo) to categorize it into hierarchical levels.
2. Extracts and processes a meaningful portion of the geo field (ignoring the first character).
3. Constructs a unique DPGGeoKey by combining dpg2_seg with the processed geo value.
4. Outputs these transformations, likely for further analysis or reporting purposes.