Time for action – testing the transformation that loads the region dimension
- In the previous tutorial you loaded a dimension that stores geographical information. You ran it once, causing the insertion of one record for each city and a special record with values
n/a
for the descriptive fields. Let's apply some changes in the operational database, and run the transformation again to see what happens. - Launch MySQL Query Browser.
- Type the following sentence to change the names of the countries to upper case:
UPDATE countries SET country_name = UCASE(country_name)
- Execute it.
- If the transformation created in the last tutorial is not open, open it again.
- Run the transformation.
- The Step Metrics looks like this:
- Explore the
js_dw
database again and do a preview ...
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