Trimming strings I
Messy strings can be a problem because sometimes, it is not easy to analyze them without cleaning them.
When analyzing the airports table, you realize that some values of the airport_name column are messy strings. These strings have leading and trailing spaces.
The TRIM() function can help you to remove these additional spaces for the airports table.
Questo esercizio fa parte del corso
Cleaning Data in SQL Server Databases
Istruzioni dell'esercizio
- Examine the content of the
airportstable to see the leading and trailing spaces. - Use the appropriate function to remove the leading and trailing spaces.
- Select the source table where the data is.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
SELECT
airport_code,
-- Use the appropriate function to remove the extra spaces
___(___) AS airport_name,
airport_city,
airport_state
-- Select the source table
FROM ___