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.
Este exercício faz parte do curso
Cleaning Data in SQL Server Databases
Instruções do exercício
- 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.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
SELECT
airport_code,
-- Use the appropriate function to remove the extra spaces
___(___) AS airport_name,
airport_city,
airport_state
-- Select the source table
FROM ___