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  3. Cleaning Data in SQL Server Databases

Exercise

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.

Instructions

100 XP
  • Examine the content of the airports table 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.