1. Học hỏi
    2. /
  2. Khoa Học
    3. /
  3. Cleaning Data in SQL Server Databases
Connected

Bài tập

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.

Hướng dẫn

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.