Trim Functions in SSIS
Bradley Schacht is a Principal Program Manager on the Microsoft Fabric product team based in Saint Augustine, FL. Bradley is a former consultant, trainer, and has coauthored 6 SQL Server and Power BI books, most recently Learn Microsoft Fabric. As a member of the Microsoft Fabric product team, Bradley works directly with customers to solve some of their most complex data problems and helps shape the future of Microsoft Fabric. Bradley gives back to the community through speaking at events such as the SQLBits, Fabric Community Conference, PASS Community Data Summit, SQL Saturdays, Code Camps, and user groups across the country including locally at the Jacksonville SQL Server User Group (JSSUG). He is a contributor on SQLServerCentral.com and blogs on his personal site, BradleySchacht.com.
Notice the highlighted result that the trailing spaces are still present but the leading spaces are gone. RTRIM (Right Trim): Just as in T-SQL, this removed empty spaces from the end (or right) of a string. 
Notice the highlighted result that the trailing spaces are gone but the leading spaces are still present. TRIM: In T-SQL to remove both leading and training spaces you have to nest the trim statements like this: SELECT LTRIM(RTRIM(ColumnName)) AS ColumnName FROM Table. Luckily in SSIS there is a TRIM function that will remove both leading and trailing space in one function called TRIM. 
Notice the highlighted result that the trailing and leading spaces are gone.