Drag-drop Derived Column transform from Common section in the SSIS Toolbox to the Data Flow tab. Right-click Derived Column Transform in the Data Flow tab, and click Rename. Type Add Columns Required by MDS and press ENTER.Click to see full answer. Keeping this in consideration, what is the use of derived column transformation in SSIS?Derived Column Transformation. SSIS Derived Column Transformation is one of the SQL Server Integration Services that can be added within a Data Flow Task, it is used to add a new column to the data pipeline by applying SSIS expressions.Beside above, what is a derived column? The Derived Column transformation creates new column values by applying expressions to transformation input columns. An expression can contain any combination of variables, functions, operators, and columns from the transformation input. Concatenate data from different columns into a derived column. Besides, how do I add a derived column in SQL? Go to your database, right click on tables, select “New Table” option. Create all columns that you require and to mark any column as computed, select that column and go to column Properties window and write your formula for computed column.How do I change the length of a derived column in SSIS?Right-click on the derived column transformation, select Show Advanced Editor, select the “Input and Output Properties”. Expand “Derived Column Output” -> “Output Columns” -> Your column ( Key2 in this instance I believe). Under “Data Type Properties” edit Length to be 100.