Copy Column Transformation
Applies to: 
SQL Server
SSIS Integration Runtime in Azure Data Factory
The Copy Column transformation creates new columns by copying input columns and adding the new columns to the transformation output. Later in the data flow, different transformations can be applied to the column copies. For example, you can use the Copy Column transformation to create a copy of a column and then convert the copied data to uppercase characters by using the Character Map transformation, or apply aggregations to the new column by using the Aggregate transformation.
Configuration of the Copy Column Transformation
You configure the Copy Column transformation by specifying the input columns to copy. You can create multiple copies of a column, or create copies of multiple columns in one operation.
This transformation has one input and one output. It does not support an error output.
You can set properties through the SSIS Designer or programmatically.
The Advanced Editor dialog box reflects the properties that can be set programmatically. For more information about the properties that you can set in the Advanced Editor dialog box or programmatically, click one of the following topics:
For more information about how to set properties, see Set the Properties of a Data Flow Component.
Copy Column Transformation Editor
Use the Copy Column Transformation Editor dialog box to select columns to copy and to assign names for the new output columns.
Note
When you are simply copying all of your source data to a destination, it may not be necessary to use the Copy Column transformation. In some scenarios, you can connect a source directly to a destination, when no data transformation is required. In these circumstances it is often preferable to use the SQL Server Import and Export Wizard to create your package for you. Later you can enhance and reconfigure the package as needed. For more information, see SQL Server Import and Export Wizard.
Options
Available Input Columns
Select columns to copy by using the check boxes. Your selections add input columns to the table below.
Input Column
Select columns to copy from the list of available input columns. Your selections are reflected in the check box selections in the Available Input Columns table.
Output Alias
Type an alias for each new output column. The default is Copy of, followed by the name of the input column; however, you can choose any unique, descriptive name.