Content of the ALV Output

Content of the ALV Output With the ALV object model, you display structured data in a specific way: in your choice of ALV tool, you determine the display type for the ALV output.

In the application, you transfer a data table to the ALV object model. ALV then generates the required metadata from this table:That is the column description in the form of the individual COLUMN objects.

The data table that ALV uses is a reference to the internal data table that your application transfers. This ensures that ALV always works with the correct data. If changes are made to the internal data table, you only need to let ALV know (with REFRESH) to complete the changes in the ALV output.

Due to the different data models upon which the three ALV tools are based, there are different requirements for the data tables that they transfer.

In the following chapters you will learn how to

• Set the Internal Data Table

• Proceed when the Structure or Content of the Internal Data Table Changes .