PRE01 is an SAP Structure so does not store data like a database table does but can be used to process "Help structure for mass access to material" Information within sap ABAP programs. This is done by declaring abap internal tables, work areas or database tables based on this Structure. These can then be used to store and process the required data appropriately.
i.e. DATA: wa_PRE01 TYPE PRE01 .
Below is the documentation avaialable and full details of the fields which make up this Structure.
|Data Type||length (Decimals)||Check table||Description||Conversion Routine|
PRE01 - Help structure for mass access to material PRD_SUB_CH - KWSTAT: Sub-Structure of List with Checkbox PRD_SUBSTR - KWSTAT: Definition of Product Sub-Structures PRD_DET - Generated Table for View PRD_ASSIGN - KWSTAT: Assignment of Product Context PRDVERS - Information About Installed Product Versions