Hi,
Interesting question not here to tell the report name(that's there in SAP help), but size is usually assigned at the time of table definition and creation based on an estimate number of entries that can be there in the table. There are some standards given by SAP like:
| APPL0 | Master data, transparent tables |
| APPL1 | Transaction data, transparent table |
| APPL2 | Organization and customizing |
| DDIM | Dimension Tables in BW |
| DFACT | Facts Table in BW |
| DODS | ODS Tables in BW |
and based on this size categories chosen from values like:
| 0 | 0 to | 3,800 |
| 1 | 3,800 to | 15,000 |
| 2 | 15,000 to | 62,000 |
| 3 | 62,000 to | 240,000 |
| 4 | 240,000 to | 990,000 |
| 5 | 990,000 to | 1,900,000 |
| 6 | 1,900,000 to | 3,900,000 |
| 7 | 3,900,000 to | 7,900,000 |
| 8 | 7,900,000 to | 15,000,000 |
| 9 | 15,000,000 to 630,000,000 |
So its a estimate at SAP side design stage that kind of guides the process, but is chopping and changing the size from time to time say depending on how the table grows how will that help. What issue's are you pointing to exactly?
I mean getting the number of records in a Table is like a COUNT(*) for all clients and the size category is anyhow available in table DD09L.
Cheers,
Arindam