| Table | Table Description | Column# | Alias | Column Description | Data Type | Length | Decimals | Default Value | Constraints |
|---|
| TOPBasic Data |
| 1 | NPLANC | IS-H: Statistical Figures for Occupancy Characteristics | 3 | PCHAR | IS-H: Occupancy Characteristic | nvarchar | 8 | 0 | | |
| 2 | TNPC1 | IS-H: Coding of Occupancy Characteristics | 3 | PCHAR | IS-H: Occupancy Characteristic | nvarchar | 8 | 0 | | |
| 3 | TNPC1T | IS-H: Coding of Occupancy Characteristics (Texts) | 4 | PCHAR | IS-H: Occupancy Characteristic | nvarchar | 8 | 0 | | |
| TOPBelgium |
| 4 | T5BTM | Monthly salaries - deduction in advance | 4 | PCHAR | Number of dependent children | nvarchar | 2 | 0 | | |
