| Table | Table Description | Column# | Alias | Column Description | Data Type | Length | Decimals | Default Value | Constraints |
|---|
| TOPBasic Functions |
| 1 | ETXDCH | External tax document: header info | 25 | CURR_DEC | Number of decimal places for currency (characters) | nvarchar | 3 | 0 | | |
| 2 | TTXY | External tax interface: tax information | 36 | CURR_DEC | Number of decimal places for currency (characters) | nvarchar | 3 | 0 | | |
| TOPTransaction Tax Engine |
| 3 | TTEPD3_USITEM | Persistency TTE Document UsItem | 31 | CURR_DEC | No. of Decimal Places for Tax Reporting Currency | nvarchar | 3 | 0 | | |
| 4 | TTEPDT_USITEM | Persistency TTE Document UsItem | 31 | CURR_DEC | No. of Decimal Places for Tax Reporting Currency | nvarchar | 3 | 0 | | |
| 5 | TTESDT_USITEM | Output Exemptions | 31 | CURR_DEC | No. of Decimal Places for Tax Reporting Currency | nvarchar | 3 | 0 | | |
