| Column_name | Data type | Nullable | Default | Check | Key/index |
|---|---|---|---|---|---|
| OrderID | int | no | Composite PK, clust1, FK Orders(OrderID)2 |
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| ProductID | int | no | Composite PK, clust1, FK Products(ProductID)3 |
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| UnitPrice | money | no | 0 | yes4 | |
| Quantity | smallint | no | 1 | yes5 | |
| Discount | real | no | 0 | ||
| 1The composite, primary key, clustered index is defined on OrderID and ProductID.
2There are also two nonclustered indexes on OrderID. 3There are also two nonclustered indexes on ProductID. 4The UnitPrice CHECK constraint is defined as (UnitPrice >= 0). 5The Quantity CHECK constraint is defined as (Quantity > 0). The table-level CHECK constraint is defined as (Discount >= 0 and Discount < = 1). |
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