TIndexOptions¶
Set of TIndexOption values.
Declaration¶
Source position: db.pas line 1247
type
TIndexOptions = Set of TIndexOption = (ixPrimary,ixUnique,ixDescending,ixCaseInsensitive,
ixExpression,ixNonMaintained);Values¶
| Value | Description |
|---|---|
| ixPrimary | The index is the primary index for the data. |
| ixUnique | The index is a unique index, i.e. each index value can occur only once. |
| ixDescending | The values in the index are sorted descending. |
| ixCaseInsensitive | The values in the index are sorted case-insensitively. |
| ixExpression | The values in the index are based on a calculated expression. |
| ixNonMaintained | The index is non-maintained, i.e. changing the data will not update the index. |
Description¶
TIndexOptions contains the set of properties that an index can have. It is used in the TIndexDef.Options property to describe all properties of an index definition as in TIndexDef.
See also¶
| Name | Description |
|---|---|
| TIndexDef.Options | Index options. |
| TIndexDef | Index definition. |
| TIndexOption | Index description flags. |