TSqlUnion
Statement to combine the result sets of its composing statements.
Inheritance
| Level | Ancestor | Description |
|---|---|---|
| 1 | TObject | Ultimate ancestor in a class hierarchy |
| 2 | TBaseObject | A base class for objects that can be used instead of TObject. |
| 3 | TReferenceCountedObject | Object that keeps track of the number of times it is referenced from other objects |
| 4 | TSqlExpression | Base class for expressions in an SQL expression tree. |
| 5 | TSqlStatement | Base class for statements that can be executed by a database. |
| 6 | TSqlResultSetStatement | Base class for statements generating a result set. |
| 7 | TSqlUnion |
Source
Sql.Statement.ResultSet.Union.pas (28)
Fields
| Scope | Visibility | Type | Name | Description |
|---|---|---|---|---|
| Instance | public | TSqlDuplicateMode | DuplicateMode | |
| Instance | public | TList<TSqlSelect> | Statements |
Methods
| Scope | Visibility | Result | Name | Description |
|---|---|---|---|---|
| Instance | protected | TSqlResultSetColumnList | GetColumns() | |
| Instance | public | Create(DuplicateMode: TSqlDuplicateMode) | ||
| Instance | public | Destroy() | ||
| Instance | public | TSqlResultSetStatement | CopyResultSetStatement() | |
| Instance | public | TSqlUnion | CopyUnion() | |
| Instance | public | AddSortColumn(Index: TInteger32; Order: TSortOrder) |