TSqlIfNull
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 | TSqlCompositeExpression | Base class for SQL expressions that consist of subexpressions which can be retrieved using GetComposingExpressions. |
| 6 | TSqlFunction | Base class for SQL functions. |
| 7 | TSqlIfNull |
Source
Sql.Functions.FlowControl.pas (29)
Fields
| Scope | Visibility | Type | Name | Description |
|---|---|---|---|---|
| Instance | private | TSqlExpression | FCondition | |
| Instance | private | TSqlExpression | FValue |
Methods
| Scope | Visibility | Result | Name | Description |
|---|---|---|---|---|
| Instance | private | SetCondition(Value: TSqlExpression) | ||
| Instance | private | SetValue(Value: TSqlExpression) | ||
| Instance | protected | AddComposingExpressions(Target: TCollection<TSqlExpression>) | ||
| Instance | public | Create(Condition: TSqlExpression; Value: TSqlExpression) | ||
| Instance | public | Destroy() | ||
| Instance | public | TSqlFunction | CopyFunction() | |
| Instance | public | TSqlIfNull | CopyIfNull() | |
| Instance | public | TType | GetType() | |
| Instance | public | TBoolean | AggregatesRows() |