TSQLSequence class

Declaration

Inheritance

1. TSQLSequence
2. TPersistent
3. TObject

Description

TSQLSequence is an auxiliary class, used to auto-generate numerical values for fields in databases that support sequences; it is used as a property of TSQLQuery and its properties determine which field must be auto-generated, and at what moment this value must be generated.

See also

• GetSequenceNames
• GetNextValue

Properties

FieldName	published	Field to apply sequence to.
SequenceName	published	Sequence name to get values from.
IncrementBy	published	Value to increment sequence with.
ApplyEvent	published	When to apply the new value.

Methods

Create	public	Create a new instance.
Assign	public	Assign one TSQLSequence to another.
Apply	public	Apply a new value to a field.
GetNextValue	public	Get a next value for the sequence.

Inherited

From TPersistent (8)

AssignTo DefineProperties Destroy FPOAttachObserver FPODetachObserver FPONotifyObservers GetNamePath GetOwner

From TObject (40)

AfterConstruction BeforeDestruction CheckDisposed ClassInfo ClassName ClassNameIs ClassParent ClassType CleanupInstance DefaultHandler DefaultHandlerStr Dispatch DispatchStr Disposed DisposeOf Equals FieldAddress Free FreeInstance GetDisposed GetHashCode GetInterface GetInterfaceByStr GetInterfaceEntry GetInterfaceEntryByStr GetInterfaceTable GetInterfaceWeak GetLastCastErrorInfo InheritsFrom InitInstance InstanceSize MethodAddress MethodName newinstance QualifiedClassName SafeCallException StringMessageTable SystemHasExtendedRTTI ToString UnitName