Data.DB.TCheckConstraint
Delphi
TCheckConstraint = class(TCollectionItem)
C++
class PASCALIMPLEMENTATION TCheckConstraint : public System::Classes::TCollectionItem
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
class | public | Data.DB.pas Data.DB.hpp |
Data.DB | Data.DB |
Description
TCheckConstraint represents a record-level constraint on a dataset component.
cClient dataset components implement a Constraints property that uses check constraints to represent record-level constraints. These constraints can be derived from the server or the data dictionary, and can be customized in applications. Each TCheckConstraint object represents an individual constraint associated with a dataset.