Data.Win.ADODB.TParameterAttributes

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[–] Properties Type:

set

typedef

Visibility: public Source:

Data.Win.ADODB.pas

Data.Win.ADODB.hpp

Unit: Data.Win.ADODB Parent: Data.Win.ADODB

Delphi

TParameterAttributes = set of TParameterAttribute;

C++

typedef System::Set<TParameterAttribute, TParameterAttribute::paSigned, TParameterAttribute::paLong> TParameterAttributes;

Description

TParameterAttributes values indicate the types of values a parameter can accept.

Use TParameterAttributes values to specify the characteristics of a parameter that control the types of values a parameter can accept.

The constants that make of the TParameterAttributes type correspond to the ADO ParameterAttributesEnum values of similar names. For instance, the TParameterAttributes type constant paSigned corresponds to the ADO constant adParamSigned. For additional information on these ADO constants and their effects, see the Microsoft Data Access SDK help in the topic for the Attributes property of the ADO Parameter object.

TParameterAttributes consists of the three constants summarized in the following table:

Parameter Attribute	Meaning
paSigned	The parameter accepts signed values.
paNullable	The parameter accepts NULL values.
paLong	The parameter accepts long binary data.

See Also

• TParameter