FireDAC.Stan.Param.TFDParam.ParamType
Delphi
property ParamType: TParamType read FParamType write FParamType default ptUnknown;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| property | published | FireDAC.Stan.Param.pas | FireDAC.Stan.Param | TFDParam |
Description
Indicates the type of the parameter the TFDParam represents.
The ParamType property specifies the type of the parameter the TFDParam represents, which can be:
| Value | Description |
|---|---|
|
ptUnknown |
Unknown or undetermined. Before executing a stored procedure, the application must set parameters of this type to another kind. |
|
ptInput |
Used to input a field value. Identifies a parameter used to pass values to a query or stored procedure for processing. |
|
ptOutput |
Used to output a field value. Identifies a parameter used by a stored procedure to return values to an application. |
|
ptInputOutput |
Used for both input and output. |
|
ptResult |
Used as a return value. Identifies a parameter used by a stored procedure to return an error or status value. A stored procedure can only have one parameter of type ptResult. |