| Name | Description | 
  
    | AsArray | Used to specify the value of the parameter when it represents the value of the InterBase array type. | 
  
    | AsBlob (inherited from TDAParam) | Used to set and read the value of the BLOB parameter as string. | 
  
    | AsBlobRef (inherited from TDAParam) | Used to set and read the value of the BLOB parameter as a TBlob object. | 
  
    | AsFloat (inherited from TDAParam) | Used to assign the value for a float field to a parameter. | 
  
    | AsIbBlob | Used to specify the value of the parameter when it represents the value of BLOB type. | 
  
    | AsInteger (inherited from TDAParam) | Used to assign the value for an integer field to the parameter. | 
  
    | AsLargeInt (inherited from TDAParam) | Used to assign the value for a LargeInteger field to the parameter. | 
  
    | AsMemo (inherited from TDAParam) | Used to assign the value for a memo field to the parameter. | 
  
    | AsMemoRef (inherited from TDAParam) | Used to set and read the value of the memo parameter as a TBlob object. | 
  
    | AsSQLTimeStamp (inherited from TDAParam) | Used to specify the value of the parameter when it represents a SQL timestamp field. | 
  
    | AsString (inherited from TDAParam) | Used to assign the string value to the parameter. | 
  
    | AsWideString (inherited from TDAParam) | Used to assign the Unicode string value to the parameter. | 
  
    | DataType (inherited from TDAParam) | Indicates the data type of the parameter. | 
  
    | IsNull (inherited from TDAParam) | Used to indicate whether the value assigned to a parameter is NULL. | 
  
    | ParamType (inherited from TDAParam) | Used to indicate the type of use for a parameter. | 
  
    | Size (inherited from TDAParam) | Specifies the size of a string type parameter. | 
  
    | Value (inherited from TDAParam) | Used to represent the value of the parameter as Variant. |