TCustomDASQL.Params Property

Used to contain parameters for a SQL statement.

Class

TCustomDASQL

Syntax

property Params: TDAParams stored False;

Remarks

Access the Params property at runtime to view and set parameter names, values, and data types dynamically (at design-time use the Parameters editor to set parameter properties). Params is a zero-based array of parameter records. Index specifies the array element to access. An easier way to set and retrieve parameter values when the name of each parameter is known is to call ParamByName.

Example

Setting parameters at runtime:

procedure TForm1.Button1Click(Sender: TObject);
begin
with VirtualSQL do
	begin
      SQL.Clear;
      SQL.Add('INSERT INTO Temp_Table(Id, Name)');
      SQL.Add('VALUES (:id, :Name)');
      ParamByName('Id').AsInteger := 55;
      Params[1].AsString := ' Green';
      Execute;
   end;
end; 

See Also

• TDAParam
• FindParam
• Macros