IDtVfpProvider.Query

Syntax

Query: String;

Description

The Query property determines Visual Foxpro tables query.

Comments

Imported data is selected by means of the query.

Example

Executing the example requires that the repository contains an ETL task with the ETL identifier and the Visual Foxpro Data.dbf table in the root of the C disk.

Sub Main;
Var
    MB: IMetabase;
    MObj: IMetabaseObject;
    EtlTask: IEtlTask;
    EtlProvider: IEtlPlainDataProvider;
    VfpProvider: IDtVfpProvider;
    WxProvider: IWxRectangle;
    WxETLProvider: IWxETLObject;
Begin
    MB := MetabaseClass.Active;
    // ETL task search. Repository object with the ETL identifier
    MObj := MB.ItemById("ETL").Edit;
    EtlTask := MObj As IEtlTask;
    // Start of data provider creation
    // Create the "Import from Visual Foxpro" object
    EtlProvider := EtlTask.Create(EtlObjectType.PlainDataVfpProvider) As IEtlPlainDataProvider;
    EtlProvider := EtlProvider.Edit;
    EtlProvider.Id := "Vfp_Provider";
    EtlProvider.Name := "Import from Visual Foxpro";
    EtlProvider.Description := "Import from Visual Foxpro";
    // Set up data provider
    VfpProvider := EtlProvider.Provider As IDtVfpProvider;
    VfpProvider.Path := "c:\";
    VfpProvider.Query := "Select * From Data";
    EtlProvider.FillDefault;
    // Save data provider
    EtlProvider.Save;
    // End of data provider creation
    // Start of visual object creation
    WxProvider := EtlTask.Workspace.CreateRectangle;
    WxETLProvider := New WxETLObject.Create;
    WxETLProvider.ETLObject := EtlProvider;
    WxProvider.Style.TextPosition := WxTextPosition.Bottom;
    WxProvider.Style.PictureMarginTop := -10;
    WxProvider.PinPosition := New GxPointF.Create(5050);
    WxProvider.Extension := WxETLProvider As IWxShapeExtension;
    // End of visual object creation
    // Save ETL task
    MObj.Save;
End Sub Main;

After executing the example the Import from Visual Foxpro object is created in the ETL task. This data provider imports data from the Foxpro table named Data.

See also:

IDtVfpProvider