The Nested Tablel Component TNested Tabie

The records in a nested detail set are represented in Delphi by nested datasetsl accessed by the TNestedTabld component. This type of data is found in Oracle 8 relations only and cannot be created through Delphi. The field's NestedDataSet property contains a reference to the nested datasetj BDE functionality is extended to the access and manipulation

I 54 ■ Port ¡/-The Delphi Database Tools of the nested table data. The nested table then has most of the functionality of a single table component recognizing the nested nature of the data.

Figure 5.20 details the properties of this control.

Property

Default Value Purpose

Determines whether or not the dataset is

Property

Default Value Purpose

Determines whether or not the dataset is

Figure 5.20 The TNestedTable component properties

Putting this control to work requires an in-depth knowledge of the Oracle data structure that you are addressing. The DataSetField property of the component is the determinant of the field that contains the nested data. A DataSource component is directed at the NestedTable control to pass the result set to the display controls of the application.

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