DataSet Structure
A DataSet object falls in disconnected components series. You can use it with or without data providers. The DataSet consists of a collection of tables, rows, columns and relationships. Figure 1 illustrates these relationships specifically that the DataSet contains a collection of DataTables and the DataTable contains a collection of DataRows, DataRelations, and DataColumns. A DataTable maps to a table in the database. The previous DataSet contains a DataTable that maps the Orders table because you filled it with a SELECT query executed on the Order table.
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