Standard actions to be used for navigating and manipulating datasets derived from external databases TDataSetAction - base class for all other standard TDataSet actions DataSource - the locally-stored series of records forming the DataSet, derived (by a query) from the external database TDataSetFirst - move to first record in the DataSet TDataSetLast - move to last record in the DataSet TDataSetNext - move to next record in the DataSet TDataSetPrior - move to previous (prior) record in the DataSet TDataSetRefresh - refresh the DataSet by reference to the external database TDataSetCancel - cancel the previous operation on the DataSet TDataSetDelete - delete the current record in the DataSet TDataSetEdit - edit the current record in the DataSet TDataSetInsert - insert (append) a new record into the DataSet TDataSetPost - post the editing changes on the current record permanently into the DataSet (may need a separate action to make changes permanently in external database)