unit SqlExpr;

  TSQLConnection << (TCustomConnection unit DB) << (TComponent unit Classes) ...

  TSQLDataSet << TCustomSQLDataSet << (TWideDataSet unit DB) << (TDataSet unit DB) << (TComponent unit Classes) << (TPersistent unit Classes) << (TObject unit System)

  TCustomSQLDataSet ...

  TSQLQuery << TCustomSQLDataSet ...

  TSQLStoredProc << TCustomSQLDataSet ...

  TSQLTable << TCustomSQLDataSet ...

  TSQLMonitor << (TComponent unit Classes) ...

  TTransactionItem

  TConnectionData

  TSQLDataLink

  TFLDDesc

  TSQLParams