Unit: ewbdatasetadapter

TEWBExecuteDataSetColumnCommandEvent = procedure(Adapter:
      TEWBDataSetAdapter; const DatabaseName: String; const
      ColumnName: String; Params: TParams; var RowsAffected: Integer;
      var DataSet: TDataSet) of object;

The TEWBExecuteDataSetColumnCommandEvent type is used by the TEWBDataSetAdapter OnExecuteSelectColumn event to execute a Select<Column> dataset command when retrieving BLOB columns.

The DatabaseName parameter is the name of the database (optional), the ColumnName parameter is the name of the BLOB column that needs to be retrieved, and the Params parameter is the list of parameters (and values) to use for executing the dataset command.

Both the RowsAffected and DataSet variable parameters must be populated by any event handler for this event type.