bagaimana mendeklarasikan tanggal variabel di mysql

set @report_date = '2013-01-17 00:00:00';

SELECT  *
  FROM `NMPP`.`capacitypersecond` 
  WHERE `StreamDT` >= @report_date and `StreamDT` < '2013-01-18 00:00:00'  ;
Blue-eyed Barracuda