MAUSER NVARCHAR(50) NOT NULL,THANG FLOAT DEFAULT 0 NOT NULL,LCTG NVARCHAR(50) NOT NULL,CHOSUA NVARCHAR(1) DEFAULT '' NULL,CHOXOA NVARCHAR(1) DEFAULT '' NULL,CHOTHEM NVARCHAR(1) DEFAULT '' NULL,DANHDAU NVARCHAR(50) DEFAULT '' NULL,TRANGTHAI FLOAT DEFAULT 0 NULL PRIMARY KEY(THANG,MAUSER,LCTG) 