A.Drop FROM lagdat WHERE UserID=‟Sgo012‟ B.Drop FROM lagdat WHERE UserID=Sgo012 C.Dele FROM lagdat WHERE UserID=‟Sgo012‟ D.Dele FROM lagdat WHERE UserID=Sgo012
A.UPDATE logdat SET KeyWord=uk72hJ B.UPDATE SET KeyWord=uk72hJ C.UPDATE logdat SET KeyWord=‟uk72Hj‟ D.Edit logdat SET KeyWord=uk72hJ
A.SELECT FROM GZ for 職稱=工程師 ORDER BY 年齡/D B.SELECT FROM GZ WHERE職稱=工程師 ORDER BY 年齡 DESC C.SELECT * FROM GZ WHERE職稱=‟工程師‟ ORDER BY 年齡 DESC D.SELECT * FROM GZ WHERE職稱=‟工程師‟ ORDER ON 年齡 DESC