使用以下语句进行信息同步操作:MERGE INTO a USING XSB ON (a.学号=XSB.XH) WHEN MATCHED THEN UPDATE SET a.姓名=XSB.XM, a.性别=XSB.XB, a.出生时间=XSB.CSSJ, a.专业=XSB.ZY, a.总学分=XSB.ZXF, a.备注=XSB.BZ WHEN NOT MATCHED THEN INSERT VALUES(XSB.XH,XSB.XM,XSB.XB,XSB.CSSJ,XSB.ZY, XSB.ZXF, XSB.BZ);