我的table引用:http://www.sqlfiddle.com/#!2/6be93/1在这里我想找到学校的总分。我正在使用以下代码。SELECTSchool,SUM(GroupPoint)ASTotalC1,SUM(C2Points)ASTotalC2,SUM(C3Points)ASTotalC3,SUM(GroupPoint+C2Points+C3Points)ASTotalAllFROMstudentsGROUPBYSchoolORDERBYTotalAllDESCLIMIT6引用:http://www.sqlfiddle.com/#!2/25ed3/2我的问题，ID1,2,