求sql语句,求统计出来最大值。答:CREATE TABLE test(a INT,b INT,c int)INSERT INTO dbo.test ( a , b , c )SELECT 1,2,1UNION ALLSELECT 1,1,3UNION ALLSELECT 1,2,3UNION ALLSELECT 2,2,4UNION ALLSELECT 2,3,5UNION ALLSELECT 2,2,6--SELECT * FROM testSELECT t3.a,t3.b,t3.bbFROM (SELEC...