帮忙找到答案?

帮忙找出答案??

写一个sql,表tab1字段A、B、C,C为创建时间,B为数字型,找到B在100到1000之间,创建时间最大的记录

我自己的弄的答案:Select * from(select rownum,A,B,C FROM tab1 where B between 100 and 1000 order by C) rownum =1;

现不知道这句是不是正确的,请高手指教,谢谢



select max(C) FROM tab1 where B between 100 and 1000 order by C

or

select * from (

select rownum,A,B,C FROM tab1 where B between 100 and 1000 order by C) a 

order by b desc limit 1




贴建表及插入记录的SQL,及要求结果出来看看



SQL code

select  *
from tb1 T1
where T1.B between 100 and 1000
order by C desc
limit 1


select * from 表tab1 where B between 100 and 1000 order by C desc limit 1

SQL code
SELECT *
FROM 
tab1
WHERE b BETWEEN 100 AND 1000 
ORDER BY c DESC LIMIT 1;


                        
    
    
                    
帮忙找到答案?

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