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ÈÕÆÚ ²¿ÃÅ ÓªÒµ¶î
09-20 ²¿ÃÅ1 100
09-20 ²¿ÃÅ2 200
09-20 ²¿ÃÅ3 300
09-19 ²¿ÃÅ2 400
09-19 ²¿ÃÅ4 500
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SQL code:
select * from yourTable a
where not exists (select 1 from yourTable where ÈÕÆÚ=a.ÈÕÆÚ and ÓªÒµ¶î>a.ÓªÒµ¶î);
SQL code:
select ²¿ÃÅ,sum(ÓªÒµ¶î) ×ÜÓªÒµ¶î
from ±íÃû
group by ²¿ÃÅ
order by ×ÜÓªÒµ¶î desc
limit 1;
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SQL code:
select a.*
from yourTable a inner join (select ÈÕÆÚ,max(ÓªÒµ¶î) as max_ÓªÒµ¶î from yourTable group by ÈÕÆÚ) b
on a.ÈÕÆÚ=b.ÈÕÆÚ and a.ÓªÒµ¶î=b.max_ÓªÒµ¶î
SQL code:
mysql> select * f
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{
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now()
SQL code:
sqlÀïÊÇ£º
getdate()
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now()
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SQL code:
select now();
SQL code:
TODAY()
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SQL code:
select now();
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