sql如何两个字分组查询

A. 一个sql查询根据两个字段分组问题

可以这样写
select * from table where title like '%a%'
union
select * from table where context like '%a%'

B. SQL 按两个字段分组

selectMODELNO,COLORfrom表名groupbyMODELNO,COLOR

表名换下

这样能分组

但是你可能还有别的东西要做吧，这样只是把组分了呀

C. 已知 ，数据库两个字段，年，月。现在要按照季度分组查询，怎么写sql语句

先case when将月份变成季度，然后再group by即可，SQL如下：

select year, quarter, count(1)
from (
select year,
case
when month < 4 then 1
when month < 7 then 2
when month < 10 then 3
else 4
end as quarter
from table
) as result
group by year, quarter

D. SQL如何查询一张表的所有字段并按其中一个字段进行分组

1、创建测试表，

create table test_group_cols(id number, value varchar2(20), remark varchar2(20));

E. sql语句按照两个字段分组然后查询出每一组中的最大值。

select a,b,max(c) c

from tab
group by a,b

F. 用SQL按两个字段分组查询

SELECT month,no,money=SUM(MONEY) FROM TABLENAME GROUP BY MONTH,NO ORDER BY MONTH,NO
上面是第一个结果。

第二个这样得到：
select month as [m-n],
(select sum(money) from tablename b where b.month=a.month and b.no=1) as [1],
(select sum(money) from tablename b where b.month=a.month and b.no=2) as [2],
(select sum(money) from tablename b where b.month=a.month and b.no=3) as [3]
from
(select distinct month from tablename) a