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提交日期 题目名称 提交代码
2025-03-30 经过第四象限的所有函数 
select * from numbers_for_fun
where 
(a=0 and b>=0 and c<0) or
(a=0 and b<0) or
 	(a<0) or
(a>0 and (c<0 or (b<0 and a*c*4<b*b)))
2025-03-30 经过第四象限的所有函数 
select * from numbers_for_fun
where 
(a=0 and b>=0 and c<0) or
(a=0 and b<0) or
 	(a<0) or
(a>0 and (c<0 or (b<0 and a*b*4<b*b)))
2025-03-30 北京有雪的日子 
select dt,    tmp_h,    tmp_l,con    wnd
from weather_rcd_china 
where con like '%雪%' and city = 'beijing'
2025-03-30 北京有雪的日子 
select dt,tmp_h,tmp_l,con,wnd from weather_rcd_china
where city = 'beijing' and con like '%雪%'
2025-03-30 北京有雪的日子 
select dt,tmp_h,tmp_l,wnd from weather_rcd_china
where city = 'beijing' and con like '%雪%'
2025-03-30 经过第四象限的所有函数 
select * from numbers_for_fun
where 
	(a=0 and c<0) or
(a<0) or
(a>0 and (c<0 or (b < 0 AND 4*a*c < b*b)))
2025-03-30 不经过第二象限的所有函数 
select * from numbers_for_fun
where 
	(a=0 and b>=0 and c<=0) or
(a<0 and ((b>=0 and c<=0) or (b<0 and c<=(b*b/4/a))))
2025-03-30 经过3个象限的一元一次函数 
select * from numbers_for_fun
where a=0 and b!=0 and c!=0
2025-03-30 经过至少两个象限的一元一次函数 
select * from numbers_for_fun
where a=0 and b!=0
2025-03-30 经过至少两个象限的一元一次函数 
select * from numbers_for_fun
where a=0
2025-03-30 一元一次函数形成的三角形面积 
select * from numbers_for_fun
where a=0 and b!=0 and abs((c*c)/(2*b)) >=5;
2025-03-30 一元一次函数形成的三角形面积 
select * from numbers_for_fun
where a=0 and b!=0 and (c*c)/(2*b) >=5;
2025-03-30 一元一次函数形成的三角形面积 
select * from numbers_for_fun
where a=0 and b!=0 and c*c/b >=5;
2025-03-30 一元一次函数形成的等腰三角形 
select * from numbers_for_fun
where a=0 and b in(1,-1) and c!=0
2025-03-30 一元一次函数形成的等腰三角形 
select * from numbers_for_fun
where a=0 and b!=0 and c!=0 and c = b*c*-1
2025-03-30 开口向上的一元二次函数 
select * from numbers_for_fun 
where a>0
2025-03-29 必过(-1, 0)的一元一次函数 
select * from numbers_for_fun
where a=0 and b!=0 and c-b =0
2025-03-29 必过(-1, -1)的一元一次函数 
select * from numbers_for_fun 
where a=0 and b!=0 and c-b = -1
2025-03-29 必过(0, 1)的一元一次函数 
select * from numbers_for_fun
where a=0 and b!=0 and c = 1
2025-03-29 不经过第二象限的一元一次函数 
select * from numbers_for_fun
where a=0 and b!=0 and (b>0 and c<=0)