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用户解题统计

过去一年提交了

勋章 ①金银铜：在竞赛中获得第一二三名；②好习惯：自然月10天提交；③里程碑：解决1/2/5/10/20/50/100/200题；④每周打卡挑战：完成每周5题，每年1月1日清零。

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收藏日期 题目名称 解决状态
2025-09-03 海王发红包  已解决

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提交记录

提交日期 题目名称 提交代码
2025-09-03 美狗计  
select 
    replace(song_name,'人','狗') as new_song_name 
from song_info
where 
    song_name like '%人%'
2025-09-03 按歌手名字字符长度统计歌手个数  
select length (singer_name) ,count(singer_id) countfrom singer_info
group by length (singer_name)
2025-09-03 统计字符长度  
select 
    singer_name,
    char_length(singer_name) as len
from singer_info
2025-09-03 歌手名字大写  
select 
    upper(singer_name) as uppered_name 
from singer_info
2025-09-03 海王发红包  
SELECT 
            snd_usr_id
        FROM 
            tx_red_pkt_rcd
        GROUP BY 
            snd_usr_id
        HAVING 
            COUNT(CASE WHEN pkt_amt IN (520,200) THEN 1 END) >=5
2025-09-03 海王发红包  
SELECT 
            snd_usr_id
        FROM 
            tx_red_pkt_rcd
        WHERE 
            pkt_amt IN (200, 520)
        GROUP BY 
            snd_usr_id
        HAVING 
            COUNT(CASE WHEN pkt_amt IN (520,200) THEN 1 END) >=5
2025-08-28 输出特定日期上市的银行  
select * from stock_info 
where list_date between '2006-01-01' and '2006-09-01' and industry = '银行'
2025-08-28 输出特定日期上市的银行  
select * from stock_info 
where list_date between '2006-01-01' and '2006-09-01'
2025-08-28 A和K之间的手牌（3）  
select 
    *  
from 
    hand_permutations 
where 
    card1 between 'A' and 'K' and card2 between 'A' and 'K'
order by id
2025-08-28 A和K之间的手牌（2）  
select * from hand_permutations 
where card1 between 'A' and 'K' or card2 between 'A' and 'K'
2025-08-28 A和K之间的手牌（1）  
select * from hand_permutations 
where card1 between 'A' and 'K'
order by id
2025-08-28 A和K之间的手牌（1）  
select * from hand_permutations 
where card1 between 'J' and 'K'
order by id
2025-08-28 A和K之间的手牌（1）  
select * from hand_permutations 
where card1 between 'J' and 'K'
2025-08-28 A和K之间的手牌（1）  
select * from hand_permutations 
where card1 between 'j' and 'k'
2025-08-28 交易金额在5000至10000（含边界）的所有交易  
select * from cmb_usr_trx_rcd 
where trx_amt between 5000 and 10000
order by trx_amt desc
limit 5;
2025-08-28 交易金额大于10000元的所有交易  
select * from cmb_usr_trx_rcd 
where trx_amt > 100000
order by trx_amt desc
2025-08-28 大于J小于K的手牌  
select * from hand_permutations 
where (card1 > 'j' and card1 < 'k') and (card2 > 'j' and card2 < 'k')
2025-08-28 语文数学英语至少1门超过100分的同学  
select * from subject_score 
where chinese > 100 or math >100 or english > 100
2025-08-28 性别已知的听歌用户  
select * from qqmusic_user_info 
where (gender = 'f' or gender ='m')and birth_date like '1980%'
2025-08-28 性别已知的听歌用户  
select * from qqmusic_user_info 
where gender = 'f' or 'm' and birth_date like '1980%'