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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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提交日期 题目名称 提交代码
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%'
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%'
2025-08-28 2000年以前出生的男歌手  
select * from singer_info 
where birth_date < '2000-01-01' and gender = 'm'
2025-08-11 21世纪上市的银行  
select * from stock_info where list_date >= '2000-01-01' and industry = '银行' order by list_date
2025-08-11 输出地区为北京的所有银行  
select * from stock_info 
where area = '北京' and industry = '银行'
order by list_date
2025-08-05 输出地区为北京的所有银行  
select * from stock_info where area = '北京'
 order by list_date desc
2025-08-05 输出地区为北京的所有银行  
select * from stock_info where area = '北京'
 order by list_date