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数据库系统原理与实践——修复第四次作业中的错误

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原先的表达式含义是只能购买RS或CS而没买别的，新的含义才是同时购买RS和CS。
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423A35C7 2024-10-20 16:18:38 +08:00
parent 2a10a2adc5
commit 0a60c93ef6
1 changed files with 8 additions and 7 deletions
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数据库系统原理与实践/平时作业/第四次作业.tex
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@ -198,16 +198,17 @@ from (select account.ACCOUNT_ID, OPEN_BRANCH_ID, AVAIL_BALANCE, max_avail_balanc
\begin{minted}{SQL} \begin{minted}{SQL}
select individual.ID_NUMBER 身份证号, concat(individual.LAST_NAME, individual.FIRST_NAME) 姓名全名 select individual.ID_NUMBER 身份证号, concat(individual.LAST_NAME, individual.FIRST_NAME) 姓名全名
from individual from individual
where not exists(select * where not not exists(select * from account where PRODUCT_CD = 'CS' and account.CUST_ID = individual.CUST_ID)
from account and not not exists(select * from account where PRODUCT_CD = 'RS' and account.CUST_ID = individual.CUST_ID);
where PRODUCT_CD != 'CS' and PRODUCT_CD != 'RS' and account.CUST_ID = individual.CUST_ID);
\end{minted} \end{minted}
\begin{csv} \begin{csv}
,身份证号,姓名全名 ,身份证号,姓名全名
1,41032619780815564X,许文强 1,350403198204222299,尤青
2,370900196802069281,何婕 2,41032619780815564X,许文强
3,320623197108259227,施珊珊 3,370900196802069281,何婕
4,321111197703197600,孔庆东 4,450881196612220768,吕东
5,320623197806169227,严匡
6,320623197108259227,施珊珊
\end{csv} \end{csv}
} }