[英]count rows for particular value from different table both table contains one same column?
Account(Acc_no, branch_name,balance)
Depositor(cust_name,Acc_no)
Find no. 找到没有。 of depositors at each branch? 每个分行的存款人数目?
SELECT A.branch_name, COUNT(D.cust_name) FROM Account A INNER JOIN Depositor D GROUP BY A.branch_name
希望这可以帮助
从ACCOUNT.ACC_NO = DEPOSITOR.ACC_NO GROUP BY BRANCH_NAME的ACCOUNT内部联接存款人中选择ACCOUNT.BRANCH_NAME,COUNT(DEPOSITOR.CUST_NAME);
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