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@@ -0,0 +1,17 @@
+View作业
+
+1）编写视图实现查询出所有银行卡账户信息，显示卡号，身份证，姓名，余额  
+
+```sql
+select * from BankCard 
+
+create view V_non (卡号,身份证,姓名,余额)
+as 
+(select CardNo,AccountCode,RealName,CardMoney 
+from BankCard b 
+inner join AccountInfo a on b.AccountId=a.AccountCode)
+
+select 卡号,身份证,姓名,余额 from V_non
+select * from V_non
+```
+