jdbc(jdbc)

今天跟着网课学习了jdbc的增删改查操作,刚开始的时候表格建错了,导致查询永远错误,修正表格之后可以运行

明日按学习Dao

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Today, I learned the operation of adding, deleting, modifying and querying JDBC from the online class. At the beginning, the table was created incorrectly, resulting in an eternal error in the query. After correcting the table, it can be run

Learn by tomorrow Dao