This article has explored some common database functions such as updating a database, displaying query results, joining two tables together, and filtering the results using various filter conditions.

本文已经开发了一些普通的数据库功能，例如：更新一个数据库、显示查询结果、连接两个数据表、以及使用不同的过滤条件筛选结果等。

youdao

This article has explored some common database functions such as updating a database, displaying query results, joining two tables together, and filtering the results using various filter conditions.

本文已经开发了一些普通的数据库功能，例如：更新一个数据库、显示查询结果、连接两个数据表、以及使用不同的过滤条件筛选结果等。

youdao