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LearnSQL 为世界各地的学生和教育工作者提供了学习、教授和练习 SQL 的独特机会。如果您想为班级项目或职业发展学习 SQL,该资源将是您的最佳选择。
为了帮助学生迈出学习 SQL 的第一步,LearnSQL 提供了免费的 SQL 基础课程。该课程包括 129 个互动练习,帮助学员掌握如何处理一个或多个表中的数据。学员将学习如何使用各种 JOIN 操作符、GROUP BY 和聚合函数来创建信息丰富的报告,并开始探索子查询。这是初学者的理想课程。
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