SQL降序的相关内容

文章 2024-09-23 来自：开发者社区

SQL Server的Descending Indexes降序索引

在 SQL Server 中，降序索引（Descending Indexes）是一种特殊类型的索引，它允许在索引定义中指定列的排序顺序为降序。一、降序索引的作用优化查询性能当查询中经常涉及按照特定列的降序排序时，降序索引可以显著提高查询的执行速度。例如，如果有一个查询需要获取按照某个日期列降序排列的记录，使用降序...

问答 2022-02-15 来自：开发者社区

sql查询降序和升序的问题

select * from news where typeid="000501";这条查询语句用升序和降序怎么写?谢谢

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更新时间 2024-09-24 09:10:30

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