SQL Server 执行计划
原文英文，约1200词，阅读约需5分钟。发表于：。There are some questions that those who are familiar with the T-SQL dialect of SQL ask themselves: Why is my query working slowly? Does the query I wrote use an index? Why is the index I created...
执行计划是SQL查询优化器生成的最佳执行方案，用于分析查询性能。执行过程包括解析、逻辑处理、优化和存储引擎执行。执行计划有估计和实际两种形式，通常以图形方式表示。
