explain+sql
时间: 2023-11-15 13:55:33 浏览: 42
EXPLAIN SQL是用于分析和优化SQL语句性能的工具。通过执行EXPLAIN关键字加上需要分析的SQL语句,可以获取SQL执行计划的详细信息。在执行计划中,可以查看各个步骤的执行顺序、使用的索引以及其他相关参数。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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