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问答 2021-10-20 来自：开发者社区

SQL语句中（+）是什么意思啊？？

经常看到别人的SQL语句中有（+）这个符号，请问这是什么意思？要详细点的

问答 2016-06-28 来自：开发者社区

sphinx的sql配置项sql语句的$start和$end是什么意思？

例如：例如这条配置项中的$start和$end是什么意思呢？是传递的参数吗？还是自己初始化定义的？$start和$end的意思是什么呢？我有必要在sql_query配置像（即indexer的sql执行语句中使用$start和$end吗？）初学sphinx，讲述的有点乱。

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更新时间 2023-01-09 08:43:24

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