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"count(*) 执行过程是怎样的"中错字 #95

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CLOUDERHEM opened this issue Mar 27, 2023 · 0 comments
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"count(*) 执行过程是怎样的"中错字 #95

CLOUDERHEM opened this issue Mar 27, 2023 · 0 comments

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@CLOUDERHEM
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看到 * 这个字符的时候,是不是大家觉得是读取记录中的所有字段值?

对于 selete *这条语句来说是这个意思,但是在 count(*) 中并不是这个意思。

selete *应该为select *

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