count(*) as cnt是什么意思
来源:百度知道 编辑:UC知道 时间:2024/06/27 12:10:34
这个基本在于group by 一起使用,就是说你的结果每天记录都是汇总过的数
count(×)意思由几条记录汇总后的结果,列名为 cnt
将count(*) 里面所有的字段以 cnt命名 也就是本来是 那个列名的 列名改为 cnt
输出以cnt为字段名的所有数值。
将count(*)命名为cnt
关于count as的问题
SELECT @CNT=COUNT(*) FROM TABLE1 WHERE [NAME]= @ADDRNAME
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