1.2 KiB
Executable File
1.2 KiB
Executable File
title, language
| title | language |
|---|---|
| VAR_SAMP,VARIANCE_SAMP | zh-CN |
VAR_SAMP,VARIANCE_SAMP
description
Syntax
VAR_SAMP(expr)
返回expr表达式的样本方差
example
MySQL > select var_samp(scan_rows) from log_statis group by datetime;
+-----------------------+
| var_samp(`scan_rows`) |
+-----------------------+
| 5.6227132145741789 |
+-----------------------+
##keyword
VAR_SAMP,VARIANCE_SAMP,VAR,SAMP,VARIANCE