VARIANCE_SAMP,VARIANCE_SAMP
Description
Syntax
VAR SAMP (expr)
Returns the sample variance of the expr expression
example
MySQL > select var_samp(scan_rows) from log_statis group by datetime;
+-----------------------+
| var_samp(`scan_rows`) |
+-----------------------+
| 5.6227132145741789 |
+-----------------------+keywords
VAR SAMP, VARIANCE SAMP,VAR,SAMP,VARIANCE