Oracle Plsql Var_samp Function
Oracle / PLSQL: VAR_SAMP Function
This Oracle tutorial explains how to use the Oracle/PLSQL VAR_SAMP function with syntax and examples.
Description
The Oracle/PLSQL VAR_SAMP function returns the sample variance of a set of numbers.
Syntax
The syntax for the VAR_SAMP function in Oracle/PLSQL is:
VAR_SAMP( expression )Parameters or Arguments
- expression
A numeric expression that is used in the calculation.
Returns
The VAR_SAMP function returns a numeric value.
Note
- The VAR_SAMP function eliminates all null values before performing its calculations.
Applies To
The VAR_SAMP function can be used in the following versions of Oracle/PLSQL:
- Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i
Example
Let's look at some Oracle VAR_SAMP function examples and explore how to use the VAR_SAMP function in Oracle/PLSQL.
For example:
select VAR_SAMP(char_length)
from all_tab_columns;