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Oracle VARIANCE function
The Oracle/PLSQL VARIANCE function returns the dispersion of a set of numbers.
Oracle/PLSQL syntax of the VARIANCE function
VARIANCE(expression_id )
where:
- expression_id – is a numeric expression.
The VARIANCE function returns a numeric value.
You can use the VARIANCE function in the following versions of Oracle/PLSQL
| Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i, Oracle 8i |
Let us consider an example of the VARIANCE function and learn how to use the VARIANCE function in Oracle/PLSQL.
select VARIANCE(char_length_id)
from all_tab_columns_id;
STDDEV(), VARIANCE(),COUNT() Functions
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