VAR_POP() OVER ...
All functions > WINDOW FUNCTION > VAR_POP() OVER ...
Returns the population variance over the window frame.
Syntax
Diagram(
Sequence(
Terminal("VAR_POP"),
Terminal("("),NonTerminal('expr'),Terminal(")"),
Terminal("OVER"),
Terminal("("),
NonTerminal("over_clause"),
Terminal(")"),
)
)| Parameter | Type | Required | Description |
|---|---|---|---|
expr | EXPRESSION | Yes | Numeric expression to compute variance of |
over_clause | OVER CLAUSE | Yes | OVER (PARTITION BY ... ORDER BY ... [FRAME ...]) |
Notes
- Computes population variance (divides by N) over a window of rows
- NULL values are ignored in the calculation