MEDIAN_TDIGEST

Aggregate function.

The MEDIAN_TDIGEST() function computes the median of a numeric data sequence using the t-digest algorithm.

caution

NULL values are not counted.

Syntax

MEDIAN_TDIGEST(<expr>)

Arguments

Arguments	Description
<expr>	Any numerical expression

Return Type

the type of the value.

Example

Create a Table and Insert Sample Data

CREATE TABLE exam_scores (
  id INT,
  student_id INT,
  score INT
);

INSERT INTO exam_scores (id, student_id, score)
VALUES (1, 1, 80),
       (2, 2, 90),
       (3, 3, 75),
       (4, 4, 95),
       (5, 5, 85);

Query Demo: Calculate Median Exam Score

SELECT MEDIAN_TDIGEST(score) AS median_score
FROM exam_scores;

Result

|  median_score  |
|----------------|
|      85.0      |