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GREATEST

Description​

Compares multiple expressions and returns the greatest value among them. If any argument is NULL, the function returns NULL.

Syntax​

GREATEST(<expr> [, ...])

Parameters​

ParameterDescription
<expr>A list of expressions to compare. Supports TINYINT, SMALLINT, INT, BIGINT, LARGEINT, FLOAT, DOUBLE, STRING, DATETIME, and DECIMAL types.

Return Value​

  • Returns the largest value among the given expressions.
  • If any argument is NULL, returns NULL.

Examples​

SELECT GREATEST(-1, 0, 5, 8);
+-----------------------+
| GREATEST(-1, 0, 5, 8) |
+-----------------------+
| 8 |
+-----------------------+
SELECT GREATEST(-1, 0, 5, NULL);
+--------------------------+
| GREATEST(-1, 0, 5, NULL) |
+--------------------------+
| NULL |
+--------------------------+
SELECT GREATEST(6.3, 4.29, 7.6876);
+-----------------------------+
| GREATEST(6.3, 4.29, 7.6876) |
+-----------------------------+
| 7.6876 |
+-----------------------------+
SELECT GREATEST('2022-02-26 20:02:11', '2020-01-23 20:02:11', '2020-06-22 20:02:11');
+-------------------------------------------------------------------------------+
| GREATEST('2022-02-26 20:02:11', '2020-01-23 20:02:11', '2020-06-22 20:02:11') |
+-------------------------------------------------------------------------------+
| 2022-02-26 20:02:11 |
+-------------------------------------------------------------------------------+