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6 paź 2017 · One option is to avoid using LEAST: SELECT MIN( dt ) FROM (. SELECT full_date FROM lopes.vehicle_data UNION ALL. SELECT bithday FROM lopes.ad_trf_day UNION ALL. SELECT bithday FROM lopes.ad_day_rec UNION ALL. SELECT bithday FROM lopes.ad_day_rec UNION ALL. SELECT bithday FROM lopes.ad_day UNION ALL. SELECT bithday FROM lopes.ad_poi_day.
SELECT LEAST( IFNULL(@column1, @column2), IFNULL(@column2, @column1) ) AS least_date; -- Returns: NULL (if both columns are null) or the least value
4 kwi 2024 · If one or more arguments aren't NULL, then NULL arguments are ignored during comparison. If all arguments are NULL , then LEAST returns NULL . Comparison of character arguments follows the rules of Collation Precedence (Transact-SQL) .
Run a SELECT statement that returns the lowest non-null value in each row of the table: SELECT col_1, col_2, col_3, col_4, LEAST_IGNORE_NULLS(col_1, col_2, col_3, col_4) AS least_ignore_nulls FROM test_least_ignore_nulls ORDER BY col_1;
Definition and Usage. The LEAST () function returns the smallest value of the list of arguments. Note: See also the GREATEST () function. Syntax. LEAST (arg1, arg2, arg3, ...) Parameter Values. Technical Details. Works in: From MySQL 4.0. More Examples. Example. Return the smallest value of the list of arguments:
LEAST. Returns the smallest value from a list of expressions. LEAST supports all data types, including VARIANT. See also: LEAST_IGNORE_NULLS. Syntax. LEAST(( <expr1> [ , <expr2> ... ] ) Arguments. exprN. The arguments must include at least one expression. All the expressions should be of the same type or compatible types. Returns.
The SQL functions greatest and least take one or more arguments and return the largest or smallest value if none of the arguments is null. SELECT GREATEST(1, 2, 3) FROM … Greatest and least are scalar functions, not aggregate functions.
