什么数据库?以下是参考
MySQL:
SELECT DATE_FORMAT(your_datetime_column, '%Y-%m-%d %H:%i') AS formatted_datetime
FROM your_table;
SQL server:
SELECT FORMAT(your_datetime_column, 'yyyy-MM-dd HH:mm') AS formatted_datetime
FROM your_table;
Oracle:
SELECT TO_CHAR(your_datetime_column, 'YYYY-MM-DD HH24:MI') AS formatted_datetime
FROM your_table;