DISTINCT 关键字。，，``sql，SELECT DISTINCT column_name FROM table_name;，`，，这将返回 table_name 表中 column_name` 列的所有不重复值。DISTINCT 关键字。，，``sql，SELECT DISTINCT column_name FROM table_name;，`，，这将返回 table_name 表中 column_name` 列的所有不重复值。Powered By Z-BlogPHP 1.7.3