Oracle数据库别名
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2022-06-02 13:42:10
创建users表；
输入select * from users;
合并两列值为一列，取别名users_info；
输入：select name || ','...
创建users表；
输入select * from users;
合并两列值为一列，取别名users_info；
输入：select name || ',' || age || '岁' AS users_info from users order by age,name;