通過傳遞一些常量字符串變量從數據庫導出到csv文件

Question

假設我的數據庫表結構如下：

he     haddress hage   she        saddress     sage
Sam      USA    25   Jenny      germany     21
John     UK     32   Anne       france      29
keith    USA    27   nicole     france      21

我想使用以下命令將此詳細結果集導出到csv文件中：

select he, haddress, hage, she, saddress, sage into outfile '/tmp/test1.csv' 
fields terminated by ','
lines terminated by '\n' from table_name;

它創建csv文件，格式如下：

Sam,USA,25,Jenny,germany,21
John,UK,32,Anne,france,29
keith,USA,27,nicole,france,21

現在我想要上面如下：

Sam,address,USA,age,25,knows,Jenny,address,germany,age,21
.....
.....
.....

如何在生成csv文件時傳遞這些字符串。

Answer 1

select he, 'address', haddress, 'age',  hage, 'knows', she, 'address', saddress, 'age' sage into outfile '/tmp/test1.csv' 
fields terminated by ','
lines terminated by '\n' from table_name;