只在mysql中選擇特定的列

Question

我的表-1有20列，而表-2有15列。這裏我想通過用戶ID加入兩個表格。 我用這個波紋管查詢

SELECT * FROM table_checkout_bidpack as t1 inner JOIN table_user_information 
as t2 ON t1.user_id=t2.user_id 

此查詢選擇35列，但我需要在第二個表

我知道這項工作列（USER_NAME）選擇

select t1.col1,t1.col2,t1.col3,t1.col4,.....,t2.user_name 
FROM table_checkout_bidpack as t1 inner JOIN table_user_information 
as t2 ON t1.user_id=t2.user_id 

這看起來很大任何其他方式做到這一點

Answer 1

select t1.*,t2.user_name 
FROM table_checkout_bidpack as t1 inner JOIN table_user_information 
as t2 ON t1.user_id=t2.user_id 

Answer 2

select t1.*,t2.user_name 
FROM table_checkout_bidpack as t1 inner JOIN table_user_information 
as t2 ON t1.user_id=t2.user_id 

*是通配符選擇器，它本身將匹配所有表中的所有列，但如果以table.作爲前綴，它將僅匹配該表中的列。