如何在连接表中选择单个表的所有列？

Question

I have a query that is like this:

SELECT * FROM A JOIN B

Table A and B are almost equal, but I use the join to filter on certain rows. Now my result table is having all columns twice, and this is causing referencing trouble where I am using this table. Therefore I would like to only show table A 's columns. Is there a more easy way to achieve this than retyping all column names on the spot of * ?

Answer 1

If you only want the columns from A , then use:

select A.*

You can add additional columns as you like:

select A.*, B.special_column