PostgreSQL查询根据id返回多行

Question

I am trying to figure out how I can select multiple rows from a table, based on the id column. Something like this:

select * from table where id=1 or id=2 or id=3

Should I loop through every id and perform a query for each iteration?

Answer 1

select *
from table
where id in (1, 2, 3)

Answer 2

If you want to have results where id = 1 and results where id = 2 and results where id = 3 , you have to use a different logic.

You actually want results where id = 1 or id = 2 or id = 3

Or you want results where id in (1, 2, 3)

Or you want results where id between 1 and 3