Question

So, I have two tables, Table R and Table N. The data in Table R is from Table N. My problem is I don’t know the SELECT query that will display the result such as below, because there are 4 names, and SQL can only choose 1. Is there a query or any other way to get the result?

Table R:
Id1 Id2 Id3 Id4
1   3   5   7
2   4   6   8

Table N:
Id  Name
1   A
2   B
3   C
4   D
5   E
6   F
7   G
8   H

After the SELECT statement, the result should look like this:

Name1   Name2   Name3   Name4
A       C       E       G
B       D       F       H

Anyway, thanks for helping. ^_^

Answer 1

SELECT
  N1.Name AS `Name1`,
  N2.Name AS `Name2`,
  N3.Name AS `Name3`,
  N4.Name AS `Name4`
FROM
  R
INNER JOIN
  N N1
ON
  N1.Id = R.Id1
INNER JOIN
  N N2
ON
  N2.Id = R.Id2
INNER JOIN
  N N3
ON
  N3.Id = R.Id3
INNER JOIN
  N N4
ON
  N4.Id = R.Id4