Question

I have two identical tables with the same number of rows but with different data

Table 1:

Name
---
A
B
C

Table 2:

Name
---
D
E
F

I need to join it like in one table.

Name1   Name2
----    -----
A       D
B       E
C       F

Anyone have any idea?

Answer 1

If there is no direct join then you could “manufacture” one.

i.e. given your example data:

WITH t1
  AS (SELECT name,
             rownum as rnum
        FROM table1
       ORDER BY name),
     t2
  AS (SELECT name,
             rownum as rnum
        FROM table2
       ORDER BY name)
SELECT *
  FROM t1
 INNER JOIN t2 USING (rnum);

RNUM NAME NAME_1
   1 A    D
   2 B    E
   3 C    F

EDIT: After Benoit’s correct assertion I have added an ORDER BY (though you can order it by whatever criteria you need).