来自两个不同表的两列，在MYSQL中没有任何连接

Question

I want to know if we can display 2 columns from two different table with out creating any join.

Scenario is that I want to display values present in one column from table1 along with values in column two from Table 2. these two tables dont have any common column to have any kind of join.

Expected Output:

Column1 Column2
A        1
B        4
C        9
D        13
E
F

Answer 1

Ok, I think I can get you started.

Create a UNION query where select the column you want and add a constant column that we'll use later.

SELECT column1 as col , 'T1' as tbl FROM table1;
UNION
SELECT other_column as col , 'T2' as tbl FROM table2;

This will give a table with 2 column

col | tbl
----------
 1  | T1
 2  | T1
 a  | T2
...

Then you can make a Pivot table query using 'tbl' as the headers. I'm terrible with Pivot tables, but some research might get you there. Or maybe some will edit this answer to add that information.

You may also be able to do something with subqueries to get the desired result.