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Joining two columns

Hi, I have two tables, one containing DoB and one containing Age. I'd like to be able to create a thrird table with both DoB and Age side by side. Test contains Age

MariaDB [mysql]> select * from test;
+------+
| Age  |
+------+
|    8 |
|    8 |
|    9 |
|    8 |
|    9 |
|    8 |
|    9 |
|    8 |
|    8 |
|    8 |
|    8 |
|    8 |
|    9 |
|    9 |
|    9 |
|    8 |
|    8 |
|    8 |
|    9 |
|    9 |
|    8 |
|    9 |
|    9 |
|    8 |
|    8 |
|    8 |
|    9 |
|    8 |
|    9 |
|    9 |
|    8 |
+------+
31 rows in set (0.000 sec)

test1 contains DoB

MariaDB [mysql]> select * from test1;
+------------+
| DoB        |
+------------+
| 2010-11-15 ||    8 |

| 2010-07-12 |
| 2010-03-12 |
| 2010-09-23 |
| 2010-02-12 |
| 2010-07-01 |
| 2010-03-07 |
| 2010-12-27 |
| 2010-08-25 |
| 2010-08-11 |
| 2010-09-25 |
| 2010-08-21 |
| 2010-03-24 |
| 2010-04-08 |
| 2010-05-21 |
| 2010-12-07 |
| 2010-12-22 |
| 2010-09-15 |
| 2010-04-06 |
| 2010-05-14 |
| 2010-11-21 |
| 2010-05-27 |
| 2010-04-20 |
| 2010-12-14 |
| 2010-12-28 |
| 2010-07-09 |
| 2010-03-14 |
| 2010-07-30 |
| 2010-01-28 |
| 2010-04-20 |
| 2010-08-03 |
+------------+
31 rows in set (0.000 sec)

I'd like to get a table with the output as such:

| 2010-11-15 ||     8|
| 2010-07-12 ||     8|
| 2010-03-12 ||     9|
| 2010-09-23 ||     8|
| 2010-02-12 ||     9|
| 2010-07-01 ||     8|
| 2010-03-07 ||     9|
| 2010-12-27 ||     8|
| 2010-08-25 ||     8|
| 2010-08-11 ||     8|
| 2010-09-25 ||     8|
| 2010-08-21 ||     8|
| 2010-03-24 ||     9|
| 2010-04-08 ||     9|
| 2010-05-21 ||     9|
| 2010-12-07 ||     8|
| 2010-12-22 ||     8|
| 2010-09-15 ||     8|
| 2010-04-06 ||     9|
| 2010-05-14 ||     9|
| 2010-11-21 ||     8|
| 2010-05-27 ||     9|
| 2010-04-20 ||     9|
| 2010-12-14 ||     8|
| 2010-12-28 ||     8|
| 2010-07-09 ||     8|
| 2010-03-14 ||     9|
| 2010-07-30 ||     8|
| 2010-01-28 ||     9|
| 2010-04-20 ||     9|
| 2010-08-03 ||     8|

Answer Answered by Ian Gilfillan in this comment.

Given what you've provided, there is no way to combine the two tables, as both tables contain a single field with nothing linking them. Take a look at the concept of foreign keys. Secondly, ''age'' is not a good choice for a database field, as its constantly changing, and can be generated from the date of birth at all times, for example with something like:

SELECT TIMESTAMPDIFF(YEAR, DoB, CURDATE()) AS age FROM test1;

For inserting data from one or more tables into another table, see INSERT SELECT.

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