Mysql JOIN (multiple) tables

Question

I have 3 tables. 2 of them are the same (same columns, different data), and the third has some info data about other 2. Database looks like this:

Table 1:

+--------------+
|  ID | Name   |
+--------------+
| 1  | Table 2 |
| 2  | Table 3 |
+--------------+

Table 2:

+-------------------------------+
| Name | Temperature | Pressure |
+-------------------------------+
| Table 2 |    22    | 1013     |
+-------------------------------+

Table 3:

+-------------------------------+
| Name | Temperature | Pressure |
+-------------------------------+
| Table 3 |    20    | 1009     |
+-------------------------------+

I'm trying to JOIN all into one table, which should look like this:

+-------------------------------+
| Name | Temperature | Pressure |
+-------------------------------+
| Table 2 |    22    | 1013     |
| Table 3 |    20    | 1009     |
+-------------------------------+

Any idea how sql query should look like?

Thanks

Answer 1

Try union:

SELECT table1.name, temperature, pressure 
FROM table1 inner join table2 ON
table1.name = table2.name
UNION
SELECT table1.name, temperature, pressure 
FROM table1 inner join table3 ON
table1.name = table3.name

Edit: You can make another select from those results, then you can limit, group or order:

SELECT * FROM
(
    SELECT table1.name, temperature, pressure 
    FROM table1 inner join table2 ON
    table1.name = table2.name
    UNION
    SELECT table1.name, temperature, pressure 
    FROM table1 inner join table3 ON
    table1.name = table3.name
) as JoinedTable
LIMIT 0, 1

Edit 2: To have only one row from each table (table 2 and table 3) you can use limit/group by/order by for each query (assuming you have column date):

SELECT table1.name, temperature, pressure 
FROM table1 inner join table2 ON
table1.name = table2.name
ORDER BY date DESC
LIMIT 0, 1
UNION
SELECT table1.name, temperature, pressure 
FROM table1 inner join table3 ON
table1.name = table3.name
ORDER BY date DESC
LIMIT 0, 1