How to merge two or more tables sorted according to date

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hello pls i need help on my school project. I have tables try1 and try2, i want to join the two showing the income and expenditure sorted with the date accordingly from the try1 and try2

try1
         +------+-------+--------+--------+
         |  id  | date  | name   |expensis|
         +------+-------+--------+--------+
         |  1   |17/11/1|  shoe  |   200  |
         +------+-------+--------+--------+
         |  2   |17/11/2|  books |   300  |
         +------+-------+--------+--------+
         |  3   |17/11/2| T.fair |   400  |
         +------+-------+--------+--------+
try2
         +------+-------+--------+--------+
         |  id  | date  | name   | source |
         +------+-------+--------+--------+
         |  1   |17/11/1|  Dad   |  1000  |
         +------+-------+--------+--------+
         |  2   |17/11/2| uncle  |        |
         +------+-------+--------+--------+
         |  3   |17/11/4|  Bro   | 150    |
         +------+-------+--------+--------+
    
    RESULT
             +-------+--------+--------+
             | date  |expensis| source |
             +-------+--------+--------+
             |17/11/1|  200   |  1000  |
             +-------+--------+--------+
             |17/11/2|  300   |        |
             +-------+--------+--------+
             |17/11/2|  400   |        |
             +-------+--------+--------+
             |17/11/4|        |  150   |
             +-------+--------+--------+

What I have tried:

SELECT u.date, b.amount, h.amount
FROM
  (SELECT Date FROM try1 UNION SELECT Date FROM try2) u
  RIGHT JOIN try1 b ON u.Date=b.Date
 RIGHT JOIN try2 h ON u.Date=h.Date

Posted 24-Nov-17 3:27am

Member 13224231

Updated 29-Nov-17 6:11am

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José Amílcar Casimiro 25-Nov-17 6:59am

select try2.date, try1.expensis, try2.source
from try1
right join try2
on try1.date = try2.date

1 solution

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CHill60 · Answer 1 · 2017-11-29T06:11:00

José Amílcar Ferreira Casimiro (@jafcasimiro) has given you one solution.

Here is a good CodeProject article for you to understand joins better
Visual Representation of SQL Joins[^]

And here is another one to help you understand how subqueries work:
SQL Server: Subqueries[^]

A couple of other points ...

a) you try to query on columns b.amount and h.amount but neither table has such a column name.

b) Avoid using "Reserved Words" for column names - for example date and name. If you do use them then remember to surround them with square brackets to distinguish between the column name and the type (or other reserved word).