Databases
StackOverflow2013
Postsdbo
POMysql include column with no rows returned for specific dates
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POMysql include column with no rows returned for specific dates
    primarykey
    data
    text
    <p>I would like to ask a quick question regarding a mysql query.</p> <p>I have a table named trans : </p> <pre><code>+----+---------------------+------+-------+----------+----------+ | ID | Date | User | PCNum | Customer | trans_In | +----+---------------------+------+-------+----------+----------+ | 8 | 2013-01-23 16:24:10 | test | PC2 | George | 10 | | 9 | 2013-01-23 16:27:22 | test | PC2 | Nick | 0 | | 10 | 2013-01-24 16:28:48 | test | PC2 | Ted | 10 | | 11 | 2013-01-25 16:36:40 | test | PC2 | Danny | 10 | +----+---------------------+------+-------+----------+----------+ </code></pre> <p>and another named customers :</p> <pre><code>+----+---------+-----------+ | ID | Name | Surname | +----+---------+-----------+ | 1 | George | | | 2 | Nick | | | 3 | Ted | | | 4 | Danny | | | 5 | Alex | | | 6 | Mike | | . . . . +----+---------+-----------+ </code></pre> <p>I want to view the sum of trans_in column for specific customers in a date range BUT ALSO include in the result set, those customers that haven't got any records in the selected date range. Their sum of trans_in could appear as NULL or 0 it doesn't matter...</p> <p>I have the following query : </p> <pre><code>SELECT `Date`, Customer, SUM(trans_in) AS 'input' FROM trans WHERE Customer IN('George','Nick','Ted','Danny') AND `Date` &gt;= '2013-01-24' GROUP BY Customer ORDER BY input DESC; </code></pre> <p>But this will only return the sum for 'Ted' and 'Danny' because they only have transactions after the 24th of January...</p> <p>How can i include all the customers that are inside the WHERE IN (...) function, even those who have no transactions in the selected date range??</p> <p>I suppose i'll have to join them somehow with the customers table but i cannot figure out how.</p> <p>Thanks in advance!!</p> <p>:)</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USCharles
    1. USktsangop
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload