Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
?
Solved

MSAccess Query Question

Posted on 2014-02-27
4
Medium Priority
?
325 Views
Last Modified: 2014-04-23
Hello,

I have the following table structure:

TaskJob: (definitions of tasks)
TaskJobID - int
TaskJobName - string
TaskJobDaysToAlert - int

Tasks: (entry for every day the the particular task is completed)
TaskID - int
TaskJobID - int
TaskDateComplete - date
TaskSuccess - bool

I'm trying to construct a query in MSAccess to show me the TaskJob's that have not had a successful run in the allowed number of days to alert.  So if a TaskJob hasn't had a successful task in the last three days, it's info should be returned by the query.   Also, if the job hasn't run at all in 3 days, then the query should also return that.

I've got the DateDiff ('d', TaskDateComplete, Date()) part concept working, but I'm not sure how to setup a join on the tables.  When I attempt to use a GROUP BY on one of the subsets for MAX (TaskDataComplete), I also need it to only give me the MAX where TaskSuccess is true.  

Can anyone offer any pointers?

Thanks
0
Comment
Question by:compsol1993
  • 2
  • 2
4 Comments
 
LVL 61

Expert Comment

by:mbizup
ID: 39892225
Try this:

SELECT * 
FROM TaskJob j LEFT JOIN Tasks t ON j.TaskJobID  = t.TaskJobID 
WHERE (TaskDateComplete BETWEEN (Date() - 3) AND Date()) OR (TaskDateComplete IS NULL)

Open in new window

0
 

Author Comment

by:compsol1993
ID: 39892231
Thanks, that does help, but I also need to consider how to incorporate TaskSuccess = True

I'll try adding it to the WHERE clause logic, does that seem correct?
0
 
LVL 61

Accepted Solution

by:
mbizup earned 2000 total points
ID: 39892241
Yes... I think you can also drop the = NULL check which I had included to test for jobs that aren't present in the tasks table:

SELECT * 
FROM TaskJob j LEFT JOIN Tasks t ON j.TaskJobID  = t.TaskJobID 
WHERE (TaskDateComplete BETWEEN (Date() - 3) AND Date()) AND j.TaskSuccess = TRUE

Open in new window

0
 

Author Closing Comment

by:compsol1993
ID: 40017715
Thanks
0

Featured Post

What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Explore the ways to Unlock VBA Project Password Excel 2010 & 2013 documents. Go through the article and perform the steps carefully to remove VBA Excel .xls file.
Windows Explorer lets you open cabinet (cab) files like any other folder. In VBA you can easily handle normal files and folders, but opening and indeed creating cabinet files takes a lot more - and that's you'll find here.
With Microsoft Access, learn how to specify relationships between tables and set various options on the relationship. Add the tables: Create the relationship: Decide if you’re going to set referential integrity: Decide if you want cascade upda…
The Relationships Diagram is a good way to get an overall view of what a database is keeping track of. It is also where relationships are defined. A relationship specifies how two tables connect to each other. As you build tables in Microsoft Ac…
Suggested Courses

578 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question