Find The First Occurrence Of Multiple Record Entries
Mar 8, 2008
As my screen name implies, I am a new to Access and I’m seeking some input to resolve an issue. I have tried numerous queries, read MSDN forums and Access help w/o success. I hope someone would have some ideas.
See ATTACHMENT for screen shot of the following scenario:
Two tables in a one-to-many relationship. The parent table (tblAdmByWard) contains the autonumber primary key (PatientID) and additional fields that will not change while the child table (tblContStayEval) has a corresponding field (i.e. PatientID) to secure referential integrity PLUS additional fields as shown that are evaluated and updated daily. During the update the current date is entered (DateOfReview) along with additional info thus creating a new daily record in the child table.
I would like to query the child table (tblContStayEval) to find and return ONLY the first occurrence (DateOfReview) that the criteria (Variance) was selected…i.e.2/24/2008 as illustrated in the screen shot. This needs to occur for all (PatientID) records but exclude any subsequent and/or similar selections. By “similar” I mean the date will be different for each record in the child table while the data in the other associated fields may or may not be.
I hope I explained this okay as I’m not sure how to go about this. Any ideas or thoughts would be appreciated.
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Code:
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Code:
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Hi Folks,
I was just wondering if its possible, i'm sure it is.......
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-G
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0041980041
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Hi all
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Regards
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SHORT_DESCRIPTION
unable to view
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to 2
view 1
send 1
out 1
some 1
stuff 1
what 1
is 1
going 1
on 1
Is this possible?
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May 25, 2005
I am trying to customize one of my query table, so that it shows the latest review date of an employee (with multiple entries). I have gotten the SQL statement to work so that it shows the latest employee review date which is greater than the current date. But if the employee has 2 records after the current date and I want it to show the latest entry of the 2. I don't know to put add a sub-Select statement or whether to add another criteria in the Where criteria.
e.g. Current Date = May 25, 2005If Employee A's next review date is set for June 1, 2005 but has already been reviewed (the next review date is May 31, 2006). The query will show the June 1, 2005 and not the latest entry of May 31, 2006.
Because there are 2 review dates that are after the current date. What should I do to make only the latest entry appear?
Below is the my VBA code so far, which produces the above result.
SELECT tblEmp.fname, tblEmp.lname, tblEmpWorkHistory.[current store], tblEmp.position, tblEmpSalaryHistory.salary, tblEmpSalaryHistory.next_review_date
FROM (tblEmp INNER JOIN tblEmpSalaryHistory ON tblEmp.ssn=tblEmpSalaryHistory.ssn) LEFT JOIN tblEmpWorkHistory ON tblEmp.ssn=tblEmpWorkHistory.ssn
WHERE (((tblEmpSalaryHistory.next_review_date)>Now() And (tblEmpSalaryHistory.next_review_date)<=[Please enter the Next Review Date]))
ORDER BY tblEmpSalaryHistory.next_review_date;
My brain is stuck and can't figure it out. I hope any fresh mind could help me out. Thanks in advance.
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