Please Help With Query Logic
Oct 18, 2006
Access is making my brain hurt - can anybody please help?
Here's what I have and what I am trying to get it to do...
I have a table, maba_registrations, into which students are entered according to which course they are doing in which semester - eg -
autonumber student_id course_code semester year
1 1 A123 1 2006
2 2 A124 1 2006
3 2 A124 2 2006
4 2 A126 1 2006
5 3 A132 1 2006
What I need to do is to pull four subsets of data out of this table -
1) A unique list of courses that student x is taking in semester 1 (only) of a given year
2) A unique list of courses that student x is taking in semester 2 (only) of a given year
3) A unique list of courses that student x is taking over 2 semesters (both semester 1 and semester 2 of a given year)
4) A unique list of courses that student x is taking over 2 semesters (semester 2 of a given year and semester 1 of the following year)
Obviously there should be no overlap... and that's where I get a bit stuck
I can craft a simple query that will show me the courses a student is taking in semester 1 of a given year, but I cannot figure out how to get it to exclude those courses which are also still being taken in semester 2. In the above example, the query pulls out records 2 and 4 for student 2; I only want record 4.
I think what I need is to have 2 queries -
a) pulls out all courses for student x in semester 1 for the current year
b) pulls out all courses for student x in semester 2 for the current year
- and then subtract the results of query (b) from query (a) (ie remove the rows that are matched). Is there any way to do something like that?
Or is there a simple part of query syntax that I can use to make a query that just says "pull out all the courses for student x where semester=1 and there is no row for this course and this student where semester=2"?
Any ideas would be hugely appreciated!
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May 4, 2007
Hey guys, I'm a little lost in my logic here for some reason.
I have a table that has 6 dates. I'll label them as 1 to 6.
Date 1 > Date 2 > Date 3 > Date 4 > Date 5 > Date 6.
I would like to run a query to ensure that this holds true. Can anyone give me a little help on this?
Do I have to do an individual compare from 1 field to the 5 other fields 6 times? for example
Select if
Date 1 < Date 2
OR
Date 1 < Date 3
OR
Date 1 < Date 4
etc etc.?
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Apr 4, 2008
I realize my newbness shows here...
Im trying to run a query that looks in a table to see if product a and product b were purchased and then return the id but i never get any data, and I know there are some results that should be showing up. If I remove either one of the products it returns data but not when both are requested. here's the query:
SELECT [Copy Of data].id, data.purchase_product, data.purchase_product
FROM data INNER JOIN [Copy Of data] ON data.email = [Copy Of data].email
WHERE (((data.purchase_product)="ProdA") AND ((data.purchase_product)="ProdB"));
what am i not getting?
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May 11, 2006
I am not sure if I understand this...
I have MainTable, on which I base MainForm. I would like to have MainForm show only the records that have a null value in CertainField. If I write NullQuery to select only those records, can I redirect MainForm to NullQuery? Well, I know I can do that... but how does MainTable get updated with new records if MainForm is based on NullQuery????
Any help is greatly appreciated.
Tom
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Oct 8, 2014
I'm trying to create a new field based on two existing fields as part of a select query. Two tables in the query each have a "HOSPITAL" field which is an indicator for "Y" or "N" for each department (in the DEPTLOOKUP table) and for each facility (in the Facility Lookup table). I want to create a field whereby a new indicator is created so that a Y is given for each record only where the facility and department HOSPITAL indicator field is both "Y". I have attached a word document that has a screenshot of the query in design view as well as the access sql code.
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Jun 14, 2006
Have this table
ID | NAME | Progresscomplete | Release
1 | a | 20% | July
2 | b | 65% | July
3 | c | 33% | July
4 | h | 15% | Sept
5 | i | 30% | Sept
6 | r | 5% | Dec
7 | s | 50% | Dec
8 | t | 15% | Dec
9 | u | 20% | Dec
now I want to create a query that shows the Progresscomplete for each task as a percentage for a Release
so the total progress for each release is
July 300%
Sept 200%
Dec 400%
and the current level of progress for each release is
July 39.33% (118/300*100)
Sept 22.5 % (45/200*100)
Dec 22.5 % (90/400*100)
thus the current level of progress for each task within a release is
1 | a | 16.9% (20/118*100) | July
2 | b | 55% (65/118*100) | July
3 | c | 28% (33/118*100) | July
4 | h | 33% (15/45*100) | Sept
5 | i | 66% (30/45*100) | Sept
6 | r | 5% (5/90*100) | Dec
7 | s | 55% (50/90*100) | Dec
8 | t | 16.6% (15/90*100) | Dec
9 | u | 22% (20/90*100) | Dec
I have queries for the first two not sure about the last also
not sure if i should have the base of the last output be the current level of progress for each release or the total progress for each release
I have tried this for the last output
SELECT ID, NAME, ((Progresscomplete/Count(Progresscomplete))*100) AS currentprogresslevel, Release
FROM TEST_RawData
GROUP BY Release;
but get an error "tried to execute a query that does not include specified expression... as part of an aggregate function.
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Dec 19, 2005
I have a report that takes money values form several records and sums them up in various category's making a list of departments with the total amount of balance for each (positive and negative numbers). I need to categorize the positive values form the negative and calculate the totals of each and the grand final total (invoice style)
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Jan 28, 2006
I created a db, tested it with dummy info and all was fine. I then imported live data from another db. When I came to add new records, discovered that, in the table design, a default value of 0 (zero) has been entered for fields where a look up table is used (where I had used Autonumber for the ID). Solved that easily enough, but later I amended a text box to a combo box and the same thing happened. Why does it do this?
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Dec 8, 2005
Maybe someone knows the logic behind MS Access for the display of percents in the formating..... ie.... If you input 3 you get 300.00%. I really dont think ANY user would look at a form... with a field called...say "Commission percent" and expect an input of a 5 to return 500.00% Does this need to be corrected with coding?
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Apr 24, 2008
I am looking for some direction on how to approach this.
I have a table that has a field call DocumentID and I don't like it. I would like to create my own.
In the same table I also have 10 fields of data called L1, L2, to L10.
I would like my new DocumentID to be the 10 fields concatenated together, with a period between them unless the value of the field is null.
If this is a query I need to then move the data back to a table in the same database.
Any suggestions on a good strategy/approach?
Thanks
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Feb 26, 2007
I have been working on customizing MS ACCESS to
produce a report that involves one mathematical
computation from my input data. However, I've run
into a problem because I can't get the program to
carry out a logic command that would work fine in
MS Excel: the "IF" command. Specifically, what I'm
doing involves a calculation, where one data input is
subtracted from another data input, but if the difference
is a negative number, I would like to substitute the value
of ZERO. The closest I've come to achieving this is to
enter the condition ">0" while in Query Design mode, but
the problem with this approach is that if the difference
is a negative number, the report does not display the
data that resulted in the calculation of the negative number.
In other words, I want the data to be included in the report,
but I want a "Zero" to be substituted for all calculations that
produce a negative number. For example, if I enter a set of
data, and the two numbers that get subtracted are 40 minus
36, then the difference is positive 4, and so I want a "4" to
be displayed; But if the two numbers to be subtracted are
36 minus 40, the result is negative, and so I'd want the
report to display a "zero" in the calculation.
Please advise me on how to set this up, as the only approach
I've found resulted in all negative calculations being omitted
from the report.
Thanks for your help.
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Jan 7, 2005
I need some help with code. I can do this in Excel, but I am not sure how to do it in Access.
Here are the fields:
PoundsPerBox
PoundsPerOrder
BoxesToOrder
Here is the scenario: If a customer orders custom paint for their equipment, we need to total how many pounds of Powder Coat paint it takes to paint all the units (PoundsPerOrder). When we order this from the vendor we have to order it by the box which is measured in pounds. In this example, the vendor will sell us a box of white Poweder Coat paint in increments of 55 pounds. (55, 110, 165,...)
Verbally, the logic reads like this: If PoundsPerOrder is less than or equal to PoundsPerBox, then BoxesToOrder equals 1. This logic needs to be tested for each increment value (indefinately) of PoundsPerBox.
Am I making sense? How do I accomplish this in Access? And, as a side note, I need to capture and store this value in a table for future reference.
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Oct 21, 2013
I would like to create a report based on a query. The first part is simple enough. However within this query I have a 'Count field' (a total of the number of duplicated this record has appeared in the table). And would like to create a subreport (if possible) based on that value for example. if count > 1 then show subreport.
My question therefore; is the above possible? How would I go about linking this logic with the subreport
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Nov 13, 2007
Tried to export a report to Excel using Tools>Office Links>Analyze It With Microsoft Excel menu. The order of the fields appearing in Excel doesn't seem to match the order on the Access report layout. What is the logic on how the fields exported? Thanks.
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Jan 9, 2006
Ok, here it goes:
Got these tables:
CompanyTbl:
CompanyID (PK)
Name
Street
etc.
NAICS1(this is a standard industrial code, a 6 digit number telling about their product/service)
NAICS2
NAICS...6 (company can have 1-6 NAICS codes)
A layman has no clue what these NAICS code are, so each and one of them has a descriptive title, like NAICS 32330 = Canned Vegetables Manufacturing
For this puropse, I designed a second table:
ProductTbl
ProductTitle (PK)
NAICScode
Purpose:1. Be able to query by ProductTitle and get all companies with that profile.
2. Be able to retrieve Company ID with all its NAICS code/s and corresponding ProductTitle/s.
Now one company can have up to 6 NAICS codes and one NAICS code can appear under the descirption of multiple companies. So a many-to-many relationship. But how? A third table, probably....But how?
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Jun 17, 2014
In the highlighted line of code attached I am comparing two strings one from a snapshot recordset and one from an array.
The logic fails, you can see in the watches window both values equal "DESIGN and the elseif statement should execute but it does not.
The only reason I can see for this is that the values are equal to "DESIGN and not DESIGN. Where this single quotation mark comes from I do not know. It is not visible in the tables and it does not appear when the values are printed into excel.
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Jul 9, 2007
Hi Everyone:
I am new to this forum as I recently started working in MS Access. I’m hoping someone can please help me with this query I’m trying to do using MS Access 2007.
This task is somewhat similar to a typical points/miles rewards credit card program.
The problem is as follow:
For every $2,000 of accrued purchases in a credit card, an individual will get a gift card.
So, any remaining balances over $2,000 will rollover and be added to next set of transactions, until it reaches $2,000 again. For instance, if on the first week I spent $2,500, I would qualify for my first gift card. The excess $500 would rollover and be added to the next set of transactions until they reach $2,000 again. Therefore, this would qualify me for another gift card.
So far, I’ve created two tables, one that stores accrued purchases (Promo History) and another table based on an Append Query which takes all qualified transactions from the first table and appends those records to the second table (Promo History Qualified) in order to track those qualified transactions over $2,000.
However, I’m stuck on how I would accommodate the remaining balances to be carried over. Any suggestions would be greatly appreciated!!
Thank you in advance,
marel
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Jul 17, 2013
Record Primary Key: ID_Wells..The TxtFedStCo has Fed, St, Co, ... in one field - and a Dt_Apd_Sub (date submitted) .There can be zero or many dates submitted for each Fed or State.
Objective:
If
A Fed has (1 or many) date submitted
AND
A St has (1 or many) date submitted
Condition is TRUE
How do I get to the next step? The reason for doing this in SQL is to prototype in Access, then move this over to TSQL later.
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Oct 19, 2004
What is the best way to impliment a query in a form so that the user can view the query records, and have the option to print or save the selected record using command buttons?
I tried subforms but I could not get the command buttons to work in the subform after it went into the form, it wanted to print the entire form instead of the selected record from the subform.
So in a nutshell I have 3-4 queries that are built, and I want to have them show up on my form in a format that the user can scroll through the results and select a single record of the results and then print or save that individual record from the form, if such a thing is possible.
Thanks in advance
Todd
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Mar 24, 2013
I am trying to do the good 'ol sales report (query) to include customers with no sales.
I have a customers table, account number table, sales table & sales (line) detail table. (all linked in that order)
If I run a query to show customers (in the customer table) with account numbers, that works
An unmatched query to show customer without an account number works (but of course the unmatched account number field isn't shown).
How can I get the two two be shown together with the "unmatched" having a null or 0 for their account number?
I am guessing in principle, the resulting solution can be modified to show customers without sales alongside those with sales?
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Mar 4, 2015
In some cases I create pass-through queries and use these in an Append or Make-table query to bring data locally.
All is well and fine until source data changes and the pass-through query runs too long and times out.
If needed, I can extend the timeout value in the Parameters of the pass-through query no problem, but when I try to open the Append or Make-table query in Design view to do the same, the pass-through query is first triggered and then throws the timeout, and I cannot access the Design view of the Append or Make-table
Is there a way to open an Append or Make-table query in Design view without invoking the source query?
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Oct 28, 2005
Hello All,
I'm trying to run a UNION query that joins five queries through a MS WorkSpace into a DAO.recordset in VB. I'm pulling the data from a SQL Server Database through VB in Access. I'm attempting to open a recordset with a query passed to it as a string. The query is below. For some reason, I'm receiving a message: "MS Jet database engine cannot find the input table or query. Runtime Error 3078".
Here's what's puzzling. When I run a single query without any UNION statement, the code finds the table and runs fine without error, but anytime I join two or more queries with a UNION statement in the VB, it gives me the error.
I've executed the same UNION query in both Access Query Builder and SQL Server's Query Analyzer and they work fine in both environments. It's only when I call the query from a DAO.Recodset with VB that it causes this problem. The following is a sample of the UNION query joining two of the five queries. Does anyone have any idea what could be the problem? The following query executes in about 5 seconds so I don't think there's a "time-out" issue. I'm thinking that the UNION statement may be the culprit. Maybe there's another way to approach joining these separate queries? Any help would be most appreciated. Thanks.
SELECT SalespersonID, Sum([SlsPrice]-[RtnPrice]-[SlsDiscnt]+[RtnDiscnt]) AS fldPrice FROM MyTable WHERE (((Source)='d') AND ((DistrictID)='01') AND ((CategoryID) = 'HCPROD') AND ((BrandID)<>'CSS')) AND (((BrandID)<>'1356')) AND (((BrandID)<>'1400')) AND (((BrandID)<>'1551')) AND (((BrandID)<>'555')) AND (((BrandID)<>'66'))
AND (TransDate >= 07/01/2005) AND (TransDate <= 07/31/2005) GROUP BY SalespersonID
UNION
SELECT SalespersonID, Sum([SlsPrice]-[RtnPrice]-[SlsDiscnt]+[RtnDiscnt]) AS fldPrice FROM MyTable WHERE (((Source)='d') AND ((DistrictID)='01') AND ((ProductID) = '0029800')) AND (TransDate >= 07/01/2005) AND (TransDate <= 07/31/2005) GROUP BY SalespersonID
Set wrkJet = CreateWorkspace("", "pw", "", dbUseJet)
Set db = wrkJet.OpenDatabase("DW", _
dbDriverNoPrompt, True, _
"ODBC;DATABASE=DW;DSN=DW2")
'Set rs1 = db.OpenRecordset(strSQL)
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Nov 20, 2013
I am wondering if there is a quicker way to export a query to excel then have the data in that query removed from the original table. (effectively cutting the data from the table and exporting to excel)
I understand that this can be done by exporting the query to excel then running the same query as a delete query to remove the data but I just wondered if this is the most efficient way.
I have experience of VB in excel but currently only use the basic macro builder in Access though if Access VB is more efficient I can easily learn.
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Apr 2, 2013
I run a physical therapy office and patients come in for treatment either 3, 4 or 5 times per week. My database is used to track these frequencies (among other things).
I have 3 queries which count how many patients come in 5, 4 and 3 times/week.
In my main table I have fields called "how many 5's", "how many 4's" and "how many 3's".
I have tried to design an update query which will update those fileds in my main table to reflect the counts in the 3 queries mentioned above.
(I'm not using SQL view, I'm using the query design view)
In the "update to:" row, I use the Build function and locate the count I'm looking for.
Problem: when I run the query I get the error: Operation must use an updateable query.
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Aug 12, 2015
I have a query where these are the fields:
ProductRevType
RevLag
RevFlowThru
CloseMoYr
ProjRevDate
CurrentMRC
ProjRevMRC
The ProjRevMRC field is an expression that reads:ProjRevMRC: IIf([ProjRevDate]>=DateSerial(Year(Date()),Month(Date()),1),[CurrentMRC]*[qry303a_ SFADetailMRC_ONLY]![Rev Flow Through],0)
When I run the query, it works perfectly, but when I created a crosstab query to show totals by month, I wanted the totals to be zero for the months less than the current month. Is there a way for the crosstab query to execute the expression and put zeroes for those months?
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Jul 15, 2014
I have a field that is giving me the number of business days between a period of time and then I want to subtract that number - the person's PTO time to see the actual days they were available...when I simply type the number in (see below) it works great but I want to set up a prompt that will ask me how many PTO Days to calculate as it will be different for each person I am quering...is this possible?
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