Queries :: Compare Data Stored Within Same Table
Jun 13, 2013
I am running into an issue when trying to compare data stored within the same table.
tblParcels - holds data relating to an individual parcel of land; unique identifier is ParcelID. No repeating data.
tblValues - holds data relating to the value(s) of each parcel; new values entered annually; unique identifier is TaxID; has field to link to tblParcels. One parcel can have multiple entries for each year tracked.
I have two unbound text boxes on frmMainForm where users can enter Tax Years to compare (txtYear1 and txtYear2). Theory being that users will be able to select any two tax years and compare the parcel values.The report (rptMaster) is built using three queries and is used to show the change in value between txtYear1 and txtYear2:
qryYear1 - pulls all values from tblValues where the TaxYear equals the year typed in txtYear1.
qryYear2 - pulls all values from tblValues where the TaxYear equals the year typed in txtYear2.
qryCompare - joins the results from qryYear1 and qryYear2, along with other common fields, and populates rptMaster.
My problem lies when a parcel does not have any values for one or both of the years entered into the text boxes. I completely understand why, qryCompare can't show any records if there are no results coming from either qryYear1 or qryYear2. What I am not getting is how to work around this issue.I would like for the report to show "$0.00" for the value if there is not a value for that Parcel in tblValues for the year entered.
tblValues example data:
TaxID ParcelID TaxYear Value
1 5 2011 100,000
2 5 2012 200,000
3 6 2012 75,000
In the example above, when comparing 2012 values to 2011 values, my report shows the values for ParcelID 5 but not for ParcelID 6 as it does not have a 2011 value (and won't since information about that parcel didn't exist in 2011).
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Dec 4, 2013
I'm trying to create a query that will compare the data in 3 fields in a record, choose the largest (I also have a criteria to order by if more than 1 field has the same entry and it's the largest of the 3), and then group by that.The fields I will need are as follows:
PRODUCT table:
ProductName
Chemical
ChemicalAbstract
PhysicalState
NFPAHealth
NFPAFlammability
NFPAReactivity
qryQuantityOnHand query (which doesn't link directly to the PRODUCT table, it links through associations with other tables):QOH...I will eventually need information from another table for the final reports, but I don't think it has to be included in this query.
The fields NFPAHealth, NFPAFlammability, and NFPAReactivity each may be 0, 1, 2, 3, or 4...I need to ignore blanks; if 1 of the above fields is blank, they will all be blank.For any record, I need to compare the number in those 3 fields to each other, and choose the largest number and group by that rating.
In other words, if the largest of the 3 numbers is a 3 in the NFPAFlammability field, all those products need to be grouped together.If the same number appears in at least 2 of the fields, the order that determines the grouping is: Flammability, then Health, then Reactivity..Ultimately the report will be grouped as follows:
Flammability
Rating 4
Product 1
Product 2
Product 3
Rating 3
Product 1
Product 2
Product 3
Rating 2
Product 1
Product 2
Product 3
Health
Rating 4
Product 1
Product 2
Product 3
[code]....
and each of the groups will be sub-totalled.I'm stumped at trying to create the query in the first place.The added aggravation here is that we are dealing with 23 stores, each with their own mix of products. I have another table that contains the information about which products are in which store.
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Apr 22, 2006
Hello all :)
I've read some really funny stuff while searching for an answer to this. You're a bunch of really witty types :)
So I'm sure someone can help me - why would this entered data not make it into the table?
I have a form that has a subform. After the subform I have a button to continue. If this is clicked I change the visible property for another field to true. This field appears to work fine, but the data doesn't make it to the underlying table, in fact it sometimes seems to be included in the next record.
Any ideas?
Thanks
A.
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Mar 1, 2006
Hello.
I am new to Access. (2003)
I have a make couple of Forms and couple of tables.
My problem is how to I connect the form to the table, so it will store entered data from the form to the table.
There are about 2-4 places where the user can enter data into the Form and it should be stored to a table.
I made 5 forms and 5 tables, where the user fills out the first form and clicks next and next form opens and so on.
If possibly I would like to skip all the coding that can be used.
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Mar 13, 2013
I have a table with a list of different government programs that products can take advantage of. Each of these programs has criteria such as "must use less than 1000W" or "lasts for 100 hours". Rather than have a column for each possible condition, I've created 3 fields that will accept any type of condition; Var1Condition (example: watts) , Var1Requirement (example: >=), and Var1Value (example: 50). I figured this would be the more efficient database design than to add 15-20 columns.
I then built a form that would where I could enter product attributes and would hopefully query my database and only return the programs for which the product would qualify. So I would have a field named "Watts" in which I would put the wattage of the product and then I would see which programs it would fall in.
In theory, it should be simple. I figured I could just find a way to combine my 3 criteria fields into one string "Forms!Search!watts >= 50" and then use that as a query filter, but I can't find a way to do it.
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Dec 17, 2004
I'm willing to be this is simple, but I haven't been able to figure it out.
I have created a database with one table, tblUserData. I have one form called frmLogin.
tblUserData has two fields, Username, and Password.
frmLogin has two textboxes for user input, User and Pass, and has one control, cmdLogin.
What I am trying to do is - When a user types their username and password, and clicks on the control
button, the value of User.Value is compared to the Username field of the UserData table.
If a matching record is found, then Pass.value is compared to the Password field from the matching record.
If they match then the program proceeds.
Can anyone point me in the right direction please?
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Jan 6, 2014
SQL stored procedure which is simple INSERT statement on a single table 'tblSOF'
Code:
-- ================================================
-- Template generated from Template Explorer using:
-- Create Procedure (New Menu).SQL
--
-- Use the Specify Values for Template Parameters
-- command (Ctrl-Shift-M) to fill in the parameter values below.
[Code] ....
I am stumped with the following error.
Error: Msg 102, Level 15, State 1, Procedure InsertINTO_tblSOF_sp, Line 80 Incorrect syntax near ')'.
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Jun 25, 2015
I am programming an Acess Database, the primary data come from an excel sheet. Since Access one to many relationship only works for primary key and another field in another table as foreign key, I can't have normalized database.
I will explain what I mean with a hypothetical situation.
So, let's say I have two tables: WindowT1, CustomerT2.
WindowT1 has fields: WinID (the pk), WindowName.
CustomerT2 fields include CustID (pk), CustomerName, WindowName, WinID.
So, in table "CustomerT2', WinID is the foreign key and I need that field filled in to make one-to-many relationship between these two tables to work. CustomerName and WindowName will be imported and prefilled already from an excel file with append query.
My question is can I make a update query (after the initial append query that brings in the data into Access) such that the criteria is matching WindowName (from CustomerT2) and the update would be the corresponding WinID (the pk number from WindowT1) that would be filled in the field WinID (in CustomerT2)? I know for this to work tables must have relationship and I did that.
Is there a better way to accomplish this task? i.e. through a form (remember info will be prefilled, so can't use combo box to fill in another form field) or maybe can I do this using the first append query (that brings in data)?
I am not good at Macro or VBA. The only thing I have done in code builder is After Update event in forms while using combo boxes. So, if there is no easier solution, I will try to deal with codes.
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Dec 23, 2013
Why is this update query not working, I'm trying to update a date field stored in a table.
The new date is passed from a txtbox on a form to the update query!!!
SQL code
UPDATE TblDietPlantemp SET TblDietPlantemp.MealDate = [Forms]![FrmSwitchBoard]![txtCusDate];
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Dec 2, 2014
I have a form where when the user clicks on the browse button then excel workbook filepath gets stored in the textbox as below:
Code:
Private Sub CommandButton1_Click()
ChooseFile
End Sub
Sub ChooseFile()
Dim fd As FileDialog
Set fd = Application.FileDialog(msoFileDialogFilePicker)
[Code] .....
Please see attached the excel workbook. Everytime the user will select Excel workbook using Browse button. Now in that file , the first sheetname will always be "Summary". I want to perform the following steps:
1. So now I want VBA code to copy the data from columns "Withdrawn","Obsolete","Updated","LitRef" from Summary sheet to the Access table named tblSummary.
2. When the data gets copied in Access table then write So VBA code that will check if the data in field LitRef in table "tblSummary" is present in field "Reference" of Access table "tblliterature" . if its present then check in the tblSummary , which corresponding fields out of "Withdrawn","Obsolete" and "Updated" stores "Y" .
3. If "Withdrawn" field value is "Y" then change the status of corresponding record of tblliteraure to "Withdrawn"
4. If "Obsolete" field value is "Y" then change the status of corresponding record of tblliteraure to "Obsolete"
5. If "Updated" field value is "Y" then change the status of corresponding record of tblliteraure to "Updated" .
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Nov 18, 2014
I have a database with numerous tables. I have set up relationships between all tables (they are all pretty one-to-many relationships). I then created forms in which to enter and view data. Data entry is fine; however, when I go into my tables, I realize that it is not storing the ID# for related tables in the main table.
For example - I have a table called "ContractTypes" with a field for ID#. That table is linked to the main table called "Contracts. In the form, I have the ContractType as a lookup field, I select the one I want for this entry, but it is not storing that ContractTypeID into the Contracts table. Also, when I go back into the form to enter a new record, the data on the subforms is from the previous record and not the record I'm currently working on. In other words, it does not appear to be linking the ID#s from the different tables.
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Oct 28, 2007
I have a task that will require me to subtract the current time from the previous time as long as the records fall within the same Extract Count. For example:
I have 8 transactions associated with ExtractCount #2 and 8 start/end & processing times. I need to subtract each row's time from the previous row's time. I have a conceptual idea of how to do it but need real help to figure out how to do this using a query.
Thanks,
Phoenix81
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Apr 13, 2014
I am using a predefined query to define the sql statement that will serve as recordsource to a form. Syntax is fine. The predefined query does not have the primary key of the table. The selection in the recordsource is done using this key. So I add this field to the design of the query. I save the query. It says the query is saved. But it is never saved. Run the query again it is not changed.
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Oct 3, 2014
In the case of a system that keeps track of checking in and out (e.g. library books), where is the archive data stored? If a person makes 30 trips to the library, obviously one record will be the current visit - but where do you keep the 29 other visits?
Do you create a separate table for old check-outs: Current_Check_Out and Archive_Check_Out?
Or do you just leave the data in place and as-is: All_Check_Outs?
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Aug 15, 2006
Hi guys,
I have 23k records
I have run the wizard to find all the duplicates according to one field.
So i have the results, except that some of the records contain nothing within the searchable field - so it returns all the records with nothing in the searchable field as duplicates.
How would i modify the query to perform the search but exclude the records with no data.
The SQL query below is the default wizard output for find duplicates, how would i change this??
SELECT Master.EMAIL, Master.MemID, Master.MEMBERNO, Master.FIRSTNAME, Master.LASTNAME, Master.POSITION, Master.ORGAN, Master.ADDRESS1, Master.ADDRESS2, Master.ADDRESS3, Master.ADDRESS4, Master.COUNTY, Master.COUNTRY, Master.POSTCODE, Master.SALUTATION, Master.MOBILE, Master.TELEPHONE, Master.WORKPHONE, Master.FAX, Master.RATE, Master.CLASS, Master.ADDREF, Master.DATEJOIN, Master.WEB, Master.Field26
FROM Master
WHERE (((Master.EMAIL) In (SELECT [EMAIL] FROM [Master] As Tmp GROUP BY [EMAIL] HAVING Count(*)>1 )))
ORDER BY Master.EMAIL;
Another thing is, once i have the result... which query would i use to actually delete the duplicate data??
Cheers, and advance thanks!! :cool:
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Oct 7, 2013
I have several projects with different tasks for each. I have 3 fields [fkProjectsID], [TaskOrder] and [Duration] in a table for project tracking with that structure:
[fkProjectsID] [TaskOrder] [Duration]
1 /1 /5
1 /2 /8
1 /3 /15
1 /4 /6
2 /1 /8
2 /2 /30
2 /3 /25
I want to calculate cumulative values stored in [Duration] field (represent a number of days). I'm using the field [TaskOrder] to order different tasks within each project. With some testing, I was able to calculate cumulative [Duration] with 1 project using the DSum fucntion as following:
CumulDuration: DSum("[Duration]", "[tblProjectTracking]", "[TaskOrder]<=" & [TaskOrder])
I was having the sequence: 5, 13, 28, 34 for respectively Task 1,2,3,4. However, when I add a second project (and then a third...), I need to be able to filter based on [fkProjectsID] as well (i.e. a specific DSum by ProjectsID). I add this criteria but I get the sum of [Duration] on each row instead of the cumulative:
CumulDuration: DSum("[Duration]","[tblProjectTracking]","[TaskOrder]<=" & [TaskOrder] And "[fkProjectsID]=" & [fkProjectsID])
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Jun 13, 2014
Need to compare 2 fields in a query, and return the larger of the 2 values in a 3rd field.
As in:
Field A=10 Field B=6 I need Field C to = 10.
Field A=5 Field B=6 I need Field C to = 6.
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May 1, 2012
Here is what I am trying to do: I have form, and a table which is created from this form. The data is entered a second time using the form to make sure there are no discrepancies.
Any easiest way to implement this? (create a new table (which is duplicate), and then compare them?
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Dec 30, 2014
I have two different database files. One is 2010 ".accdb" format where I have created a form and the inputs to the form is getting saved as records to an access.mdb file in a shared path.Now if the users want to edit the existing record I should allow them to search their previously submitted record with a unique ID number.
I know it is possible when we have both the form and table in the same db. But I want to know whether it is possible to search with a unique ID and pull the data from different db in a shared path using a command button?
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Jul 19, 2014
one more thread of mine today
I have this table:
-> tblTest
Code:
test_id | test_Name | test_Date | test_value
------------------------------------
1 | Company A | 01.01.2010 | 0,90
2 | Company A | 02.01.2010 | 0,95
3 | Company A | 03.01.2010 | 1,10
4 | Company A | 05.01.2010 | 1,05
5 | Company B | 01.01.2010 | 0,9
6 | Company B | 02.01.2010 | 1,20
7 | Company B | 03.01.2010 | 1,15
8 | Company B | 05.01.2010 | 0,95
9 | Company B | 07.01.2010 | 0,80
The important level is 1,00
Now I will, for each company, check:
- Is the value of ID-1 >1 AND the value of the ID-2 <1, THAN give me a 1
- Is the value of ID-1 <1 AND the value of the ID-2 >1, THAN give me a -1
In this example the result should look like this:
Code:
test_id | test_Name | test_Date | test_value | test_Code_result
-------------------------------------------------------------
1 | Company A | 01.01.2010 | 0,90 |
2 | Company A | 02.01.2010 | 0,95 |
3 | Company A | 03.01.2010 | 1,10 |
4 | Company A | 05.01.2010 | 1,05 | 1
5 | Company B | 01.01.2010 | 0,90 |
6 | Company B | 02.01.2010 | 1,20 |
7 | Company B | 03.01.2010 | 1,15 | 1
8 | Company B | 05.01.2010 | 0,95 |
9 | Company B | 07.01.2010 | 0,80 | -1
Probably I have to carry out this in vba.but i dont know how I can calculate across the datapoints (rows).
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Jun 11, 2013
I have a table that contains the following fields: ID (autonumber), Item, billing date(mmm/yyyy), count, and approved.
My first query returns records where the approved field is null. My second query returns returns all records for 2 months ago where the approved field is not null.
This is my problem, I need to pull records that have NOT been approved for the prior month BUT if they were approved 2 months ago AND the count is the same, it does not need to be returned in the query. Also, if it was approved 2 months ago but the count is different than what it is for 1 month ago, it needs to show in the query.
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Jul 18, 2013
I have a table called tblAuthorizations. It appears as follows
AuthInstanceID....ConsumerID....AuthNumberID....Au thStart....AuthEnd....PSRUnits....BSTUnits
1374006036.........356679..........20255102....... ...4/22/13......7/21/13.....0..............416
-432536491.........356679...........20255102....... ...1/21/13.......4/21/13....104..........416
-124970517.........356679...........20147863....... ...10/23/12.....1/20/13....208..........520
504564357...........469432..........20254788...... ....4/22/13......7/21/13....0..............520
282523535...........469432..........20254788...... ....1/21/13.......4/21/13....0.............520
I work in mental health, and when we put in a request for a consumer to receive PSR & BST services, we put the above information into our database. Each record identifies which consumer the authorization is for, a start date and end date for them to receive services, and the amount of two types of services (PSR and BST). When one period ends, we request another period, such as in the first three records above, and then the final 2 for another consumer.
What I need to be able to tell is how their service authorizations change. For instance, if I were to compare the first and second records, it would tell me that PSRunits decreased 4/22/13-7/21/13 from 1/21/13-4/21/13 levels.
I have a query that displays the records for each consumer for the current period, but I can't figure out how to identify the previous period's number of PSRUnits or BSTUnits.I've tried adding the following fields, but this isn't working.
PrevEnd: (Select Max(AuthEnd) from tblAuthorizations Where AuthEnd < Auths.[AuthStart])
PrevBST: DLookUp("[BSTUnits]","tblAuthorizations","AuthEnd=" & [PrevEnd] And "ConsumerID=" & [ConsumerID])
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Feb 28, 2014
I have created a mock employee database to work out kinks before I create the real one. One table has employee info (employeeID, name, address, email, phone numbers, etc.). The other table has "employee actions" with fields: employeeID, actiontype, salary, jobtype, jobtitle, jobhours, bonus, actiondate. Actiontypes are "hire", "salary change", "bonus", "leave". It is a little more complicated but that is irrelevant to my query question...
I created a query to show employee salary changes, amount and action date. I want to create a calculated field that shows the dollar change and percentage change from last salary to new salary. So the query involves multiple records or rows, which seems to be a black hole in terms of information on how to do this. If it were Excel, I would just do a quick nested function calculation and be done with it but with Access, where each record is independent of the others, how to calculate it. I know there must be a way to do this because otherwise, what good would an employee database be?
So the questions are: (1) can you do calculations (other than totals or counts) using multiple records/rows? and (2) if so, how do I do it? It seems I would have to do a a specific sort and it would not be easily updatable.
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Mar 8, 2015
I am using the following and is working perfect
Private Sub NEXPPRC_AfterUpdate()
Me.[Purchase Description] = Me.NEXPPRC.Column(0)
Me.[Purchase Price] = Me.NEXPPRC.Column(1)
Me.[Purchase Units] = Me.NEXPPRC.Column(2)
[Code] .....
The above is for combo box, Now I want to use similar code to store calculated text in a field to the table "Purchases" but for the text box
Name of the text box:
Atcom
calculation Value:
AASTamt: ([aasc]*[Purchase Qty])
I tried but this is not working on the text box Atcom
Private Sub Atcom_AfterUpdate()
Me.[Atcom] = Me.([aasc]*[Purchase Qty]).Column(0)
Me.Requery
Me.Refresh
End Sub
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Sep 9, 2005
I have a problem converting text to a real date value so I can do some calculations. I have a query that brings in data from an external data source. It appears the data is stored in the external table in text format and looks like this:
20050902 15:40:41
I have tried CDate to convert the text to a date/time format, but no luck. Any ideas?
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Mar 20, 2005
I would like to compare 2 tables by looking only at the names of the fields, data types and their properties (e.g. required yes/no). I am searching for a method to export this information to another table and then make comparison. Maybe sth. similar to “documenter” or another tool. Some ideas would very much appreciated. Thanks Bartek.
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