Creating Blank Records From New Part Of A Composite Key?
May 10, 2013
I'm creating a database for a school. it contains the following tables: 'Students' of which the primary key is StudentID, 'Subjects' of which SubjectID is the key and 'Exams' - ExamID.
Then, I have a table called 'Results' but with no primary key of its own - just 3 foreign keys from the other tables and another field which can be left blank let's call it 'Grade'. So the Results table would have the following fields:
StudentID*, SubjectID*, ExamID*, Grade
Now, I make a form which creates a new lets say ExamID and I would like to create records with all the combinations of all of the subjects and students, ready for the 'Grade' to be typed in.This is assuming the Exam isn't based on the Subject directly.
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May 10, 2013
I have a table of the following structure:
Key 1 Key 2 Key 3 Optional
data1 data2 data3 data4
The 'key' fields are a composite key of primary key fields from other separate tables. I have a form that generates a new 'Key 1' record and I would like to make a query that creates all possible 'Key 2' and 'Key 3' results (new combinations) while key 1 stays the same. How would I go about doing this? I know I can be done.
I cannot really give any real data as I haven't received it yet.
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Oct 17, 2014
My table key looks like this. Its a table that keeps a master record of conferences that occur during a calendar year
ConfYear (Date/Time) primary key
ConfNo (Byte) primary key
As you see its a composite key. Now each time a new record is created i want the ConfNo to autoincrement within its ConfYear. I used a byte as its not usually more than 4. Autonumber does not work as part of a composite key i found out.
2014 1
2014 2
2014 3 etc
And revert to 1 when ConfYear input changes to 2015
Is there a simple way to do this with say, a macro, or is the only way with VBA and DAO?
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Feb 26, 2015
I am creating a database that tracks the selling of products amongst other things.
The user will enter in an order and may delay invoicing until the customer approves the quote - at which time the order is turned into an invoice.
In the transactions table the OrderID, ProductID and CustomerID constitute a composite key.
I want to be able to view the order and change it by either deleting or adding ordered items (obviously prior to invoicing) but because the ProductID is part of the composite key I cannot delete a line item.
Perhaps the solution is to remove ProductID from the index or is there a better way?
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Aug 4, 2006
I will try to explain this in as detail as possible. I have One table having numerous columns.
Columns
RowNumber <primary key>
A
E
B
C
D
Now what I am trying to do is retrieve all records in this table where the combination of A and E is unique. e.g. if table looks like
RowAEBCD
111blahblahblah
221blahblahblah
322blahblahblah
421blahblahblah
532blahblahblah
633blahblahblah
When I Run a query I should get only the following records
RowAEBCD
111blahblahblah
322blahblahblah
532blahblahblah
633blahblahblah
I want all such records where combination of A and E is unique.
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Jan 27, 2014
Each each record in table1 has a unique four character (alpha-numeric) code to identify it. The first two numbers of this code represent the group it is in. (Ie. 15AB and 1502 are both grouped together) The second table stores values that apply to the entire group. I need to create a relationship between these two tables based on the first two characters in the ID field.
Things I've tried:
* Making a calculated field with left$() formula - Access doesn't allow relationships on calculated fields
* Create a new field for just the first two characters and create a data macro for after update and after insert to update that field with the expression - cannot edit the field the user is on
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Jul 18, 2013
I have a couple different reference files that get updated each week. Sometimes there are missing data elements, so I'd like to structure a select query to show me those records that have blank elements but I'd like the similar records to be pulled in as well, so I can make a determination as to how to populate the blank records..
See attached example: I have a client ID reference table that gets populated with forecast owner names (individuals responsible for the customer) from a couple of different sources. Sometimes there are names attached and sometimes the field is blank.
How can I structure a query to show me just those Client ID's that have multiple entries with blank AND non-blank forecast owners? I'd also like to exclude single/multiple records where there are only blank records...
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Mar 13, 2007
OK, I have been searching around on the fourm for over an hour now...I give up. If this is some where else, I am sorry.
I have a database of maintenance data. There are several columns that are usually filled in, some records have some columns blank. They are formated text because they hold letters and numbers (see pic).
I am using a form to query the table...no problem. The form has text boxes the user filter down the data
The problem comes are with the results of the query. Any record that has a blank column is not retuned. I am using "Like" so that the user can enter in partial codes. I know "like" won't return "null" records.... Help!
Things I have tried:
1)IIF(form field is blank, return table field, else use like command to filter) - returns nothing!
2)Like "*" & [Forms]![Fleetwide_data_Request]![MAL_CD] & "*" returns all records without blanks (i.e. missing data)
what else can I do?
Thanks
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Jan 6, 2006
I need to create a bunch of new records that will contain some existing data and some blank fields.... what I want it to look like:
ACCOUNT | NUMBER | PERIOD | AMOUNT
4G334223 123-224-2212 1/1/2006
4G334223 123-233-2334 1/1/2006
What I want is the query to pull the account and number from the db, then add the date in automatically (not the current date, just a specified criteria to signify jan 06, feb 06,etc) and leave the amount field blank (which I will then add in the corresponding values manually).
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Jul 28, 2014
I am trying to do has to be done in a table and without the use of forms (becasue its what works for us) in Access 2007. I have a table where my staff records a number of different data fields for accounts. I currently have a 3 table relationship established. One of these table is our "Notes" table. My staff enters continuous notes for different accounts as new information come in.
What I have done is set my "date" field's default value to "now()" which accomplishes the time-stamp I need, but at the same time as soon as they type anything in another field in that row Access creates another row which is unwanted. follow up how can I go about also having a field that auto fills w/ the user's name/ID?
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Jun 13, 2014
I am creating a table, using an INTO statement.
I require a blank numeric field, which users will be updating via a form.
How do I make the field numeric, as my current script makes it a text field
'' as Ticket_No
And you can't cast/convert text to numeric ....
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Jul 21, 2014
I'm working on a form with almost a hundred various fields (it's what my employer needs). He wants to be able to create new records with much of the same information as the old ones by clicking on a button that will copy the information to a new record, then clear certain specific fields (or some process that will safely create the same result). I don't need specifics on how to write the same line of code for each and every field I wish to clear.
Say I have a form with 5 fields: part_number, part_owner, procedure, file_name, and date.
How could I copy the record to keep the fields part_owner and procedure the same, but clear part_number, file_name, and date?
All of the fields are from the same table (no, it's not normalized...).
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Jun 13, 2014
I am creating a table, using an INTO statement.
I require a blank numeric field, which users will be updating via a form.
How do I make the field numeric, as my current script makes it a text field
'' as Ticket_No
And you can't cast/convert text to numeric ...
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Dec 16, 2004
I have what I think is a difficult problem to overcome...
I am designing a form to create an invoice. The user will select a workstream and a date range in form frmInvByHrs. Within this I want two sub-forms, one is frmInvByHrsTsht and the other is frmInvByHrsBill. I want the first one to display all the staff and their hours done, and the second one to be in data entry mode where you can enter the hours you want to bill. Each sub-form is based on a separate query.
Is it possible to do this? ie. to have one sub-form in data entry mode, and the other not? It seems to me that the data entry mode is controlled by the MAIN form regardless of the sub-form settings!
If this is not possible, do you know how I can acheive this?
Thanks
S
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Oct 12, 2006
I'm working on a table which has a country field, but this field may contain a text string consisting of more than one country, eg "France, Belgium, Spain"
I want to run a query against the table to select records for any one country, but not sure how to do this.
Any suggestions please?
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Mar 26, 2014
We have a field that we track paperwork with that is 9 characters. The first 4 characters are a 'julian date', the 5th character is a dash and the last 4 characters are sequential.
Example:
For today, we would use 4085-0001, 4085-0002, 4085-0003, etc.
For yesterday: 4084-0001, 4084-0002, etc.
I have a query set up that will pull records with a julian date of today-1 and today-7 that works. So a result I may get:
4084-0001
4084-0002
4081-0000
4078-0000
4078-0001
4078-0002
I tried formatting the source field with Left -4, but it only shows the first four characters in the result:
4084
4084
4081
4078
4078
4078
How can I count the number of records each day based on only the first four characters? Example:
4084 = 2
4081 = 1
4078 = 3
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Nov 3, 2006
Hi everyone,
I have refined my query from previous threads to involved a module function. This calculates more acurately no of working days between dates and takes into account a holidays table. (All credit to Arvin Meyer on the module:) )
However because the Leave Year starts at the 1 July and finishes 30 Jun I need to compose the date for any current year Year(Now())
Enclosed scrdmp shows my query design. I can easily get it to work as you see it, but obviously as each year rolls over, the year needs to change.
Have looked at many posts but can't find what I'm looking for. This one will get me over the hurdle.
Many thanks,
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Mar 19, 2007
I want to find duplicate records based on FirstName and LastName and delete the duplicate. Also, I want to delete any records which have a blank FirstName and LastName.
How can I do this?
Thanks,
Dave
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Jul 10, 2015
I have recently encountered some issues with my database. When I load data from an .xlsm file to my front end table, I get additional records with no data only the ID. The data I loaded comes in fine, however I get many of these records with no data only the ID. This only happens in one of my tables.
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Dec 6, 2007
When I import an excel spreadsheet into my Access database it always creates a couple of new blank records. I import this spreadsheet frequently so I would like to set up a macro that will automatically delete any blank records it creates. Can someone tell me specifically how to do this?
Thanks.:)
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Apr 26, 2006
Hi,
I'm new to Access and I've run into a little problem. I've created a table with a primary key (autonumber) which will contain 1520 records. At present I only have data for the last 8 records. Ideally I would like to create 1512 blank records, with only the autonumber entered e.g. 0001, 0002, 0003 etc.
Unfortunately I cant add the data that I have got to 0001 - 0008 as it relates specifically to the primary ID.
Thanks.
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Dec 30, 2005
Hello,
I have an unbound combo box in the header of a continuous form. The box is set to value list, and when you select a value, the recordsource of the form is changed. This works fine.
However, if I there are no records in the underlying form, the combo box is blank. If I check the value in the immediate window or the after update, I can see that it is set properly and contains a value, it just doesn't display it. I am using Access 2000. I have tested on Access 2003 and cannot replicate the problem.
I have found one post here (http://www.access-programmers.co.uk/forums/showthread.php?t=84423&highlight=combo+box+blank) on the topic.
I found this (http://support.microsoft.com/default.aspx?scid=kb;en-us;287478) article on Microsoft which has my symptoms, but I am not opening a recordset.
Anyone know how to fix this??
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Nov 27, 2006
I have a form that is opened by the following code:
Private Sub Status_AfterUpdate()
If Status.Value = "WIP - Snagged" Or Status.Value = "WIP - Suspended" Then
DoCmd.OpenForm "NotesJobChanged", , , acFormAdd
Forms!NotesJobChanged!txtJobNo.Value = Me!txtJobNo.Value
Forms!NotesJobChanged!Date.SetFocus
End If
This 'NotesJobChanged' form has three text boxes on it - JobNo, Date & Note. The JobNo is autofilled from the code above. If nothing is entered into the other fields and the form is closed this record is entered into the database with only the JobNo filled in.
What I want is a way to force the user to enter data into these fields. I don't want to set the 'Required' property of the field to yes as it generates an awful system error message. If the user attempts to close the form without filling it out can they be reminded that they have to, but with an option then to close the form if they really don't want to enter any data? If they do chose to close without filling it out can it be prevented from being added to the database.
Hope this makes sense :)
Many thanks in advance
Michael
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Jun 8, 2005
I'm working on a db logging replies to a questionnaire. Judging by the responses I am receiving it appears that some sections are not completed at all. I need to be able to include these blank responses when it comes to analysis.
My design splits the questionnaire into sections, each section has a data entry form with its own underlying table. Each table has a primary key (autonumber field) which relates to each organisation that has replied.
If an organisation has failed to complete a section, I still need to create a new record in that section(table), triggering the autonumber field, hence referring back to the organisation.
I know I haven't explained this very well, but if anyone can make sense of what I'm saying and can give me any suggestions on how to make this happen, I would be most grateful.
In anticipation of your replies
Ride
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Nov 19, 2014
how to have our query show ONLY the records with NO DATA in the company field?
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May 6, 2015
I have written an invoicing module for my program and some users in the office are dirtying a record and then leaving the module without completing the invoice. (This leaves behind an almost blank record with a period in one field or a space, etc). When someone else starts an invoice from another workstation it skips this almost blank invoice and starts a new one, skipping the almost blank one. Is there a way to check for these orphans automatically before using another invoice number. This happens once or twice a day so it is of concern to my bookkeeper who checks the sequence of invoices to make sure none are missing before posting them to the accounting program.
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