Matching "Similar" Records
Nov 12, 2007
Hi - I am working on a database where i need to update a table with a "UniquePersonID"
I have a master table which stores:
UniquePersonID
Surname
Forename
DOB
SEX
Postcode
This table is approx 600k records, now the problem i have is that i have further tables which contain Surname, Forename, DOB, Sex and Postcode and need to resolve these with the "UniquePersonID", unfortunatley in some cases names, DOB's may have been spelt slightly differently, (i.e. "Abbas" should have been "Abbass" or the DOB has been entered with a typo)
I have managed to do an exact match and update the majority of records but i am still left with just over 16,000 records to match manually... I have created a form which allows me to tick which boxes to search against to resolve record by record, but estimates suggest that this will take around 12 solid days work :(
Is there a way of matching similar records and coming up with a probability score that anyone out there is aware of???
Many thanks
Ian
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Oct 28, 2005
This is a tough one. I am developing golf management software. There is a table of caddies. And there is a table of members. The Caddies carry two bags each one for each member. They are assigned their jobs through an assignment form. Therefore, a single caddie will carry for Member1 and Member 2.
Now I need to produce a report of how many times each member plays. So how can I query the assignment table where Member 1 and Member 2 fields exist so that I can have a single field of allMembers so that I can count their rounds in a report.
Thanks.....Jeff
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Jul 31, 2006
I have a table of ~165k records and need to delete records that are similar (2 or more records have the same lastname, firstname, dob). These records are not duplicates as other field values in these records are different. I've tried several sql scripts and Access methodologies but can't get valid results.
Thanks,
Phil....
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Nov 13, 2006
I have a query that accesses data from 6 tables. The query displays 6 records where as there are 7 records that have to be displayed. The one record it doesnt display is similar to other records. I dont know why its not being displayed. Kindly help.
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Jan 31, 2008
This may be a simplistic question but I'm having some diffuculty figuring it out. I have multiple rows of data where I need to use the "Unique Values" property in my query to limit only what I need. However, I have a "time" field and their are similar times on different records. So say I have a 100 records but 8 of them have the same "time" value, how can I use someting like the "Unique Values" property to get my rows down from several hundred to 100, but not lose the 8 similar rows and end up with 92 rows, when I have to turn around and sum these times and need all the times to be there?
Maybe I'm approaching it the wrong way and should be doing a SUM of "times" to begin with for that field, but I'm not being able to get that to work either. Any suggestions? /Thanks
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Jun 20, 2013
I have a query that shows member check-ins to a fitness facility. Customer scans their membership card and it logs their customer id, scan date/time (date and time are one field), name, etc. Sometimes the customer will scan their card multiple times if they've left and come back, but I only want to count their first scan. I have a second query that runs off of this one and counts visits by hour for a date range.
So my question is, how do I filter out subsequent scans on each day in a query and how do a I do that when running the query for multiple days? So in the multi-day query I want to count each day they came, but only the first scan of each day? How to do this in the query design grid...
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Mar 3, 2015
I am creating a simple inventory db. I have a form that we enter into the table inventory. Right now we enter in everything once as inventory, then again to out to coating or ship to customer. I’m looking for the code to create a button enter the record twice but make two fields change.
So in short terms I want the form to enter a record with all the data as displayed. Then create another record with all the same data but the quantity would need to change to a negative and the Status would change to “Coating”.
I know this code won't work but this is what I want to do.
Private Sub Command78_Click()
.AddNew
!Employee = Me!Combo68
!Material = Me!Combo48
!Length = Me!Combo29
!Caliber = Me!Combo31
[code].....
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Apr 22, 2006
Hi guys,
need your help again with the following problem i'm having. I'll give an example to make the problem clear.
I have a table, eg table 1 with the following records:
Tag________Desc________Msgno____DateTime
016GB001___Alarm OFF___1403______21/4/06 11:02:02
016GB001___Alarm OFF___1605______21/4/06 11:02:02
034GB005___Alarm ON____1403______21/4/06 11:02:04
016GB001___Alarm ON____1403______21/4/06 11:02:07
016GB001___Alarm ON____1605______21/4/06 11:02:07
048GB001___Alarm OFF___1403______21/4/06 11:05:31
048GB001___Alarm OFF___1605______21/4/06 11:05:32
048GB001___Alarm ON____1403______21/4/06 11:06:51
048GB001___Alarm ON____1605______21/4/06 11:06:52
I need a query that looks at records with similar Tag fields that occur with a 1 second difference between them and deletes those with "1403" in the Msgno field. I'm a newbie and i've got no idea where to start. The query should return the following records:
I have a table, eg table 1 with the following records:
Tag________Desc________Msgno____DateTime
016GB001___Alarm OFF___1605______21/4/06 11:02:02
034GB005___Alarm ON____1403______21/4/06 11:02:04
016GB001___Alarm ON____1605______21/4/06 11:02:07
048GB001___Alarm OFF___1605______21/4/06 11:05:32
048GB001___Alarm ON____1605______21/4/06 11:06:52
I hope the problem is clear. I know this is going to be one heck of a challenge, and i'm not sure whether this can actually be done in access!! Anyhelp from anybody would be enormously appreciated. Hope to see a solution soon!!
Kind regards,
Monty
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May 20, 2014
I am trying to write some code to search for similar strings. I am creating a database with records that all contain street addresses. These addresses may have more than one record attached to it, and we would like for folders to be created containing the records with similar street addresses. Problem is, all the existing records are from an excel spreadsheet that did not contain any data validation, so there are several instances of:
123 Street
123 st
123 street job 1
123 st job 2
etc....
So I am trying to write code to prevent this from happening in the future, by searching the database for a similar street address and asking the user if this is the address they are trying to enter. I have been trying to do this with the DLookUp function, as such:
Private Sub ProjectName_AfterUpdate()
Dim stLink, pName As String
pName = Me.ProjectName
stLink = DLookup("[ProjectName]", "tblMaster", "[ProjectName] LIKE '" & pName & "%'")
If IsNull(stLink) Or stLink = "" Then
[Code] ....
I have worded the stLink line different ways, and have used (*) instead of (%) but nothing is working. The CODE is working, as in no errors, but it is not finding a similar project that I know is present.
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Apr 21, 2014
I have been looking around for a while now to learn how to show in a subform similar records from the same table, and a way to link them together.
I work for a mental health organization and we have a call log database that we create a new record every time a person calls us - this allows us to track the outcome of these calls. Over the last 3 years we have about 10% repeat callers. I am trying to find a way, when creating a new entry, to see if this person has called before, and if they have, link their past contact (record) to the new contact (new record).
For example.
Caller: John Smith (555) 555-5555 (this is the new record)
in the subform, a list would populate all the 'john smith' records with an option to link or attach them to the new record.
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Jun 9, 2014
Is there a way to merge duplicate/similar Access 2010 records into one record?
I have an Access table with 1,000 duplicate records, although they are similar and not exact duplicates. As you can see below, some records contain information that other records do not. Yet, the primary key is the same for all duplicate records. I want to find a way to merge data from filled cells of duplicate records into empty cells for each duplicate record. I do not want to concatenate the data (i.e. combine last and first name, etc.). I only want to fill empty cells if there is a match for it in a duplicate record. I will delete the newly exact duplicate records later. Short of correcting the records by hand.
Example
Code:
LastName FirstName SSN Address Phone Email
Doe John 123-45-7891 123 Anywhere St. NULL john(at)gmail.com
Doe John 123-45-7891 NULL (123)456-7890 NULL
Desired Result
Code:
LastName FirstName SSN Address Phone Email
Doe John 123-45-7891 123 Anywhere St. (123)456-7890 john(at)gmail.com
Doe John 123-45-7891 123 Anywhere St. (123)456-7890 john(at)gmail.com
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Dec 22, 2004
A very elementary question - but I'd be grateful for an answer.
I have two tables (or perhaps two queries) each with a key field. If all is well, there should be complete correspondence between the two sets of records. That is, if there's a record with key 12345 in one table, there should also be a record with key 12345 in the other table.
I'm looking for the simplest way of checking whether or not this is the case, and, if it's not, detecting which records in one table are unmatched by any record in the other.
Will
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Aug 6, 2005
I have a database called LettersDatabase this databse holds all the letters that have been made including the path to the doc. I use SSN to ID the letters to customers on the Contacts Database.
Contacts database also uses the SSN to id the contacts
I have a form that creates new letters for customers in this form I have listbox that queries the LettersDatabase for all matching records based on the forms contact SSN to see how many letters have been made for that customer.
The problem is that my listbox only shows the first record matching that SSN but there are more records in that LettersDatabase with the same SSN that I need to have diplayed on the listbox as well.
I may be writing the query incorrectly.
Here what I have for the query on the listbox
Like[Forms]![LetterMaker]![txtSSN]
I try adding (&"*") to the end of the query but that does not help.
If anyone out there has the solution to this problem it would be greatly appreciated
Thank you
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Feb 27, 2006
Hi can anyone please help me out. How can I delete records from one table, where matching in a second table?
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Mar 1, 2006
I need to have the sum of the "matching records" of a subform, exported to a variable of the main form, in order to use it in an if condition.
e.g. "IF a client has brought X? times the vehicle A for a service of type B, THEN do ..."
How do I get the X value in a variable within the main form which presents all activity for all clients (by means of a subform).
I hope this is clear.
Plaese help me, guys. You 've done it before, you're so great!
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Aug 5, 2005
I have two tables Table 1 and Table 2. Table 1 has 6 fields 175 records and Table 2 has 4 fields and 330 records. The first three fields in both the tables are the same. I need to find all records in the first table that have a matching record in the second table based on those first three fields. How can I accomplish this? Any help would be greatly appreciated.
Thanks
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Dec 6, 2005
Hi
Apologies if there is a previous post that answers this - I've looked, but can't find anything that works.
I have two tables with identical structures. tblA contains a subset of the records on tblB, with identical values on all fields except ID. I need to remove from tblB all records appearing on tblA. I thought the following would work:
DELETE tblB.* from tblB
INNER JOIN tblA ON tblB.Field1 = tblA.Field1
AND tblB.Field2 = tblA.Field2
AND tblB.Field3 = tblA.Field3...
but I get "Could not delete from specified tables".
What am I doing wrong? Or is there an easier way?
Dave
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Sep 30, 2007
Hello there,
I have tables like so (simplified):
-=Holiday=-
HolidayID
Name
Date
-=Booking=-
BookingID
HolidayID
ClientID
What I would like to do is create a query which returns a list of all the holidays with a field showing how many bookings have been created for each holiday. This almost works:
SELECT Count(1) AS CountOfBookingID, Bookings.HolidayID
FROM Bookings
GROUP BY Bookings.HolidayID;
...but it does not display holidays where there are no bookings.
Is it possible to create one which will show all holidays even if there are no bookings?
Thanks!:cool:
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Dec 16, 2005
Hi,
I've been trying to get this for ages now - both in the design view and in sql:
I have 2 tables - one called DrawingsRegister and a related one called DrawingRevisions. Each drawing has one or more drawing revisions. I want a query that will show each drawing (just once) that has more than one revision:
SELECT tblDrawingsRegister.DrawingNum, tblDrawingsRegister.DrawingName, tblDrawingRevisions.DrawingNum
FROM tblDrawingsRegister INNER JOIN tblDrawingRevisions ON tblDrawingsRegister.DrawingNum = tblDrawingRevisions.DrawingNum
WHERE ((Count([tblDrawingRevisions]![DrawingNum])>"0"));
Thanks for your time,
RCurtin.
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May 21, 2007
I have a form where a user reviews information input by another user, once they have done this they sign it off by selecting their name from a drop down list. On this form there is a scrolling message which tells the user how many un-signed entries there are. This works fine until there are 0 (zero) entries to be signed off.
The scrolling message is linked to a count query which basically counts any records that does not have a name entered in the required field. I have done this with ' Not Like "*" '
Like I say it works when there is one or more entries to count, but as soon as there are none the query does not output a zero it is just blank. This is the problem.
I need some sort of statement to say if there are no matching records please display a zero.
Any help would be much appreciated!
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Dec 11, 2013
I have two tables, categories and items. I have a form that is linked to the categories table and a subform that is linked to the items table. The user selects a category on the main form then an item to add to the category on the subform. (all of this is functioning correctly - but you need to understand for my question.)
Both the form and the subform have a text box that displays a record from their respective table, for the example we will call this color.
What I need to do is create code that checks the color text box from the category (main form) against the text box for the item (subform) and if they are not a match I need to display a message box - from where I can then add the necessary actions.
EDIT: note this is not a query on an entire table or 2 it is just comparing the two text boxes on the form and subform
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Jul 15, 2013
Suppose I have two tables with fields as follows:
Assigned Courses (Courses that employees should do)Employee number
Assigned Course Name
Fulfilled Course (Courses that employees have done)Employee number
Fulfilled Course
Now I need to do a query that tells me which employees haven't done. Is there anyway to do that that is not an exclude query?
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Dec 3, 2014
I have a form that is bound to a query that returns all records matching a set criteria (namely, the field ApprovalDate is null); the idea is that the user clicks on a command button which gives information, and if the user chooses to continue (vbYes), then the field ApprovalDate has its value set as the current date, and the record is saved.
Next, I have put in DoCmd.Requery to requery the form and effectively go to the next record wanting approval - this appears to work fine, however I need to add something to the code that handles a null return from the requery - preferably a message box and then have the form close.
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May 12, 2015
I have a datasheet form listing prospect information.
Each prospect is assigned a position, there can be more than one prospect with the same position.
I'm trying to get a text box to lookup the prospects position and search the remaining rows for matching positions and return the total number found.
This data does not need to be stored anywhere, just a reference value for users to look at.
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Jul 24, 2014
I am trying to create a query in Access 2010 for records that don't match based on the following criteria. I have two tables with identical ID's and I need to do a comparison on the amount field between both tables and only return the records from one table displaying all fields plus the amount fields that do not equal. I tried this in the wizard unsuccessfully.
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Jul 9, 2007
Hi All,
I have a strange problem that has me beaten.
I open an Access 2003 table, sort on field "Job Number", click the Find button and enter a job number.
I expect to find 30 records, but Find only hits 8 of them.
If I over-type the Job Number (with the same numerics), Find is then able to return this record.
If I place my cursor in ANY of the 30 records and click Filter by Selection, all 30 records are included.
I thought there may be a non-printable character or a space hidden at the end of the field, but I expect both Filter and Find would return the same records.
Even more strangely, when my client zips the MDB file and emails it to me, this behaviour does not occur on my PC.
Has anyone else comes across this behaviour? If so, can you please point me in the direction that will help me find a solution.
cheers,
Mark Chimes
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