General :: Linking Tables Without Duplicating Data?
Dec 12, 2012
I have two tables that I'm struggling with how to relate to each other. One is tblHardware which contains all the items that we sell. There are no duplicates in this table. The only columns are a part #, description, long description, and cost.
Then I have another table with is tblPackages. These are the packages we sell which pull from tblHardware. This one just has an autonumber, description, and image (image I'll add later and not worried about now).
What I'm struggling with is how to tie these two together because one Package will contain multiple items from Hardware however there are multiple Packages that have the same Hardware items (17" monitor for example).
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Dec 3, 2012
I have 2 identical database in terms of structure but it differs in data.
Basically I would like to import data from subDatabase to mainDatabase and ensuring that there are no duplicate records.
I have used the "link to datasource method" through importing the tables to have the "updating" function.
However, this method also means that the records in mainDatabase are also imported over to subDatabase which I do not want.
Is there a method to ensure that the records are shared/update one way only? (i.e. import from subDatabase to mainDatabase and not main to sub?)
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Apr 15, 2014
I am doing a project where we are collecting home owner data and information on all the dogs in the household. The data for homeowner has an autonumber primary key because no field is unique or has been consistently collected. I am struggling to link the data for the dogs to the owners because an autonumber primary key will not work since not all homes have dogs. I need to have this set up so that people who are not tech savvy can look up each homeowner (or dog) and get the dog (or home owner) information. And to make things even more fun we need up to 15 potential dogs per household each of whom will have 18 different pieces of data collected.
It looks a little like this (and you can see my not matching ID issue):
Homeowner table
ID First Name Last Name...........Total Dogs
1 Max Maximus 5
2 Min Minimus 0
3 Mus Musculus 1
Dogs 1-5 table
ID Date Dog 1 Name Dog 2 Name .......Dog 5 Name
1 (Max's) 4/11/14 Bobby Billy Betty
2 (Mus's) 4/11/14 Jojo
Min will have no dog records at all, just home information.how to link the dog's to the homeowners .
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Aug 28, 2012
I want to work on SQL Server tables located at my work place at home using Access. My question is; is it possible to link SQL Server tables on a server to my lap top computer using "Remote Desktop" or will I need to install Access onto the server and if tables can be linked using Remote Desktop how do I link them? I am using Access 2010 and have Windows 7 professional installed on my lap top.
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Jan 4, 2013
Why is it when I click on the TblCarerdetails and try to open a record with the plus sign I am present with the following error message Enter Parameter value CarerID///The frmCarerRota seems to be working ok, the relationships seem to be ok i.e TblCarers can have many rotas i.e. a different TblRota each week (1 - M)
TblClients can have different TblRotas each week (1 - M).why the tables are not linking correctly, if I click on the TblCarer plus sign.I should see the Rota details and a plus sign. If click on the plus sign, I should see the clients details.Therefore I am assuming that my relationships are not correct, I think I need to add an association table, but where and what fields do I need to add/create.
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Aug 23, 2013
Im in the process of developing my first database for my bonsai (small trees) collection. So far, ive developed a table of each of the trees I have, with fields such as Species, Where Bought, Cost etc and ultimately a link to a recent photograph (my next challenge). Ill be adding to this as my collection grows (in number and size). To avoid information duplication I have a separate table of care instructions for each species of tree with type, position they favour (eg Hardy/Delicate), watering requirements, wiring advice etc.
I now want to have a field in each of the records in the first table to its particular species care instructions as simple as that, or so I thought. ie for each different pine I want a link to the care guide for pines, and only pines. And preferably in a table format.
I need a one (second table) to many (first table) relationship and have linked them appropriately through primary field (species) and foreign field (care details). I have tried various Controls in the Design View but cannot get the field to show just one care record (ie the one for that particular species of tree). I realize this is possible, as its a common feature of a good database, and have found it being used in the various templates available - but not how they were created. The best Ive got to is using a Combo Box but this shows all of the care details records and in a column view.
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Sep 26, 2012
Currently trying to build a database for customer management and order placement/tracking. Want to set a couple of rules so that if I for instance click yes of billing and shipping address the same that the database will automatically fill the shipping address with the data I inputted for the billing address in the same table.
The other issue I can see I'll run into is, I want to be able to select one of the company ID's (made up of a three letter abbreviation of the full company name) in the product ordering table and it will automatically fill in the rest of the customer data (phone, email, address etc) data into that form.
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Jan 5, 2005
Hi everyone,
I have a quick question. And perhaps a strange setup. We have an excel spreadsheet set up with a bunch of data.
The powers that be would like me to set up a database utilizing the spreadsheet as the foundation of the database. However, they would still like to keep the spreadsheet as one of the primary ways to enter/edit data along with the database.
Therefore, I was wondering if there was anyway..that I can set up a link(?)
between the access database and the excel spreadsheet in such a way that if one is editted the other one would be editted accordingly.
I know this is a replication of data etc etc. But this is what I was asked to do. Im not sure if it can be done anyway.
I know I can link in the excel spreadsheet into the access database...but can I create a table..based on the linked information..and add more rows and column to it?
Let me know your thoughts!
Thanks I appreciate any help!
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Jul 3, 2006
ok i have two tables.
the main table tblquery and the second tblreturns
i want the data from tbl query
return number
date received
date processed
to be the same in the tbl returns is this possible?
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Feb 4, 2015
I've been using a series of 5 tables to export an XML file using Access's native XML export. In order to keep the XML intact, there are relationships setup to link each sets of elements together via an ID number(link) field in each table.
Access does a great job at exporting, but then we need to rely on another program to delete these link fields that links the tables together so our XML validates. Additionally, we use this program to reorganize some of the XML, as one of our tables puts itself at the end of the XML element and not in the middle where it should be. This is not a problem when I'm dealing with a few hundred records, as the 3rd part program does the trick. The problem is when I have enough data to generate a 30+MB file that my other program chokes on when trying to manipulate the XML.
So my question is...how can I export these 5 tables to XML while omitting the linking member fields and organizing it how it should be? I have examples of code below. How Access Exports it
Code:
<MASTER-RECORDS>
<RECORD-ID-NUMBER>5648743524654</RECORD-ID-NUMBER>
<RECORD-ID-NAME>JOHN SMITH</RECORD-ID-NAME>
<link-for-pseudonyms>123456</<link-for-pseudonyms>
<PLACE>USA</PLACE>
<DAY>MONDAY</DAY>
[Code] .....
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Jun 28, 2005
Right guys heres problem.
I link to an excel spreadsheet. all the data is except where Ive had to format a "column" of cells as text. This is done because in the spreadsheet the initial user enters data as text, numeric or a mixture of both (hope thats clear).
My problem is the data that was originally numeric and now formatted to text comes out at #num! ( Yes ive posted similar before) However, when ive imported the same data in to a pre-made table to try a different way of achieving the final job the numeric data (now formated to text) comes out like ---- e.g. instad of 1000344 it comes out 100034+007
And now Ive absolutly NO idea what to try next. Its one Ive never seen before. If i go in to either the linked spreadsheet or the premade table and over type the errors with the correct data - no problem!
So it seems like a conversion issue
Any ideas at all - Id be so greatful if you have1
regards
gareth
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Sep 28, 2012
I recently imported an excel file into access. Let's say it contained data for both domestic and international customers. With different things needed from each type of customer, once in Access, it became needed and easier to create separate tables- one for international and one for domestic. However, each customer needs their own unique id - and I need a way to link or relate the tables in a manner that it will not allow duplicate customer numbers between the two tables.
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Sep 21, 2005
Hello,
I know it's against any database logic but I need a code behind a a button to copy data from one field to another.
What I am trying to do is:
I have a table with two fields:
Father Last Name (txtFLN)
Child Last name (txtSLN)
When writing my data to the table (I use a form named MASTER), I type the father's last name and would like a button that copies that same entry in the other field?
Any help?
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Apr 20, 2007
Okay, I've learned TONS from this forum alone as a self-taught database user. But now I'm in a rut... I created a query that contains the following fields:
Termination Date, Name, Rehireable?(yes/no), and age (if statement). This is the if statement someone helped me to write:
Ages: IIf([Age] Between 16 And 20,"16-20",IIf([Age] Between 21 And 25,"21-25",IIf([Age] Between 26 And 30,"26-30",IIf([Age] Between 31 And 35,"31-35",IIf([Age] Between 36 And 40,"36-40",IIf([Age] Between 41 And 45,"41-45",IIf([Age] Between 46 And 50,"46-50","Over 50")))))))
At first glance things looked fine but I checked again and the data is all duplicated - each employee is showing one record for rehireable (yes) and another record for non-rehireable (no).
I'm not even going to think about getting into this more until Monday, so if you have any insight on why my data is doubled I would REALLY appreciate it. Thanks!
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Jan 27, 2014
I created a query using 2 tables, [tbl_transaction_details_b] and [Siemens_Contact_Info1]. Currently it is pulling 38 records (which is right and the same number of records in tbl_transaction_details_b). But when I add Line Number to the query (which is in [Siemens_Contact_Info1] I go from 38 records to 1019. Here is the SQL view before adding line number:
SELECT Siemens_Contact_Info1.[Mail Code], tbl_transaction_details_b.INVNUMBER, Format([INVDATE],"mm/dd/yyyy") AS InvoiceDate, "USD" AS InvoiceCurrency, Null AS [Canadian Tax Registration ID], tbl_transaction_details_b.PONUM, Null AS [Account No], Null AS [Payment Terms], tbl_transaction_details_b.SHIPTOCUSTOMERNAME, tbl_transaction_details_b.SHIPTOADDR1, tbl_transaction_details_b.SHIPTOCITY,
[code]....
What do I need to do in order to pull the line number for each record? Oh the line number is determined by the EQUIP_SEG which is also on [Siemens_Contact_Info1]
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Oct 14, 2011
We are a travel company and I am just setting up a new database with two tables - [Client_Table] & [Enquiry_Table].
Most exisiting clients call in when they want to make a new enquiry so the 'user' can go it to a form which creates a 'new enquiry' for that client.
We also download 'new enquiries' from our website. This data includes info that goes in to the [Client_Table] and [Enquiry_Table]. They download in to a XL spreadsheet. Currently I copy and paste the data (not sure if there's a better way) from the XL speadsheet in to a query. This query creates a new client record & a new enquiry record which are both linked by a primary key [Client_ID].
This all works however the problem I have is that sometimes existing clients enquire through the website. They do fill in a field to say they're an existing client but if I paste them in to the query as explained above it creates a duplicate client record.
The only way around this I can think of is it to take out any exisitng clients from the XL spreadsheet first, search for their Client_ID and then paste these enquiries seperately with their Client_Id's in to different query which only adds a new record to the [Enquiry_Table] and links them to their exisitng record in the [Client_Table].
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May 27, 2013
I am a girl guide leader trying to make a faster way to keep track of my unit's completed badge and program work. I have made tables for every area I need (I started with one table but it was too large to change into a form).
In total I have:
- Basic Member table (main information like their name and how many years they have been in, whether they are still in the unit, etc)
- Program area tables
- Interest badge tables
What I want to do is be able to "add/edit" members from the main form, then go to all the sub forms for their program and badge work -- problem is, how to link them!
I am using Access 2007-2010.
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Aug 1, 2012
I have an Access 2007 database with two tables (I will call them table 1 and table 2)
Both tables contain the same two fields. (I will call the FirstName and LastName)
Table 1 has an associated Form where the user enters the two names. When the value in either one of the two fields in Table 1 change I want the corresponding field in Table 2 to automatically update with the same value that were entered in Table 1. Basically I want Table 2 to automatically replicate the same data in Table 1. So if I type the text "John" into the FirstName field in Table 1 then the FirstName field in Table 2 will automatically update with the text "John"
I am new to access and am struggling with the automatic updating.
If the automatic part is too hard then I will be happy to attach the update action to a command button.
I have uploaded my database file with the two tables for reference. I want to get the fields (for all records) in table 2 to replicate table 1 so that when table 1 updates table 2 values changes to show the same text.
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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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Jun 15, 2014
There are 2 tables:
Table 1 has National Insurance Number, first name, last name, phone no, address.
Table 2: has National Insurance Number and email address.
Table 1 is the master table where it will link to table 2 containing the email addresses of the individuals.
However, there will be a lot of email addresses in table 2 which do not relate to any record in table 1 because I do not have the individual in my database yet.
BUT I want to keep their email address because in the future this person may enlist in my imaginary business and therefore - if they do I would have their email address!
1. Is this possible in Access?
In Excel, it would be the case of a simple vlookup from the email address field into another sheet containing the National Insurance Number and email address.
2. Would it be possible to establish a one-one relationship while enforcing referential integrity?
3. Is there a way I can establish a lookup which can be built into table 1 which can lookup the email address of a person in table 2, matching on National Insurance Numbers?
So in the future if new data is input into table 1 or 2 which results in a match of National Insurance ID numbers, the outcome would mean an email address is now paired to the corresponding individual it belongs to.
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Mar 18, 2013
I have been asked to design a database to replace our old excel sheet to log one of our customers server builds. It a four noded system and i require a seperate log for each node serial models of parts etc, qa checks.
I intitial started by just using one table but forgot the limit was 255 rows, i need about 600 - 700. So my plan is now to transfer to indivial table for each node. Then, a general table named Main for all my other details.
Although this seems simple, i now have the annoying task of being able to link them all together and produce a single PDF file to send to our customer whilst only entering our system serial number once to produce this.
My basic understanding will be to create a System Serial Number field in each table a link it via relationships, but if i produce a report with everything i need would it input my details for all four nodes? If so how would i set this up?
I will be splitting the database once completed and then making a ACCDE file for my techs to use.
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Jul 6, 2013
I created a form that allows users to enter data into the fields and populates the table.But can I have it do that and populate instead of one table, two tables?
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Jun 12, 2014
I have specific query related to Access, Currently I'm trying to create all possible combination of lot data. I need to know if this would be possible in MS Access.Below is simple example of what is required
Table1 Table2 Table3
Value1 TokenW GateA
Value2 TokenX GateB
Value3 TokenY GateC
Value4 TokenZ GateD
I have 3 sets of data for which I've to create all the possible combinations but with restrictions.Below are few of my restrictions
1. "Value2" always comes with "GateC" & Vice versa but, both don't exist independently.
2. "Value4" always takes "TokenW", But "TokenW" exists independtly as well doesn't need Value4 always.
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Jan 31, 2013
I have 2 tables.
Table one is for person ID
Table two is for number of absences
I created a one-to-many relationship with the update/delete option selected. It didn't work when I wanted to add new data into the tables (via form). Then I tried a many-to-many relationship (with a third table) but it doesn't seem logical to do so, as I only need to add particular data into one table, but need a field from the 1st to differentiate records.
(table 1 = one record per person, table 2 = multiple records for 1 person)
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Nov 5, 2013
We have an "item" table that contains information specific to an item (the item number is unique); and multiple "production line" tables. There is a relationship between the Items table and the Production Line tables (all 8 of them). Each item can be entered on 1 or more production line tables because one item may be produced on multiple lines and the settings vary based on the line they're produced. When entering an item in the Production table we MUST make a selection from the Item table.
Now, what I want to do is identify which item number(s) from the Items table does not have a specific field entry in ANY of the Production Line tables.
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Sep 7, 2012
I work in an office with Office2000. One branch of our non-profit organisation had a volunteer design a database in Access to track the usage of rented storage bins.The database works great for its intended purpose, however the volunteer is not available and the front-end is so locked down that I can't get into the table structure to run some usage queries I need for my own job, which is Resource Development (donations).
I don't know what to say to give more info, because the computer is a stand-alone in a different department detached from the network, so I have to physically go to the other end of the building & work in it, I can't get screencaps etc easily, and most of the menus have been disabled so it doesn't even give me the info about the version of Access etc.
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