Best Practices: Whether To Keep Two Tables Separate Or Share Single Table?
Jun 22, 2006
I have to redesign the database as things has changed. I've already built a table holding records of Clients along with their address information and some attributes that relates to Clients.
Now, I need to create a table for our Business contacts. This will also need to store address info and then some attributes relating to businesses.
The problem is I'm not sure if I want to take address out of Client table and have Client and Business table link to Address table to follow the rule of not having any repeating data or simply allow Business table to store address.
What would be the best thing to do here?
Thanks.
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Jan 9, 2012
I am new to Microsoft Access. I have built two entry forms for product release information. I have a drop box under the label customer for each specific customer. I would like for this form to send the data entered in the form to the customer specific table from the customer names in the drop box. I have tried to research and execute this myself thus have been very unsuccessful.
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Mar 9, 2014
I have 2 tables
- Staff Position(Unique Position Name, Description, Hierarchy)
- Training (ID, Name, Description etc.)
I essentially want a table with Staff Position as the Field, and Training as the Rows. The intersecting entries/matrix will be Yes/No to say whether that staff positions requires that training.
Simple Example
..................... Worker ........ Senior ........ Principal
IT Training ......YES ............. YES .............. YES
Accounts ......... NO ............. YES .............. YES
Management ... NO ............. NO ............... YES
I need the user to be able to add as many training entries and as many staff positions as they want. It doesn't HAVE to be that sort of format...
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May 30, 2014
What I have is a database setup with multiple tables in which different areas of my DC can input information simultaneously into their respective tables. I then have another database linked to it for myself to have a live view of each updated record. I would like to see all the records of each table in 1 single table (possibly just sorted ascending by time). Each table has the same Field headings but may have different qtys of records. As I will then have it linked to an Excel table to VLOOKUP from it.
I have tried Union coding but always get Syntax Error etc.
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Jun 15, 2014
I have a notes field in the customer table that is a memo field. An example of one customer's notes field data :
<div>20.3.14 Ordered 2 cartons</div>
<div>4.3.14 Ordered 2 cartons</div>
<div>18.2.14 ordered 1 carton</div>
<div>30.1.14 ordered 3 cartons SCENTED wipes</div>
[Code] ....
I want to extract the date to append to a date field in a "Calls" table and the comment into a text field in the "Calls" table. Is there a way I can do this via query or code?
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May 30, 2005
Hi,
Newbie stuff I'm afraid;
is it possible for the following to be achieved in Access;
When a user inputs data into a Form in order to add data to
an underlying table, can this same data populate another table
that has the same field? If so, how is it done?
Thank You
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Nov 7, 2012
How to export ms access table into excel workbook with separate sheet based on a value of field?
For Example:
I have One Table with three fields
Name Address Company
Steve a Apple
John b Apple
Josh c Dell
Pete d Dell
Pat e HP
Jacob f HP
Output in Excel(list for Employee by company):
Sheet 1 Sheet 2 Sheet 3
Apple Dell HP
Name Address Name Address Name Address
Steve a Josh c Pat e
John b Pete d Jacob f
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Jan 24, 2015
In my 2002 Employee table, I have a field which is a hyperlink to photos: C:photosemployee1.bmp (This is what I have entered into the Field as the Hyperlink)...However, from other PCs, I connect to this database and photo folder as a different drive letter, say Z, so when I am on the other networked PCs, and I click on the Hyperlink field, the data will not come up?
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Aug 8, 2012
I am having trouble relinking tables in my Front End database to my Back End database. My BE DB is on a network share and when I try using the link table manager to navigate to the correct folder I get an error message upon entering the network share folder that says:
The Microsoft Access database engine cannot open or write to the file "etworkfolder" It is already opened exclusively by another user, or you need permission to view and write its data.
I have permission to the folder and have ensured that this folder is a trusted location path.
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Sep 24, 2014
I have a couple of tables which only have a single field. Is it worth adding a second field in order to hold an ID number (is this commonly termed an index number?) for each entry.
My other tables with multiple fields include a field for an ID number and these tables are linked via these fields.
At this stage I cannot see any reason why, in the future, I would want to add additional fields to the tables which I am currently planning to make single field.
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Mar 20, 2006
is it a good practice to build a form from a query (bringing together all tables for one form) or is best to create a form directly from the table(s) using subforms?
Thanx 4 ya thoughts...
My old man always said "Don't tell 'em son show 'em"
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Feb 24, 2013
I've inherited a data base which has the address details of our members spread across multi fields i.e. Add 1, Add2, Add 3, Post town, Post code etc.
Not all the fields contain information which means when I do a mail merge for address labels there are blank lines.
I would like to either be able to create a single field in the table (like a memo field for example) which contains all the address detail, or create a mail merge without blank lines.
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Dec 29, 2014
I want to "lock" a record in a table so that it is read only and cannot be accessed/edited/deleted. Is it possible to lock a single record in this way on a permanent basis? It's actually the first record in the table.
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Feb 10, 2015
I'm using the MS Access 2010 ExportwithFormating action to export three tables to a single MS Excel 2010 workbook. The action overwrites the first excel worksheet each time instead of saving all three worksheets in a single excel workbook.
How can I export three tables into a single excel workbook.
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Oct 2, 2012
Is there a way to have multiple selections from a dropdown combobox writtin to the table with a semicolon separating them rather than a comma?
So when I select multiple items it saves as "first item;second item;third item" instead of the default format of "first item, second item, third item".
The reason is that when the data gets imported into my site, data within fields must be presented this way.
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Jun 18, 2013
I have two command add buttons on my form that go to two separate tables. I also have a go to next record button as well. Is there a way that I can put all three commands under one command button? They are already coded in VBA and all work properly individually, I just want to make it smoother if possible ..
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Apr 2, 2013
I have the logical process, but I just don't know how to put it into code.
I have a form with two boxes HireMovieID and HireCustomerID, with a button HireButton.
The two tables which I have are CustomerInfo and MovieList.
Here's the psuedocode for what I need to happen:
Code:
IF HireMovieID.Genre = "R16"
(IF DOB > Today - 16 years)
Display Error: "Too young"
ELSE Hire()
[Code] ....
I need to somehow make it so that the MovieID is valid, as in, if it doesn't exist then it comes up with an Error MsgBox.
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Dec 18, 2014
I am trying to count the number of times a client has engaged with our company. I have a company table, a reservation table, a rapid prototyping table and a project table. There is a one to many from the company table to each of the other 3 tables as can be seen in the attached picture.
Is there an easy way, in a single query, to list unique company names that exist in 1 or all of the 3 tables?
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Jan 21, 2013
I use a Access database to import data from an email generated from google docs..When the data imports to the table it creates a "Memo Field" with several lines of carriage seperated data containing the Form Field name & answer. (ie: Firstname=John, Surname=smith, etc)Is there any way to seperate this data in the cell into seperated cells in a new record?
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Apr 28, 2014
Let's say I have a table sort of like this one: [URL] .... (Table 1)
What I want to do is make another table that references the first table: [URL] ... (Table 2)
I want the cells in the Average field in Table 2 to calculate an average of all the values for records in Table 1 with Color fields that correspond to the Color field in Table 2 (this makes a little more sense if you look at the pictures). I could do this in Excel, but then problems would arise whenever I would add a new entry to the database, or re-alphabetized the data, since Excel math is depends entirely on the positions of cells, and I want these averages to be continually calculated correctly and to change whenever I add related records to the database.
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Aug 19, 2013
The interface being used is a main form with various tabs and a subform on each of these tabs.
There is one field ('max power density') in my database that is calculated using 'Max Rated Power' and 'Cylinder Capacity' however these are in different tables and subforms. The 'max power density' and 'max rated power' are in table and subform 1 but 'cylinder capacity' is in table and subform 2. Is it possible to keep them in separate tables/subforms and still calculate the field?
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Jun 23, 2015
I have a form with a graph on, and want to show two different lines on the graph, sourced from separate tables.
The commonality between the two tables is a date.
One line shows count of people available every 15 minutes and the other would should the demand for people on the same date, every 15 minutes.
Is it possible to do this and how?
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Oct 27, 2005
I am designing a database to enter daily/monthly performance numbers for employees and department totals. However, I don't want to have to enter the month and/or day for every category for each employee entered. In looking through these forums, nobody recommends a separate date table. But it seems time-consuming to have to enter the reporting month for every sales category for every employee. To wit:
TblEmp
EmplID
EmplName
HireDate
TerminationDate
TblCategories
CatID
CatName
CatType
TblDate
MonthYr
DayMonth
TblMonthlyPerformance
AutoID
EmplName
CatName
MonthYr
Amount
TblDailyPerformance
AutoID
EmplName
CatName
DayMonth
Amount
If I don't have a table for dates, then for every category for every employee, I would have to enter the date...right or wrong? Or am I thinking flat.
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Aug 19, 2004
While trying to "normalize" a developing database, a question has come up. I have two sets of information that will probably never change. Hair color and Eye color. Should these be put into a separate table or can I include those two fields in the table containing information about the person and then use the lookup wizard function in the table design and "type in the values I want"? I am using '97. Thanks.
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Jun 8, 2005
I've been doing a lot of research and reading on databases and normalization and things of that sort because I need to create database from scratch. I've been maintaining a db that someone else made, but it turns out I will have to recreat the whole thing because it's not useful anymore and the users need a more user friendly db. I have a couple of days some are:
tblTO
------
TONumber
Contract
Product Directorate <- combo box 20 items
Document Type <- combo box 15 items
TOManager <- combo box 10 items
tblTOItem
----------
Product <- combo box 13 items
JobNo
BasicDate
ChangeDate
ChangeLevel
TotalBillablePgs
TotalTextPgs
TotalArtPgs
Standard <- combo box 22 items
TemplateVersion <- combo box 20 items
SourceFormat <- combo box 15 items
SourceLocation <- combo box 10 items
The ones I have the arrows for will be a combo box on my form.
My question is should I make each of these field a table of its own?
For instance make the Product field a table and list all the 13 products there?
Or keep the Product field in the tblTOItems and in design view of tblTOItems use the Lookup Wizard and type in my values there to make a lookup column.
I have seen it done both ways, and I was just wondering which way is more efficient.
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Apr 29, 2006
I created a report where is lists sales volume by day. I was asked to create a table where data can be excluded from this report. The exclusion table consists of only three fields:
Date Department and a check box
What do I need to do in the query to have it exclude the data listed in this exclusion table. The table only holds data we want excluded, not all dates and departments.
I originally added the table to the source query and made the criteria "False" for the check box but when the query runs it does return any data at all.
Please help!
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