Tables :: Allowing Duplicates Based On Multiple Fields
Dec 23, 2014
I've been playing around with a new database design and ran into a possible 'error' that I would like to avoid.
It's going to be a payroll database to store time codes for hours spent working on specific projects. I have been struggling on how to put this together to fit with what we've been doing for years and I think I hit a few breakthroughs this morning.
However I want to avoid this error of possible duplication of entry.
Simple table set up - primary key is just a running integer; Employee ID; and Week Ending Date.
I can have multiple week ending dates for a specific employee; but I want to avoid having the same employee with the same week ending date. I cannot set up either field as being unique.
I am fairly new to Access and I would like to create a form to allow users to create their own query. I would like to allow users to select multiple fields (perhaps with checkboxes?) from all possible fields in a table to return either all data from that field or narrow their search by inputting certain criteria or choosing from a drop down into a text box. Is this possible in Access and any detailed specifics on how to achieve this?
I have have 2 feilds in my database, there can be the same value in one feild but not both.....for example say NAME and ADDRESS i can have the same NAME for more then one entery and i can have the same ADDRESS for more then one entery but i cant have the same NAME And the same ADDRESS....anyone know how to do this? :confused:
I have a form (form1) that will populate with records (table1) based on key fields of "Project Number" and at time-points we will update part of the record, and then we create a word document detailing the updates with a couple of other bits of information not in original record.
Basically I want it to go from the original form (form1) into another form (form2) (via a command button) taking the key field of "Project Number" where it will ask the bits of information that we don't need have already and the contact person.
I have got this to store in a different table (table2) using a key field of just "ID" from the original records (table1). A list of contact people are in a separate table (table3) using a key field of "contact name" which will include other details for them such as address and phone number.
So from "form2" I would like to produce a report that contains information form "table1" based on the "Project Number" and "table2" based on "ID" as just been generated and "table 3" which is based on "contact name".
So I want to pull information form the records based on the certain key fields but struggling for it to pull it successfully...
Got relationships between: "contact name" fields in both "table2" and "table3" "project number" fields in both "table1" and table2"
In a query for the report I have all the appropriate fields, but only have the "contact name" and "project number" from "table2" is this right? or do I need both in?
Or would it be easier to draw all this information into "form2" but don't really want to select that many drop down boxes or would it be able to pull it from the "contact name" and "project number" boxes????
Ok.. I have been racking my brain for hours trying to figure out how to do this. Maybe someone here can help me figure this out.
I have 2 tables. "AR94" & "RPIN" I need a query to look at the "Provider_PIN" field of both tables in order to find duplicates between that field in both separate tables at which point I need it to say If a duplicate provider_pin exists in the AR94 table & the RPIN table Then remove that provider_pin from the "RPIN" table.
The final result should be that the only records showing in the "RPIN" table would be those provider_pins' that were NOT found in both tables.
I have created a database which holds architectural drawings for my company. The drawings have a number (dwgNumber), a name (dwgTitle) and a revision (dwgRevision). Each number should only have one title but cannot be unique as they can have several revisions. I am looking for a way to allow the users of the database to only enter a drawing title for a drawing number once. This is because if more than one person is accessing the front end at a time, they may use the same drawing number for different drawings.
For Example:
----THIS IS FINE Number: A001 Title: Drawing 1 Revision: P1 Number: A001 Title: Drawing 1 Revision: P2
----THIS IS NOT OK Number: A001 Title: Drawing 1 Revision: P1 Number: A001 Title: Drawing 2 Revision: C1
Basically, each number can only have one title assigned to it.
How to prevent duplicates on the combination of two fields - text & numeric?
I'm currently using the code below that warns users when the combination of two fields have already been used. (Combination of the TWO fields has to always be unique so if used again will warn the user)
Works well when both fields are numeric but fails when the JobDetails field is changed to text in the main table (tblPPMPLanner)
Code: Option Compare Database Option Explicit Private Function IsDuplicateRecord() As Boolean On Error Resume Next Dim PreviousRecordID As Long IsDuplicateRecord = False
[Code] ....
The field that should be a text field is called "JobDetails"
I am trying to modify an inventory management database. I want to prevent duplicate entries to specific fields in centralized table. The table is called Work Stations. Its function will be to track various computer equipment by a specific work station name. Each of the items will have a unique asset tag.
The primary Key for Work Stations is WS-ID. The fields I am trying to prevent duplicate entries in are WS-Computer, WS-Docking Station, WS-Monitor_1, WS-Monitor_2, and WS-Switch. Each of those fields are primary keys in 4 different tables that conation more detailed information about item. The exception is WS-monitor_1 and WS-Monitor_2 have a one-to-many relationship with Mon-Asset Tag in the monitors table.
The goal I am trying to accomplish is when a work station ID is created or modified duplicate entries are prevented to those fields listed above. The computer, monitors, docking station, and switch fields in the work station table may contain data or may be null.
I have tried to set the Indexed Option to Indexed (No duplicates) for each of the fields and I have also tried setting Yes to Ignore Nulls in the index option on the table design tab for the individual fields. Both options have returned the same error stating the changes would create duplicate values, in the index, primary key, or relationship.I have not created form for this table yet as I was trying to get no duplicates option to work first. I have verified the data and the only duplicating fields are the Null fields
I have 4 or 5 tables. Most of the fields are exactly the name but they all have at least 1 to possibly 5 or six fields that are not in the other table. Additionally there are some duplicates within the individual tables as well as across tables.
i.e.
I have a
Student Table - with all the info on the student as well as a column called student that identifies them as such however it does not have the columns parent, donor, appeal, designation..... Parent Table - with all the info on the student as well as a column called parent that identifies them as such however it does not have the columns student, donor, appeal, designation..... Donor Table - with all the info on the student as well as a column called donor that identifies them as such however it does not have the columns student, parent, appeal, designation..... Appeal Table - with all the info on the student as well as a column called appeal that identifies them as such however it does not have the columns student, parent, donor, designation.....
-A person can be within one of these tables more than once but with all the same information. -A person can also fall into all of these parameters so they could be on every table with the same information in addition to the missing columns,=.
Question 1 : what is the best way to dedupe and delete the individual tables (they all have account numbers) Question 2: I was thinking create a new table with all the columns available, however how do i dedupe across tables while populating the additional columns from each?
We are a non-profit that does blind mailings for our membership drive. The company who we buy names and addresses from sends us a delimited file that has these fields as the headings
" ID, FULLNAME,COMPANY, ADR1, ADR2, CITY, STATE, ZIP, FIPS"
Once they send out the mailings, people then send in back a remit slip with a contribution that gets scanned through a program that creates a file that gives us these titles
"ALT ID, AMOUNT PAID, RUN DATE, TENDER, FUND, PURPOSE, SOLICITATION, MEMBERSHIP QUESTION, MEMBER TYPE, CONSTITUENT TYPE, SEGMENT"
The "ALT ID" and "ID" are the same in both tables.
I need to find a way to merge the tables and combine the fields that have the same ID # , and then have it create a csv file that reads like this (see below) for only the files of the people that responded so that I can import it into our membership software.
I need to count records based on multiple criteria from two different tables. I have two tables (i.e. "tblTasks" and "tblTaskHistory"). The tables have a one-to-many relationship based on the "TaskID" field. "tblTasks" has a field called "AssignedTo" and "tblTaskHistory" has a field called "TaskStatus". I need to know how many tasks have been "reopened", the "reopened" status is located in the "TaskStatus" field in "tblTaskHistory". I need this count against a unique listing of employees which can be found in the "AssignedTo" field in "tblTasks".
Basically in my order details table i have the following fields
Product Unit Size
At the moment i have the Product field with a dropdown that gives me all the products from my ProductT. But once i choose the correct product in the unit field it gives me all the possibilities of every product not just the units associated with that product. ie
ProductT Grasshopper Box1000 Adult Grasshopper Box1000 Subadult Worm 10pz Big
When I select the grasshopper product and move on to the unit field i also get "10pz" option but this is not a product available.
How do i set up validation of the fields Unit and size based on another fields data?
I'm currently working on a database that includes several tables with information about current and former employees. One of these tables has the training history for each employee, where the columns are the type of training (currently 37 types), and the data entered for each is either null or the date they completed the training.
I have a form bound to this table that allows the user to edit and add records, but additional types of training will surely be added in the future. I would like for the user to be able to click a button on the form that allows them to add a new training field to the form and underlying table. I understand that users should typically not be allowed to add new fields, but I can't think of a better way to account for the fact that new training will surely will be added in the future.
I have two tables of data, each relating to three business branches (branches A, B and C).
Table 1 shows the expenditure of each branch (by fuel, premises and wages).
Table 2 shows a number of units for each branch (mileage, floorspace and sales).
What I would like to do is calculate unit costs, based on the expenditure in Table 1, divided by a relevant unit in Table 2. The catch is that I want to have a third table which allows the user to specify which expenditure (from Table 1) is combined with which unit (from Table 2) to generate the calculated unit costs. I've been able to do this in Excel, and have attached an example. I've also attached an incomplete Access version with the first two tables. Given the complexity of my actual data, I feel this could be better handled in Access than Excel.
A small issue I was wondering of for a few day . Is it possible in SQL query to SELECT multiple fields from multiple tables ? Example for the question is
Code:
dim my_var as String my_var = "SELECT Emp_FName , Emp_LName , Emp_Adress " _ & " FROM Table1 " _ & " AND Emp_Date_Of_Payment , Emp_Sum_Of_Payment " _ & "FROM Table2 " _ & " WHERE Emp_ID = 3 "
Is this code actually valid in SQL gramatics , and is it usable if passed to a Recordset variable ( rs = CurrentDB.OpenRecordset(my_var) ) ? Just FYI - The two tables are not related and I want to keep them that way (If possible relate their records just via SQL/Vba )
I have 10 tables, 30+ fields on each table (every table has the same 'account number' field). I only need from 5 - 20 fields from each table. How do I get the certain fields from each table and put them in a table, query or report?
I have a database with three users, only one of whom has editing privileges. As such, I didn't see the need to setup a front end and back end (nor did I know how at the time). Anyway, that's not the issue. The database is saved on a networked computer that all users can access. Unfortunately, when accessing the database in the shared network folder, only the first user can access it. Other users will double click the file and virtually nothing happens.
However, users can instead open Access first, and open the file through the program fine. Why this would be the case and how I can have multiple users open the file from the shared folder?
I'm trying to build a query that uses the information pulled from controls on a form called "CharacterCreation" - 2 of the controls are "Race" and "Class", and the form stores this data in a "Characters" table.The query needs to refer to the Characters table, and another table called "Modifiers".In this second table I have several numerical fields such as hp, str, etc, and I have two other fields called "Type_Modifier" and "Type" Among the Type_Modifiers are Race and Class, where their corresponding "Type" could be for instance Demon and Magician..
So the idea is that when I mark on the form (and thus creating the record in the first table) a Race of "Demon", and a class of "Magician" I want the query to refer to both of these fields, and sum the values in the second table where the "Type" is either "Demon" or "Magician" or whatever I decided to choose. I feel like I should be able to figure this out but I'm having a hard time..Here's an example of the SQL I've tried that shows nothing.
Code: SELECT Characters.Char_Name, Sum(Modifiers.hp) AS SumOfhp FROM Modifiers INNER JOIN Characters ON (Modifiers.Type = Characters.Class) AND (Modifiers.Type = Characters.Color2) AND (Modifiers.Type = Characters.Color1) AND (Modifiers.Type = Characters.Species) AND (Modifiers.Type = Characters.Race) GROUP BY Characters.Char_Name, Modifiers.Type HAVING (((Modifiers.Type)=[Characters].[Race]));
I also tried this, which I thought would work but it displays nothing as well.
Code: SELECT Characters.Char_Name, Sum(Modifiers.hp) AS SumOfhp FROM Modifiers INNER JOIN Characters ON (Modifiers.Type = Characters.Class) AND (Modifiers.Type = Characters.Color2) AND (Modifiers.Type = Characters.Color1) AND (Modifiers.Type = Characters.Species) AND (Modifiers.Type = Characters.Race) GROUP BY Characters.Char_Name, [Type]=[Characters].[Race];
I need to know if I can store data in more than one field, without allowing Duplicate entries.
Example: We have to send out letters with a claim number on it, sometimes we need multiple claim numbers on a letter, up to about 10 claim #'s is the most I've seen thus far.
We mail merge into Word to create the letters.
However, these claim numbers cannot be duplicated within the database and in order for this to work with the mail merge, I need several fields to store the claim numbers.
To be more specific. I probably have a bad data structure as I was kind of rushed and a little inexperience with putting the database together. It's for work and sometimes management just doesn't want to wait, they are so negative.
In brief, most everything is in 1 table and I know from reading this forum that I shouldn't do that, but that's another story.
Further, a claim# is tied together by the same claimant, the relationship code is what separates the claimant with the family, the insured id# is used for all claimants within the family.
You can also tie the claim# to a provider id#, some providers such as clinics and large hospitals have multiple providers that use the same provider id#, so a suffix code is used to separate the providers within that same #.
Please feel free to ask additional questions and I will give you the additional information you need to help me. Thanks again.
P.S. - Last year I created the database and this year I am improving it, so expect more posts from me in the future. I really appreciate all the help I get from everyone here!!!!
I need to know if I can store data in more than one field, without allowing Duplicate entries.
Example: We have to send out letters with a claim number on it, sometimes we need multiple claim numbers on a letter, up to about 10 claim #'s is the most I've seen thus far.
We mail merge into Word to create the letters.
However, these claim numbers cannot be duplicated within the database and in order for this to work with the mail merge, I need several fields to store the claim numbers.
I am working on a database which has two tables used as part of a registration and login process.
I would like a couple of fields from table one to automatically update in table two, once the fields in table one are populated without using an 'on click' event.
The reason I would prefer not to use an onclick is because the completion of the form used to generate the users table does not require any buttons for the data to save.
I'm trying to build a form based on a table where the user can also enter data to update the table but with data fields not originally in the table. Below is a summary of what I have and what I need:
1.) A file that will be uploaded daily into a Table (ie name Denials extract table). 2.) A form bound to table Denials extract 3.) Additional fields that will be updated by users that is not included in this table b/c they are not available in the system we are getting the data extract from. 4.) The user will look up a key field that will allow them to review it in our system. Once they "work" the record, there will be multiple fields that they will update with this information that are not in the bound recordsource (table Denials extract).
Do I create another table with these fields even though they will be blank at first and make them a subform that will have a "primary key field" that will link the main form with the subform? Will they need to "update" a whole new table? Not really sure how that would work since they will be updating fields not in the bound table.
how or what function (DLookup) should I use to prevent duplicate records based on multiple fields? I want to look at data in three fields that can't match existing data in those three fields. It's ok if one or two of the fields match but not all three.
I want to create a parametric search for tools on the shop floor based on multiple fields [using VBA]
I've had a good search and turned up lots of useful things; but each example insofar has been fairly specific as opposed to a guide on how to implement it in a wider setting.
Let us say, for example, that my database has three fields each with a bound combo box: location; house-type; number of bedrooms
As I type in location, I want it to filter my results in the other boxes to that location (should be a simple case of applying a filter?) - which leaves me with all the house-types and bedroom-counts in that location.
As I type in the house-type, I want it to then narrow down the search again to filter the "location"+"house-type" to leave me with the available number of bedrooms.
What is the best way to implement this, given that I have about 20 fields*, some of which will inevitably be blank: as the user types in (or selects using combo boxes) the data required, it narrows down the search - and finally there's a "search all" button which returns all results matching the current criteria.
When I say "implement" I mean what underlying structure should I use. Is it best to create a query and update the query as items are entered, or would it be better to filter the form that's having the data entered?
The fields are organised sensibly into sub-forms for various characteristics (i.e manufacturing data, materials data, cutting data, etc, etc), don't worry - it's note a huge mess - and the code is all there to pull the data together as required!
I have two tables, one table (1) hold three fields, one of those fields is the master key (index). The other table (2) has a field which I want to lookup from table 1, that part is working. In the combo box I get all three fields displayed as I make my selection. I want to copy the other two fields as text at the time the lookup index is selected. I do not what the fields to automatically update each time the table is displayed. I have looked at update macros, I've looked at VBA.
