I have an access table which has a key using letters (A,B,C,D...etc). Against each letter there is multiple rows against each letter. However for testing purposes I only need to get a single row against each key and I was wondering if there is a function I could use which would return only the first record of data for each key?
View Replieswhat is the best/cleanest way to return the next primary key value which is in the format yyyy-###.These are case files for the current year, ### being 3 digit number incremented by one for each new case.
I could use a function that finds the last one, checks the date, increments by one and returns it, but maybe I could use a public property or a class? I'm keen to use classes more for code maintenance.With a class then: would i create a PrimaryKey variable of the class type/object, so when I need a new key I would just type PrimaryKey.NewKey, for example?
I'm trying to make a query to return payroll data, but I'm not sure how to get Access to return 0 where data doesn't exist for a particular month.
For example, imagine this table:
Name MonthHours
John 1 160
John 2 160
Dave 1 160
Dave 2 160
Matt 1 160
How would I get this ouput:
Name MonthHours
John 1 160
John 2 160
Dave 1 160
Dave 2 160
Matt 1 160
Matt 2 0
I've got a database of club members with names, addresses, contact info etc.
I need to send letters by post to those members that I don't have email addresses for. How to create a query to return a list of people whom I don't have email addresses for.
I know how to mail merge the info with the letter I've written in word, how to group people who's email address cell is empty.
How to return data from table1 only if table key matches table2 key.
I tried this but doesnt return me the data i want.
SELECT A.*
FROM tbA AS A INNER JOIN tbB AS B ON A.[ keyfld] = B.[keyfld];
I am trying to create a Totals Query which returns a data set between two dates. So far I have managed to select the data I want (Please see attached screenshot). However, I only want to select records between a date range working on my field [DueDate]. If I add the due date field to the current query then it removes the grouping and all records are displayed.
View 7 Replies View RelatedI need to create a query that strings data horizontally that corresponds to the primary key.
Example of what I am looking for
Fields:
Part_No,
Mfg_No,
Mfg_Name
Query Columns: Part_No, Mfg_Info (Mfg_No: Mfg_Name)
Also if the part_no (primary key) has multiple values I need the data to string horizontally like this:
Part_No, Mfg_Info (Mfg_No1: Mfg_Name1),
Mfg_Info (Mfg_No2: Mfg_Name2).......
I was just wondering if this is a possibility to do in one query or if it has to be run from a number of different queries.
I am currently developing a database from scratch for work (with very little Access experience).
The current query I am trying to run, if linked to a number of tables with different information.
What I am trying to do primarily is link stock to a specific "Host Name", "Serial Number" and "Part Description".
In the "Host Name" there is for example - A1-TX10-10001, B1-TX2-10004, C1-TX-10004 - The latter part of the name is a unique identifier number. The first part is the compartment in which the "stock" sits. So you may have all three components (A1-TX1, B1-TX2, C1-TX3) linked to the same unique identifier (10001 for example)
The serial numbers naturally are different for every single one and of course the srial numbers are linked to the "Part Description" - which will read something like....."C1-TX3 Transmitter", "B1-TX2 Combiner" etc.....
When I run the query like this the Host Name (which is also linked to the unique identifier on its own (10001) it returns everything under "A1-TX1-10001"
What I would ideally like to do is write a statement so that if the "Part Description" contains "A1-TX1" it will only return rows that contain "A1-TX1" in the Host Name and the same for "B1-TX2" and "C1-TX3" in the same query.
If "Host Name" contains "A1-TX1" to return "Part Description" to contain "A1-TX1"
When using the carriage return how do I format the data so it will export with 2 decimals?
In the example below I need the Estimated Material Cost to export in in format: 500.00 --- NOT 500.
MTLCost: [Estimated Material Cost] & Chr(13) & Chr(10) & [C]
My parameters are linked to a form and say:
[Forms]![FormName]![Field] or [Forms]![FormName]![Field] Is Null
Ordinarily this works fine in returning either the selected value or all values if left null.
I need to pull in data from a Crosstab query, which means setting my parameter labels to [Forms]![FormName]![Field].
The problem is that setting the parameter labels is conflicting with pulling all records if the form dropdown is left null.
If I keep my parameters simple and just say [Forms]![FormName]![Field] then the query works with the crosstab data, but I can't do that. I need to show any records if the dropdown is left null.
The crosstab data isn't specifically the problem but needing to set the parameter names seems to be
I think I may have found a workaround by labeling the column headings in the crosstab, which means I don't have to assign parameter labels
It would still be good to know if there's a way of making it work with the parameter labels but this will do for now...
I have a table with duplicate records (which is ok) and I want to return distinct data for each client.
It works fine when there is only two fields returned however, when I add a third field to the query it no longer returns only the Distinct records - I am getting Duplicates returned.
I.E
SELECT DISTINCT tblClient.ClientNo, tblClient.Name
FROM tblClient
Works fine with only the Distinct records for each client returned
However
SELECT DISTINCT tblClient.ClientNo, tblClient.Name, tblClient.Address, tblClient.OrderValue
FROM tblClient
Now returns Duplicates!
Is there a limit to the number of fields to be returned using DISTINCT or what else could be the problem? Should I be doing this some other way?
My Access 2010 skill level is intermediate.I have a table with 4 fields.
EmployeeID (Primary Key)
LastName
FirstName
SupervisorID
The problem I have is that in the Supervisor field, it identifies the supervisor by his/her EmployeeID. I would like to create a query or merge tables so that the SupervisorID can look for a matching value in the EmployeeID field and return the last name/first name.
This is probably the first of many questions. I have an Access2000 DB with two tables. Each has a field called ParID. I want to have a form with Table1 and Table2 listed. I want to query on a parcel number I keyin. If Table1 has the number in it, I want the form to note such. The same goes for Table2.
Example: Keyin: 123
If Table1 has 123 in it and Table2 does not, my form would note:
Table1= YES
Table2= NO
If they both had 123 in it:
Table1= YES
Table2= YES
etc.
Thanks,
SKK
I am looking up a product based on a unique code in tblProducts...I need to return one of two values
If the value of [Product type] = "multi" then return "multi"
else
If the value of [Product type] = "solo" then return the value of the non empty field in a range of fields
for example
tblProducts
PID (key) | PACKAGE TYPE | RED | YELLOW | BLUE
C13T0714010 | single | <empty>| yellow | <empty>
C13T0754010 | multi | red | yellow | blue
query
C13T0714010 returns "yellow'
C13T0754010 returns "multi'
Hello,
Firstly, I am very much self-taught on access, so there are several gaping holes in my knowledge, and my database structure is probably not wonderful! I have been learning as I go along, so in the initial stages I have built in several problems which I am now discovering!
My db is designed to track suggestions - i have a table where the idea, progress etc is stored [tblIdeasBank]. This contains an 'originator' (person's name) which is linked to a second table, where the names are stored [tblPeople].
Originally I set up tblPeople with the Primary Key as FullName (e.g. Joe Bloggs) (guaranteed to be unique with the small number of people that would be involved), and a second field called InitialLastName (e.g. J Bloggs). It is this second field that is stored in the tblIdeasBank. Data verification came from the user having to select a name from a drop down box, so there is no actual 'relationship' between the tables. (Didn't realise how useful they were at the time!)
The db has been so successful :confused: that it is now going to be rolled out across the company, which gives me two problems. To populate all the names, I need to import them from Excel, where I will have FirstName and LastName. I have now realised that it would be more sensible to just store these, and create InitialLastName where needed. Also, I may well have duplicate names, so I need to create a unique ID, and a proper relationship. (Yes, I know I should have done that in the first place).
So, I have:
tblPeople:
.FullName (Primary Key)
.InitialLastName
tblIdeasBank:
.Originator (stored as InitialLastName)
And I would like:
tblPeople:
.PersonID (Primary Key)
.FirstName
.LastName
tblIdeasBank:
.IdeaID (Primary Key)
.Originator (stored as PersonID)
With a One-Many relationship from PersonID to Originator
Any ideas how I would go about doing this and changing the Originator for each idea from InitialLastName to the relevant PersonID number, without corrupting the data?
I have searched through Google and various groups, but cannot find a useful answer, so any pointers gratefully appreciated!
Thanks,
Nick
I'm using Microsoft Access 2007
I have three tables: the 1st is for product's identification, the 2nd is for registered products, and the 3rd is for under-registration products
and the primary key for the three tables is the Registration Number
and there is a one to one relationship between the product identification and the registered products
and a one to one relationship between the product identification and the under registration products
What I want to do is to make an append query to move the under registration product to the registered product when its process is over.
One of my problems is with the primary key for the under registration products table, as they only get their registration number when the process is over. so how can I enter data into this table without the value of the primary key ?
I have a table (Quarter) which acts as a source for another table. When I create a query based on the latter in the Datasheet view the entries of the second column of table Quarter are shown. The PivotTable field however displays the primary key.Where do I need to make the change to only have the second column entries (Q1, Q2, ...) shown in the PivotTable view as well?
View 11 Replies View RelatedI am doing an outline design of a database system to handle the results from an archery competition in a couple of weeks.
Currently I have a table with a primary key to hold the information on the competitors (name, age etc.) and this is linked to a table via a foreign key (the archers name) to enable multiple scores to be recorded against each archer.
For the purposes of the competition only the first score shot each day is valid and so I am using a yes/no box to filter out these results.
What I would like to do is then filter the results such that only the largest of these first session scores is displayed for each archer. (i.e if archer A shoot 578 on day 1 and 585 on day 2 i would like the database to only report the 585, and similarly for the other entries).
I bounced into a big problem with Access 2010 where I cannot seem to be able to remove duplicates from a table containing millions of entries midway through a series of queries.
The table is formed like this:
Date - Serial Number - Reading 1 - Reading 2 - Reading 3
30.7.2013 - 1122334455 - 12345 - 987654 - 654321
30.7.2013 - 1122334466 - 12345 - 987654 - 654321
29.7.2013 - 1122334455 - 12210 - 987654 - 643210
29.7.2013 - 1122334455 - 12210 - 987654 - 643210
29.7.2013 - 1122334466 - 12344 - 986013 - 453213
As you can see, there are some rows which contain exact duplicates and some are a bit different. I wish to remove those fields with exact duplicates and only the duplicated fields. Running "Find duplicates" in Access gives me about 250,000 rows with such data.
I've tried a few options already:
- I cannot use the date as primary key as there are several serial numbers. I cannot use serial numbers as primary key, because there are several dates. Using reading value as primary isn't an option either.
- Microsoft says I should mark all duplicate values with an x and then make a delete query to get rid of all the x-marked rows. For 250,000 duplicates, that's a bit too much manual 'x-ing'.
- If I do a delete query using the Find Duplicates query as a base, it removes all 250,000 entries from that table, instead of just the 125,000 which had a duplicate elsewhere in the table.
- If I make a query which identifies duplicate data and gives me just one row for each duplicate, the delete query still deletes both entries from the original table.
- I could make a new query which would have only unique values using Totals as criteria (for instance, using First for the Date-column). However, this still leaves the duplicate values in the original table. Note that this database is already 800 MB large and new data is imported once a week, for the next decade or so. I cannot have a table get duplicates every week and leave it there.
- If I make a macro which would create the unique values table first and then deletes the old table, what happens next week when I try to import new readings? I would need to make a new macro each time I try to import new data as the table names change. Or is there a way to first run the unique numbers out, then replace the original table with the new one? With a 800MB database, this would put me dangerously close to the 2GB size limit. I wouldn't be able to use this as a part of a macro, as the database would have to do Compact & Repair each time it deletes the original table, midway through a longer series of queries.
- Having duplicates removed from the original import isn't an option either, as it comes in as a overriding excel sheet for the past 3 months, once a week.
As you can see, it's quite a pickle getting the duplicates out of the original table. This is just a small part of a very long macro, which takes about 15 minutes to complete, but due to duplicates the database is getting way too large.
I was wondering if it is possible to change the primary view for queries from the table view to say, the Pivot Chart view?
View 7 Replies View RelatedHi All,
I am wandering if it possible to check programatically whether a query returns a NULL result?
I am writing a program(VB) that involves an IFF statement where if there are records in the query it does a specific calculation & if there are no records returned in the query it does something else. Is this possible to achieve?
Thanks in advance:D
Cheers,
Karv
I am having an issue with a select query as I want one column to show the MAX and "00" value of the same Column. How do I go about having this task completed.
For example, the column has 00,01,02,03,04,05,*1,*2,*3,*4,*5 so I want a query that will return values of "00" and "05" on this example
00
05
Further example, this is what I have now
SELECT qryPR34_UNION.PR34001, qryPR34_UNION.PR34002, qryPR34_UNION.PR34003, qryPR34_UNION.PR34005,
qryPR34_UNION.PR34006, qryPR34_UNION.PR34007, qryPR34_UNION.PR34013, qryPR34_UNION.PR34014,
qryPR34_UNION.PR34098, qryPR34_UNION.PR34099, qryPR34_UNION.PR34100, qryPR34_UNION.PR34101
FROM qryPR34_UNION
WHERE (((qryPR34_UNION.PR34002)>"0") AND ((qryPR34_UNION.PR34003)>"0")
AND ((qryPR34_UNION.PR34006)<"0") AND ((qryPR34_UNION.PR34099)>0));
On the WHERE command, I need field PR34005 to give me the "00" value or the MAX value (on my example the result will have to give me records that have "00" and "05" value assigned on PR34005
I have a query which is a max sum of sales for several sales reps. (If that makes sense?)
Sales Rep, Total Sales
1, 100
2, 200
3, 500
4, 50
5, 150
I need to create a report which delivers the sales rep with the most sales and only that sales rep
e.g.
3,500
i have a query with an inputbox for numbers [Enter Number]..if i want the query to return multiple numbers how would i do this? so the user could have 3 5 and 8 to search for, currently the [enter number] allows them to search for one at a time.
View 1 Replies View RelatedHi all, I currently have 2 databases: a main current database (Main.mdb), and a secondary database (Working.mdb).
They are identical, except the working database has no data, just the existing tables, forms, etc. from the main database.
When I (or a programmer) makes changes to the forms and some underlying calculations, they are first made in the Working database.
After the changes are made, i delete all the data from the tables in the working database (data from testing, etc.). I will then copy all of the data from the tables in the Main Database over to the Working database, then rename the Working Database to the Main Database.
The only problem I'm having right now is that the primary key in one of the tables (ClientID) is an autonumber. When I paste the data into the Working Database, all the ClientID numbers change. Is there any way to keep the numbers the same as the Main database?
Thanks in advance!
I am new to access 2010. I need to change the primary key in a table ("stations", Primary key is "station number"), because future entries will result in double entries for this primary key.
I have another table ("species&stations") which has records of Species for each "station number".
So I created a new Primary key for the "stations" table, now called "species id", being a bit better in defining a unique station (as it contains the year and the species number, i.e. "451_2010")
Now the table "species&stations" references/(is in relationship with) the old primary key, identifying a station number for each record.
How do I get it to recognise the new primary key from the "stations" table, and keeping the records (over 1000...) with all there info.
Approach so far: I tried to create a new field in "species&stations", which should look up the new primary key from "stations" and then autofill the field. i did not manage this though
I attached a screenshot to make the relationships more clear!