I would like to know if there is a maximum nb of columns to use in a table or at least a prefered max nb. For example i have a table "customers" and inside i have "name" "last name" "age" "gender"..and so on is there a limit?
By the way i'm using access 2007
Thx for the explanation in advance.
hi there
how many columns is the maximum in a query?, because i have one that has 26 columns , but i need some more... what can i do?? is there a way to add some empty columns to a query??
thanks
I understand that the maximum file size for an Access db is 2GB but can you essentially have as many fields as you like as long as you do not exceed the 2GB threshold?
I am doing some planning for creating a database with ~90 fields and want to know before I start it whether it will be able to handle that many.
Can anyone please tell me the maximum number of records a table can accomodate? Also what happens if the number of records exceeds this maximim value? Awaiting reply
View 2 Replies View RelatedI have run into a problem with an ODBC table connection. The table I am connected to exceeds the number of fields allowed in an Access table. I am using Access 2003. When I looked on Microsoft help site I think the max number of fields in a recordset is 242 so I am unable to see all of the fields in the original table I am linking to. Does anyone know if this limitation has changed in the newest version of Access? I checked the Filemaker www site and that program does not have the same limitations. Thanks in advance for any help!
View 4 Replies View RelatedHello there.
Is it better to have many fields in one table or to split the data between a number of tables and link them?
Thanks.
# gingette
I have a problem in doing a task with my form. Actually I have a button to add a new record which opens a new form there i enter the values to the record. But when I press the Addnew record button I want to calculate the maximum of the Identity field +1 and open the new form with that new number which i have calculated. How can i do this....
View 1 Replies View RelatedI have three tables that contain different columns but linked by a primary column call Name. I want to create a table where all these different columns in the three tables join to form a master table which can be updated regularly either through the master table or the smaller tables. The master table also has the primary column as Name.
If I update the master table with records, it should update the respective linked table and vice versa. I also want to link these tables to my SharePoint site.
Note: except the Name column, none of these tables have any other columns in common How do I go about this?
Hello
I have two tables tblCList and tblCode. The primary key of tblClist is an autogenerated number which is the foreign key to the tblCode.
The tblCList has another column names sClist.
whenever I import values from Excel into the tblCode, I need Access to look up the text values from the sClist in the tblClist and insert the appropriate number corresponding to the entry in tblCode.
Please Help
Thanks
Is it possible for the primary key of one table to act as the foreign key in another table for more than one columns? What I'm trying to do is create a table for a Committee which will have 1 student and 5 professors! So Can I import the faculty ID for each of the 5 faculty members?When I try creating the second relationship, access automatically creates a new Faculty table for the relationship!
View 6 Replies View RelatedHello.
Here's some background on what I'm trying to do. I am building a database that will hold data on 31 parks. Each park will contain many advertisers and each advertiser may be in one or many parks. Theres more to this but i will just stick to what I am having trouble with.
The tables i have made thus far pertaining to my question are:
1. "Parks" table. It has two cols one for ParkID (key) and ParkName
2. "Advertisers" table. It has 9 cols for things such as AdvertiserID (key), addresss, etc...
3. "AdsData" table. This is the problem table. It contains AdID (key) and ad content columns (copy, names, driving directions, etc...). In addition to the ad content however, I need each ad to indicate which of the 31 parks it is located in (one or many) and which of the 16 park activities (things like hiking, swimming...i have another table for these) it is to appear in (one or many).
The only solution I have been able to come up with is to make a table ("AdsData") with 55 columns in it. In addition to the ad content data for each ad, there are 16 yes/no columns for selecting one or more activities for the ad to appear in and 31 yes/no columns for selecting one or more parks for the ad to appear in.
This seems excessive because I have a table with all the Parks in it and I have a table with all the Activities in it. Plus I've been told that having so many columns in a table is a bad, bad thing.
But in my limited knowledge of Access, this is the only solution I can come up with.
Is this the only way to do this?
I have a Table where the are several entries all with Fields A, B and C
the same, and varying values for Field D.
There are several different values of A, B and C.
I want have a query, pick out each combination of A, B and C and just the
Max value of D for that combination.
It looks as if it should be simple but I can't figure out how to do it?
Anybody able to help?
Hi to all;
I am not familiar with access function, in Excel its very easy to find the max value at row level, what's the formula in access query to get the max of this example
Co1co2 co3….co60max(co1:co60)
200150300 500 ?
212542321 222 ?
thanks in advance for respond
Majed
Hi all!
First of all sorry for my terrible English! ;)
I have a very simple question (I think). I have a table with 2 columns in it, filled with city names and their id's. For example:
city - id
rotterdam - rd
amsterdam - ad
new york - ny
london - ld
I have a form with this city-table as a dropdown menu to fill in the control. What i now want is, when I select the city, a different text field named ID must be filled in with the corresponsding city-id.
So, how do I fill in 1 field when a edit the 2nd field?
Thnx in advance!!
Hi all!
First of all sorry for my terrible English! ;)
I have a very simple question (I think). I have a table with 2 columns in it, filled with city names and their id's. For example:
city - id
rotterdam - rd
amsterdam - ad
new york - ny
london - ld
I have a form with this city-table as a dropdown menu to fill in the control. What i now want is, when I select the city, a different text field named ID must be filled in with the corresponsding city-id.
So, how do I fill in 1 field when a edit the 2nd field?
Thnx in advance!!
I have this statement that doesn't work...
UPDATE table1 SET table1.val1 = [table2].[val2]+[table2].[val3];
How can i add two columns of the same table and update my query?
Thank you in advance!
I was able to use the UNION ALL qry. But, when I have another file (like original2) that does NOT have all the columns listed in the UNION ALL qry, I get a Parameter value box asking for the missing columns when I run the qry.
Example:
original1IDDateGroupChristianJohnnySteve 18/5/2013A1528/5/2013B338/5/2013C2348/5/2013D2358/5/2013E5
original 2IDDateGroupChristianJohnny18/6/2013A212528/6/2013B2338/6/2013C2248/6/2013D22
The UNION ALL qry includes all the possible resources ( includes all the possible column fields Christan, Johnny, and Steve).
When I run the UNION ALL qry with the original2 file, An "Enter Parameter Value" box is displayed with the mssing column name "Steve".
Is there a way to Map the original2 table into a working table with all the columns, or use VBA code to construct the UNION ALL qry to only include the existing columns? My data has variable columns and I'm trying to avoid the parameter popups.
Hi all
I have an expression in a query which is checking a list box on a form. If the list box is empty (is null), then I would like the query to search on the highest (maximum) value in the specified field (CourseFK), otherwise it will look for the value in the list box.
Expr1: IIf([Forms]![frmEditDeleteStudentDetails]![lstEditCourseFK] Is Null,[CourseFK]=Max([CourseFK]),[CourseFK]=[Forms]![frmEditDeleteStudentDetails]![lstEditCourseFK])
However it seems Access will not allow me to do this - I get an error about an aggregate function in a where clause.
Can someone please suggest to me how to get around this? Eg, is there an alternative way to search for the maximum (still needs to be determined dependant on the list box).
Thanks
Hi,
Can some1 tell me how to create a query that shows me the ProcessID for max time and date (date and time are in separate fields) for every PersonID. I need to run a query once in 5 minutes to check the job that every person is doing. They are entering the processID every time they get a new work to do.
How do you find the maximum of four fields in each record of a query. Say (for example) you have daily records of the rainfall across four cities, where the cities are the fields in the query. how do you write an extra calculated field to the query that shows the max. rainfall across the fields on a paticular day.
Many thanks if you can help
Nifty
I am a beginner and have a very basic query. I would like to create a field which returns the maximum value across a number of fields for each record. Is there a function that would do this?
To explain in more detail, each record is a customer and the fields are their purchases by month. I would like to get the maximum monthly purchase amount for each customer over the past year.
I have created a Table Design
Name
Last Name
ID Number
NameID
I import data from CSV xls file which has Columns of Name, Last Name, ID Number.
What I want to achieve is while importing it should Concatenate Name and ID number and store in Name ID.
I have searched it well but havent been able to find solution. Any suggestion how to achieve this.
Thanks
NIRI
In the tutorial listed here: [URL]....
It states after opening the database in Datasheet view :
In the Navigation pane, double-click the table in which you want to create the lookup column - this opens the table in datasheet view.
On the Datasheet tab, in the Fields & Columns group, click the lookup column.
And it show you some icons.
I have a table in Access with 184,000 rows or records of data and 20 columns or field names. When looking at the table ten of the columns represent the identifying information for the data stored in the other ten columns. I need to convert the last ten columns of data into one column with a second column added to identify the original field name. Then end result would be one current record of data being converted into ten records with the original 10 columns of identifying data, a new column containing the original field name and a column for the data value from the original column identified in the new column.
I have been able to do this in Excel using a consolidation pivot table, un-checking the rows and columns then clicking on the final sum value to get a detailed list of the records. Unfortunately there still appears to be a cap because I get a message saying some of the data has been dropped after a little over a million rows.
I am using the 2010 version of Access and Excel.This is the smaller table. I have several others that have up to 200 columns that need to be converted the same way.
Rows to columns;
I have a table with three fields
ID,Desc,Code
1,aaa,code1
2,bbb,code2
3. aaa,code3
4, bbb,code4
I need a query creating these two columns:
Desc,Code
aaa,code1;code3
bbb,code2;code4
how can I do this?
Hi,
we use access for localisation in our application. The business object which accessess the access uses DAO connectivity and we often land to
"Too many client tasks" problem.
is it wise to change the DAO to ADO? if so the above problem will go off?
what are the chances that the problem still persists?
is that access has any limits on the number of connections? like 64, 255? or is that ADO/DAO has any limitaions on the number of concurrent connections to access DB?
Pls help, your help will be highly appreciated.
Thanks,
Venkat.