I know that tables have a max of 255 fields. How many can you add to a query?
I have a large database that is divided into several tables. When building the query to select all the data I will be way over 255.
Will this be an issue?
Thx!
Can someone tell me what the maximum amount of fields that you can have in a query is please?
View 1 Replies View RelatedI 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 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.
I 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
We have a database in Access 97 which is 0.8GB.
Can anyone tell me:
a) The maximum storage capacity.
b) What will happen when it reaches that size!
Hai all,
Let me know the maximum capacity of access database..how many tables can include in the database..is their any limitations?
Example: 2GB, 3GB Like Thir any Limitaions of the Capacity of Database
Any one Help
Thanks & Regards
Narasareddy
I know that Access probably permits around 20 or so users to simultaneously access the database before it start to become unfriendly. However, I have a database that would require 200 or so users grabbing around 1,000 rows of data via an Excel ADO connection to the backend tables.
So they would never need to physically go inside the Access database its self, but instead it would garb data by opening an ADO connection to the database > Grabbing the data > Closing the database connection.
Is this okay to do with around 200 users simultaneously querying the database tables via an Excel ADO connection?
I have a database of song track data with track length as a field.
I want to produce play lists up to specific lengths e.g 15 minutes and just want the query to show me enough songs to fill up this time period.
Any help appreciated - especially simple solutions!
Jim
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
Can someone help me out on this:
I have a table 'articles'
ID --- date --- authorID
1 --- 20060901 --- 1
2 --- 20060902 --- 1
3 --- 20060903 --- 3
4 --- 20060904 --- 3
5 --- 20060905 --- 2
I need a query that will produce the records that have maximum date for each author (distinct authors), ordered by date descending.
For example, output should be in this case:
5 --- 20060905 --- 2
4 --- 20060904 --- 3
2 --- 20060902 --- 1
Hope that you understand what I mean...
Please help!
I need to know about "Need to query result from access2007 find only "one maximum number" in hour per day every cell ID"
How I use sql command?
See my file at ...
I am at the last phase of producing an extensive analysis report. The last calculation I need to the query QryCom_CalculationFinal gives me the "Too many fields defined" error. I have verified that "Ps_Score" calculation push the system into overload, as QryComp_CalculationFinalPrt01 without this calculation works fine.
View 7 Replies View RelatedDear sir/madam
I have two tables linked together with one-one relationship with primary key.
The form has been created using a select query using these two tables. total fields at present is 253(table1=25 fields, Table2=228 fields Total = 253 fields)
Now my problem is I have to add 20 fields more to the above. so the total fields now is 273 fields but it is not accepting and giving the error as "Too many keys defined 3190".
how to solve these problem
Thanks in anticipation
L.Ranganathan
Hi,
My database has 4 tables. Table 1 is assembly line 1 data. Table 2 is the sizes for assembly line 1. Table 3 is assembly line 3 data. Table 4 is the sizes for assembly line 2.
The table data comes from another program - they are reimported regularly and so I cannot change, add or delete fields from these 4 tables.
I have to change tables 2 and 4 to crosstab queries and then create 2 queries that join 1+2, 3+4. That's easy enough, no problem.
But then I have to UNION queries 1+2. While 95% of the fields are the same, the most crucial are not - the sizes. Assembly line 1 has 5 less sizes than assembly line 2. I need ALL of the sizes to show in the combined query.
I need to add these 5 fields without adding them to the tables. I did manage to create a crosstab query that included the missing sizes, but now I have a 1 in those fields where I need a NULL or Zero value.
Does that make sense? Can anybody help me?
Thanks in advance.
Rhet
Hi everyone...
I'm a high school student working on an Access project for a summer internship. I needed your assistance in writing a criteria for a select query.
Table1 has the following fields:
ID, First_Name, Last_Name, Org, Email, Status
Only "Email" is mandatory, ID is autonumber, the rest are optional.
I have to create a query that will allow users to search the table with any of the fields above. A user may search with only one field, e.g. all users where "org" = "YMCA"
Presently, I am using the similar criteria for all the fields:
Like "*" & [Forms]![Search]![txt_FirstName] & "*"
The problem occurs when, for example a record exists with the following -
First_Name = Null or Blank
Last_Name = "Smith"
If you search for "Smith" in Last_Name, then the record does not show up, because First_Name in the record is blank.
How can I alter the criteria for it do search correctly?
I already tried:
Like "*" & [Forms]![Search]![txt_FirstName] & "*" & ""
Thanks,
Gautam
Hi everyone...
I'm a high school student working on an Access project for a summer internship. I needed your assistance in writing a criteria for a select query.
Table1 has the following fields:
ID, First_Name, Last_Name, Org, Email, Status
Only "Email" is mandatory, ID is autonumber, the rest are optional.
I have to create a query that will allow users to search the table with any of the fields above. A user may search with only one field, e.g. all users where "org" = "YMCA"
Presently, I am using the similar criteria for all the fields:
Like "*" & [Forms]![Search]![txt_FirstName] & "*"
The problem occurs when, for example a record exists with the following -
First_Name = Null or Blank
Last_Name = "Smith"
If you search for "Smith" in Last_Name, then the record does not show up, because First_Name in the record is blank.
How can I alter the criteria for it do search correctly?
I already tried:
Like "*" & [Forms]![Search]![txt_FirstName] & "*" & ""
Thanks,
Gautam
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
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
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.
How many users can an access database support? I'm setting up an app accross 3 workstations but each has multiple users. There may be as many as 1000 records a day entered. Can an access database handle this or do I need to switch to sql server?
View 6 Replies View Relatedhi all,
This is general question only. How many number of records that Access can handle as a maximum records?
Or it only depend on size limit (4GB)???
thanks