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 RepliesI have built a login form that works fine currently with the exception of login attempts. The current features are
1) Checks login is in users table.
2) Ensures the user status is not blocked in the table.
3) Sends the user to the correct page based on their authorisation in the user table.
What i need to do now is
1) Allow the user to enter the incorrect password 3 times and on the 4th time it will say "Too many login attempts. Your user access has been blocked."
2) Update their status as blocked in the users table.
My Current code is below.
Private Sub LoginButton_Click()
Dim Useraccess As String
Dim Userstatus As String
If IsNull(Me.LoginUsernameText) Then
MsgBox "Please Enter Username", vbInformation, "Username Required"
Me.LoginUsernameText.SetFocus
[Code] ....
I have tried 6 different codes to try and add this and i cant get any of them to work.
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?
We have a database where we are trying to limit the amount of data that users need to input.
We have a form, which contains order information. Where a customer has specific requirements, we add those requirements to a separate document review table MasterSpecification and DetailedSpecification.
When a customer has specific requirements, we can open the frmMasterSpecification and search for the document.
Assuming a review has been done the requirements will be shown on the subform Frmsubcoverage. I would like to be able to select the record source from this form and have the details entered into our order entry form.
Under the specification form there could be many sub coverage records depending on the type of item ordered to that specification.
I have One table(and designed form from it) in which i have recording the daily transactions(it is like a daily book). Daily transactions took place like Purchase of items of Amount 45, sale=70, sold on account=100 etc.
What problem i am facing is: I would like to Add Cash In Hand amount and would like to show it on my form. When day end I would like to move remaining cash In Hand on separate column of that date. The next day i would like to take the previous Remaining Cash in Hand as Cash In Hand at Start for next date and so on.
I am trying to make a report in which I can see the amount of money that I have to pay weekly to an employee. To explain myself clearer, I have different rates for each employee. For example:
NameNormalPayRateVacationPayRateSickPayRateOvertimePayRateStandbyPayRate
John Smith$15$10$15$30$8
Ken Jonson$10$8$10$20$8
I am doing this in a query. So what I want to be able to do is, for example, take 4 hours that the employee worked at NormalPayRate and multiply it. But if tomorrow the employee worked at a different rate, for example 3 hours overtime, I want those 3 hours multiplied by OvertimePayRate.
The way I saw it on my Google researches, is that they have only one rate and the amount will be [SumOfHours]*[Rate]. But how can I tell my query to skip, for example, one rate because the employee didn't work at that rate that day. So I can have different amount for the different rates.
By the way, entering the information I can divide at what rate the employee worked x day. So if the employee work 6 hours at regular, and later on 4 hours at standby, I have those information separated in my table.
Results that I am getting: I can easily get the amount in money multiplying the whole hours by a rate, so my result in my report will be multiplied by the same rate.
I am using Access 2013 ...
Hi,
I have a table of users somthing like this:
User_ID
Name
Hobby
Favorite_Food
Blah
Blah
Blah
Users can be friends with one another and I need some way of logging this.
My 2 options (that i can see) are:
1) Putting a friends entry in the main user table then comma delimiting the User_ID's in the friend entry like so:
User_ID: 001
Name: John
Hobby: Frizbee
Favorite_Food: Cake
Friends: 002,004,010
2) Making a seperate table with multiple entries for each user like so:
User: 001
Friend 002
---
User: 001
Friend: 004
---
User: 001
Friend: 010
---
User: 002
Friend: 001
---
User: 004
Friend: 001
---
User: 010
Friend: 001
---
The database has to be handled by a web service and/or a web appliction making the comma delimited option occupy more server time breaking down the string into usable user_ID's.
But (and this is probably my actual problem) if i was to impliment my second idea, I'm not sure what I should make the tables primary key or the best way to relate it to the main user table.
My initial thought is to just have a, technicaly useless, ID be the primary key and impliment a one(User) to many(friends entries) relationship... but im a bit of an access n00b so thought i better come ask for some advice.
Thanks.
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
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.
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.
hi 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
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!
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.
My issue:
Does anyone know the maximum number of (one to one) relationships with cascading deletes a table can have?
Background:
I have a split database peer-to-peer application with ten simultaneous users, 250+ linked tables running on A2K, AXP and A03. MSDE and SQL Server are presently not viable options.
I'm unable to manually or programmatically relate one table to 73 others with referential cascade deletes; some of the 73 are related to still other tables. The one table is used as a recordsource on a subform on each of 73 different main forms, each of the latter having a different recordsource.
In other words, I want to delete a record in any of 73 different main forms, each with a unique table recordsource, and then cascade delete a subform record (which has the same table recordsource, regardless of the main form).
If I combined the 73 into a single table, I'd have a monster record with 500+ fields, assuming the latter is even possible, and in which event perfomance would suffer from excessive network traffic.
What I've tried:
I haven't worked this issue for some time and have forgotten the number of relationships for a single table I've been able to create. As I recall, it's on the order of 20 relationships maximum for one table.
Of course, I can do it programmatically delete the subform record on the OnDelete event of the main form, but, for elegance, I'd like to use a cascade delete.
Peer-to-peer network performance is not presently a problem.
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.
My quiery is supposed to search through a table of names, and find the latest timesheet entry date for each name, as follows:
ID: 1
Name: John
Timesheetdate: 1/1/2005
ID is specific to each name.
I want the result to be a single row for each ID/name, and to return ONLY the latest timesheetdate (this could either be the maximum value or the latest entry).
I have a feeling that this is a simple problem, but i just dont have the knowledge to do it, any help would be greatly appreciated!
Can someone tell me what the maximum amount of fields that you can have in a query is please?
View 1 Replies View RelatedWhat is the maximum no. of characters allowed in a combobox?
View 5 Replies View RelatedI 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
I need to create a query that will return for the latest document, the greatest document number. If I do select max(doc_date), max(doc_nbr), I end up getting the max doc_nbr, but it has an earlier doc date. How would I structure the query to do this?
An example is for these values:
1/30 1
1/30 3
1/30 5
2/28 2
2/28 4
The result should be:
2/28 4
I will then need to see if this returned value is different than the value that was returned the day before, but I am pretty sure I know how to do that.
Thanks,
David
Hi
What is the maximum number of users who can be connected to one single database at one time? Is there a web site that has info on this?
Thanx for the info
Hi!
I have a database with a lot of chemical data. My ASP page allows the user to search out all data from a specific location during a specific time period. It then creates a normal html table with the results.
The problem is when I have a large time period and a lot of parameters. For example: data from location 1, 1959 to 2005 returns a HTTP 500 error. When using "on error resume" only the code and data from the last three years are printed (all html tags etc missing from the beginning of the page).
When I choose the period 1959-2002 it works, and also if I use 1970-2005 (which shows that it's not corrupt data in the 2003 year).
My question is: is there a size limit for a recordset? If so, how do I solve this? If not, what could be my problem? Size limit of html pages?
Thanks
Martin