Calculating Data Size Limits
Dec 27, 2006
I am trying to project how long it will take to reach the 2GB Access limit in a specific project.
My client downloads approx 250,000 records on a monthly basis. I've been provided w/ a sample Excel spreadsheet. I filled a spreadsheet w/ the max number of rows (65536 rows w/ 10 columns of data), and imported that into a new table in a new .mdb file. I copied the table 4 times, so I now have 4 tables of 65536 records each. Compacted before closing. Size was about 52MB. Assuming consistency, I calculate that the size limit would be reached in about 36 months.
262,000 records = 52 MB. 52 MB a month x 36 months = 1,872,000 MB.
Does my projection appear sound?
Thanks!
View Replies
ADVERTISEMENT
Sep 30, 2005
Hey guys,
Was wondering, what is the recommended maximum size for Access databases? I've heard that for very large databases that oracle is preferred. Would Access be appropriate for something on the scope of 5000 records of roughly 6 text and 2 number fields? Do people ever notice performance effects on databases of that size?
Also are there any ways to help reduce the size of the database? Do you recommend change the default field sizes where appropriate and would this have a noticeable effect on a database of this size? Any other suggestions to help keep the database manageable, and functioning?
I'm basically trying to figure out if there's much to worry about here, before I start importing my data. Thanks.
View 3 Replies
View Related
Apr 3, 2006
The BIG problem is this.
I need a basic string graph over time recieved from a cross tab query. The data points all come in fine, but the "strings" / lines connecting the points do not show up.
I believe the reason is because there are just too many records.
I culled the data down using a vba loop to only show 1 stop per minute. (BTW, is there a way to do this using only SQL?) I now show all record points, but still do not show the lines between points. Some of the lines show up, but the more data points on the graph there are, the less the lines show up, till only one or two show.
This is an Access limitation that I'm unsure of how to get around. This really shouldn't be an issue though, because Excel handles the graph just fine EVEN BEFORE the culling of the data down to access acceptable limits. And it shows the lines between each record as well.
Does anyone know of a resolution for this?
Kelemit
View 4 Replies
View Related
Apr 27, 2007
How many nested iifs can access handle in a query..
View 2 Replies
View Related
Feb 20, 2005
ok i have a invoice form with Subform. Pesently i am doing somthing like this.
Ihave placed a code on the OnEnter event of the subform as such,
If isnull (Me.CustomerId) or me.CustomerID = "" then
msgbox "Please Enter A Valid Customer ID",vbokonly,"Customer ID Needed"
me.customerID.Setfocus
End if
Now what i want is to ammend this code so that before entering inthe Invoice subform the code should check that CustoemrId, CustomerName and Employee Name is not blank. There should be some data in them. How can i make the code checks for the three textboxes instead of one.
View 1 Replies
View Related
Dec 5, 2005
I have been creating a personal database (access 2002) to keep help keep track of all the stupid things I own. I was wondering what people think about encoding data to help reduce database size. I know that for my small database it probably doesnt matter, but it it worth it to enocde colors into a couple of characters (2) instead of having a text entry that could fit a color spelled out (15). Ex.
Gray vs. G
Dark Gray vs. DG
Black vs. B
Blue vs. BL
etc.
I have come across a number of times when I can encode data and then write code for my forms to interperet that data back to plain english for me. Am I just wasting time if I do this? Or is there a point where this is recommended? Thanks for your advice.
View 2 Replies
View Related
Feb 9, 2006
One of my tables contains data/records like this: 02092006P1235665
Does anyone know how I would write a query to return only the first 8 characters from these records, not the entire field.
For simplicity lets call the table RECEIPTS and the field RECEIPT_NUMBER
View 3 Replies
View Related
Mar 22, 2005
Hey buddays,
I have a form with a bunch of Count totals in the footer.
There are 12 different areas with a number of projects in each area. So, I'm counting the total projects, and then I'm counting the instances of an area in the area column...12 times. In the query, I have 12 different Count fields, and in the footer of the form, I have Sum([Count]) for each area and one normal Count field for Total Projects. It works fine, until I have about 11 or more text boxes summing counts. Then I get #Error for all of them.
What's the magic Access limit for form-based functions like this? What's a better/faster/sleeker way of doing this?
View 9 Replies
View Related
Aug 29, 2005
Will keeping your field size shorter result in a smaller MDB file?
Or does Access only use as much space as there is real data in its fields.
Way back in the dBASE III days, dBASE would pad all your "real" information with as many spaces as necessary to fill up your field. I suspect that the MDB structure is probably smarter than that.
Another question on the same topic - I believe there is a maximum number of characters in a record (4000?). Can your field sizes add up to more than 4000, as long as the actual data, all combined, never totals 4000...?
Thanks............
..dc
View 3 Replies
View Related
Aug 9, 2007
Dear Access Expert.
I have a choice of either calculating a field or storing it.
Specifically, I have two pieces of data ... departure time and arrival time which I have taken from another source. This other source also has the difference between these times. Currently, I am not storing the difference in a field as I have opted to calculate it in my database.
However, I am thinking that maybe it would be better to store it vs. calculating it because I have 35, 000 records and storage space is not going to be an issue.
What do you suggest if I my main concern is speed and effeciency?
Thank you very much.
View 6 Replies
View Related
Nov 10, 2006
I have a file that collects the time data of the shop employees. It records time in (start of day), time out (lunch start), time in (lunch end) and time out (end of day).
Sample of the table:
In/OutEmployee IDDateTime
0316 11/2/20067:00:34 AM
01244 11/2/20067:05:00 AM
1316 11/2/200612:00:43 PM
11244 11/2/200612:01:21 PM
0316 11/2/200612:30:43 PM
01244 11/2/200612:34:25 PM
1316 11/2/20063:30:46 PM
11244 11/2/20063:34:34 PM
0 = In, 1 = Out
How can I calculate the total hours worked per day(First In + First Out + (Second In + Second Out).
I appreciate any help.
View 6 Replies
View Related
Jul 23, 2006
Hello,
Firstly I would like to state that i have very little knowledge of Access databases (my job is not computer related) but I am trying my best to get a few issues sorted...
So here it goes: I have 2 tables, one large table with about 3-4000 rows(horizontal lines), and a smaller table with only about 1000 rows.
The rows in the big table contain Products (name, dates, adresses, phone numbers etc) and every product has a 'Codename' in a column-line (vertical)
of the big table. (there are about 3000-4000 products)
In the small table there exists a similar column-line (vertical) that contains 'Codenames' of the Products listed in the big table, but there are only ~ 1000 'Codenames' not the full 4000 ! The reason for this is that in the small table there exists another column-line(vertical) that for every code listed (in the small table) contains a certain specific "description".
My task is to get all the 1000 "descriptions" from the small table inserted into the Big table accordingly to their proper 'Codename'. This means createing a new column in the big table and: if the codename exists in small-table insert the description in the new column-cell, if the codename doesnt exist in small-table leave new-cell empty...
How do i do this ? :) Im guessing some coding is envolved.. and i have no clue whatsoever....
Thank you,
George P.
View 2 Replies
View Related
Sep 29, 2006
I have a main form with a few imbedded sub forms.
Sometimes these is a great deal of data in one of the sub forms & non in the others.
Is there a way that the sub forms can grow depending on the amount of data there is in each particular sub form. (The sub form grows for a lot of data & shrinks for little data)
The way I have it now is that each sub form is always the same size and a scroll bar appears when these is extra data. This is OK but I need to see all data in sub forms at once if possible.
Can anyone help with ideas please?
View 2 Replies
View Related
Oct 15, 2005
I want to distribute an app that provides password access for a 6 month period after which time a new password has to be issued by me to the end user for them to continue. This means that I don't lose control of the programme.
Is this possible or are then other ideas to protect the app - I have looked at upsizing to MySQL but it is way beyond me, also I have looked at splitting the app and putting the back end on FTP - but apparently this doesn't work (albeit a good idea as I don't need any other programming skills). Any solution needs to be fairly simple please.
View 5 Replies
View Related
Apr 8, 2008
Hey guys, I asked a question before but not sure it's the right place and was difficult to explain anyway so I'll just upload my stuff here.
Basically its a school assignment that's making me so frustrated. progress was fast with tables and forms and reports but there are a few requirements i just dont KNOW how to do, not sure what to search for it the way of google either so it's making life hard.
so requirements are:
Gold memebers can book a max 7 classes, silver 4 and bronze 2.
Members cannot book 2 classes on the same day
Classes cannot be over booked.
must make in some form or other something that displays how many classes taken and how many classes are left to each member.
I know all this stuff probably falls under some very simple functions that I'm just not using correctly or have no idea exist but I've made no progess in days and it's such a horrible feeling!
Please any help! I'm not asking you to complete my assignment I'm just asking you to shine the light my way!
ps, no code please, we havent got to that stage yet.
thanx in advance,
Joe
View 2 Replies
View Related
Mar 13, 2007
I have two queries combined into one query. The first query shows a sales summary by part number. No problem so far. The second query shows inventory by part number. No problem with that.
Now, I combine the queries, and get only those results that appear in BOTH queries. In other words, if there is no inventory, I do not get zero in the inventory column, the entire result for that part number is skipped.
How do I still display the results of the first query if there is no match in the second query?
View 9 Replies
View Related
Sep 8, 2004
Hi
I've happily been working with my new switchboard only to find it tells me I am limited to 8 entries. How does one get round this - create switchboards which link to switchboards, different pages of switchboard...I've got a bit lost and would much aprreciate any advice.
Thanks
View 5 Replies
View Related
Dec 7, 2007
Morning all,
I'm having a problem with mdb file size. I'm importing a large amount of data from a number of tab delimited text files via a simple transfertext function. The process goes: empty the tables in the database, then import the data into the tables.
All this works fine, but the file size rockets to over 1.5Gb. When I then compact and repair, it goes down to 420Mb. I'm not deleting and recreating the tables, and at no point is there 1.5Gb worth of real data, so what's causing this?
N.B. I realise I can call compact and repair following the import, but this is going to take too long as they are user-initiated imports.
View 4 Replies
View Related
Oct 3, 2013
I have now a report that span around 2 pages. It has subreports in the report that depening how many rows there are they can grow or shrink.I have the problem that the second page the top margin is to close to the top of the pager. The paper has a logo on the right top side. I can make the first page look nice under the logo, but the second page prints to close to the edge that prints over the logo. I did add a page break, but when the page 1 has more data, it flushes this to the next page. The page 2 is now page 3. How can I avoid that, or make it so that the margin of the second page/next page is on the correct lenght of the top. I tried it with the page setup, but it does not work.
View 3 Replies
View Related
Mar 30, 2006
I am a very new access 2003 user and would welcome advice on how to cause the parameter text within [xxxxx...etc]to occupy two lines ( i.e force a carriage return and line feed) and thereby reduce the width of the parameter input box that the user sees. Also are there limits to the number of characters that can be used. I seem to remember a figure of 50 but cannot find it again in any of the books I have.
Many Thanks
Gerry
View 3 Replies
View Related
Aug 18, 2013
Why is my query limiting itself to only 16 columns? when I tab right for another field, it jumps back to the first field. I have other queries with far more columns than that. My DB size is 3,400 kb.
View 3 Replies
View Related
Jun 27, 2014
I have a textbox called Odours, there are four buttons below the textbox btn_Cadaver, btn_Drugs, btn_Explosives and btn_Money.
On licking one of the buttons a value will be put in he textbox i.e. pressing the btn_Cadaver will put the value "Cadaver ()" in the textbox.
The reason I want this is that all of the entries must begin with either Cadaver, Drugs, Explosives or Money. The brackets are there to allow the user to put some free text between the brackets.
I have some code to set the cursor (on click) between the brackets
Code:
Me.Breed.SelStart = 9
I want to prevent the user from typing anywhere in the textbox except between the brackets.
View 3 Replies
View Related
Dec 13, 2013
I will try and keep this brief. I have a paragraph of text, I have to paste it into a system which allows me 75 characters in a line and 208 in a page.
I have code which creates text boxes dynamically based on the total amount of characters/208 - this gives me how many textboxes need creating. I also have code which then populates those textboxes 208 characters at a time. I now need to alter it so it puts a line break every 75 characters.
Code:
Private Sub btnsubmit_Click()
DoCmd.OpenForm "NoteForm", acDesign
Dim x As Integer
Dim ctrl As Control
Dim y As Integer
[Code] ....
So I've achieved almost what I want, I just need to amend it so it starts a new line after every 75 characters...
View 1 Replies
View Related
Feb 26, 2013
The column in my list-box did not show all the text i save in the table field. is there any limited size for list-box's column to show the data ?
View 2 Replies
View Related
Jul 9, 2013
I have subform (Datasheet) is there some code e.g. after update, which can adjust size cell to lenght of data?
View 11 Replies
View Related
Dec 20, 2003
Hi
I'm new to forum and can't find an answer to this problem. I am using Access 2002 and have a memo field in a form that I want people to be able to type in as much text as they want. This is then displayed in a report. The form accepts the text with no problems however when I view it in the report it has been cut to 255 characters as if it is a text box. I have set the properties to 'can grow' to no avail. I have searched the MS Knowledge base for a solution with no luck. I admit I'm not an expert in Access and would really appreciate some help as I have been trying to overcome this problem for days.
View 2 Replies
View Related
