Storage Length Of Field

Apr 2, 2008

Hi everyone,

I am using a table that stores data and one of the fields is just a text field with a maximum length of 10.

However, when I store the data in the field, if I only enter 5 letters in it, it stores the 5 letter word correctly but followed by some spaces (I assume 5 spaces but I may be wrong.

I cannot figure out why does anyone know why?

If not, then can I trim the field if I use it in a query/report?

Thanks.
Gareth.

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Field Data Storage

Aug 30, 2007

I found this page (http://support.microsoft.com/kb/824263) as a pretty good reference for field data types, but there's some things I still want to know.


What's the per-character storage on a Memo and Hyperlink field (ignoring compression)?
Are AutoNumber types (Long, Replication ID) unsigned?
Do null [non-text] fields still use their full capacity?

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Jul 17, 2005

Um, well hi

I am a VB programmer, and need a database for a diary program i am making. Only i need more then 255 characters in one of my fields.

Is this possible, if not, what are my options.

Thank you
ILMV

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Mar 12, 2007

Hi,

I'm looking for some advice on what the maximum field length is in Access. Which option will provide the maximum length. I am wanting the field to capture both numbers and text.

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Thanks in Advance.

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Mar 26, 2007

Hello,

If I read the documentation then memo field in a Access table can be 65.000 chars long.
I have three memo fields in a linked ODBC table which is filled by a append query from SQL-server database. The text in these field is cut off by 255 chars.
Does somebody know what the cause of this can be?

1. Is there a limitation/property where I can configure the length of Access memo field? DAO? I have read something about this but I don't understand this.

2. How can I trace that everything is send from the source? Maybe it's cut off at the source site. On this moment I don't know something about a Linked tabel.
Is there a sniffer or trace tool so that I can see what kind of data is realy send?

Thanks in advance

Nico

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Mar 12, 2008

I know zero about Access and am posting this for another organization. When exporting to cvs, one of the fields is not exporting the entire text. It's a text-only field with about 300 characters. Is there a limit? Seems they had had this problem in the past, but fixed it. Can't find the solution again. Help and thanks!

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Sep 29, 2011

I have a column in my table, and its size is set to 10 characters. In a form, i have a combobox based on that column, which contains the values "Corrective", "Preventive", and "Supplier". both Corrective and Preventive are 10 characters, and fill up the field to its max, however, Supplier is only 8 characters. When I look back in the table data, there are two spaces after Supplier. Basically, I can use the arrow keys to "see" the two blank character spaces. Why is that? Are these extra blank spaces taking up space they shouldn't?

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Feb 6, 2006

I am trying to change a field lenght of a large database (access 97) It is at 50 right now and want to change it to 25. When I try to change it and save the table I get a error when the bar is about 3/4 the way accross the bottom.

Microsoft can't change the data type - there isn't enough disk space or memory.

then

not enough space on temporary disk

This is error 3183. In the help it says that the TEMP DOS enviroment variable location doesn't have enough space. (summerising). Now I have a 100+gb drive that isn't close to being full. I also changed the MaxLocksPerFile registry dword to 8,000,000 as my table has around over 3 million records. I have tried this on a xp and 2000 machine same results. Next I am going to try it on a 98 machine. I could do it by breaking up the table into 2 differnt ones and do each one individually but there is an autonumber field used as a reference number (I know I know). So that would screw up the numbering scheem (Yes I know there are ways arund that also). this database is about 400MB

Couple of questions
1. Is there a way around this? I have not found a solution on line yet.
2. Will lowering the field length make the database smaller (the data that is in there now is less than 25 charecters and the field is set to 50.) I have gotten mixed info on this. there are a few fields I would like to reduce.

Thanks
sam

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Jul 12, 2007

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I have 2 fields in a query which I want to write to a table. Eg ProductName (field length 10) and Product Code (field length 5) the fields need to be filled out so the length makes the maximum text

For example product name 'test' length is 4 i have to add 0 to make the length to 10 so the field will be 000000test same thing applies to Product code. I have 700 records like this, is there a way in VBA where it adds the extra text to make it the maximum length.

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Jul 29, 2015

I have a table that stores ID,PolicyNumber,NewPolNo fields.It has millions of records. The field NewPolNo is empty. I need vba code that will check the following for each record:

1. If the length of the PolicyNumber is over 14 characters long then store that PolicyNumber value in NewPolNo field.

2. If the length of the PolicyNumber is less than 14 characters long thenagain store that PolicyNumber value in NewPolNo field.

3. But if the length of the policyNumber equals to 14 digits long then check the following:

a) If the last 7 digits are 0's of that PolicyNumber. If yes then store first 7 digits in NewPolNo field.
b) If the last 7 digits are not 0's then store the whole PolicyNumber value in NewPolNo field.

We need to check these conditions for each record of the table.

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May 2, 2014

Is there any way to force a field value to be unique and of a set length, but with exceptions?

Let me explain... I have a text field in my table called "employee_number" and this value is always one of the following:

NULL
an 8-digit number
the word "External"

What I want to do is to force that field to either be NULL, the word "External", or a unique 8-digit number.

Is this possible? Obviously I can't set the source field in SQL to accept unique values only but I wondered if there was any way around it at form level?

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Jul 8, 2013

I have a database that is used for tracking changes to numerous courses. Part of this database create a unique tracking number for each course problem developed. Currently I have the form do a comparison using the highest most number to compare against the current number assigned and prevent the form from saving until the number is incremented and not a duplicate, it would be a lot easier if I could just have it increment plus 1. I have seen various answers but they all seem to depend on the alpha portion of the field being a set value, in my instance it is variable in length. The only part that is fixed is the last four characters to the right which are the numeric portion I would like to increment. For example the field can equal:

QACP-M-PIQ-6059
QACP-M-PREF-6002

how to extract just the numeric portion, increment it by one and save?

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Jun 11, 2014

I have a continuous form that displays data from a table. What I am trying to accomplish is to change the format of the field if the string length is equal to 11, to "@@@-@@@-@@@@-@". Otherwise if it is greater or less than 11 then no format.

I have tried it using code:

If Len(Me.FormFieldName)=11 Then
Me.FormFieldName.Format = "@@@-@@@-@@@@-@"
End If

Is it even possible and if so is my syntax correct or am I way off base?

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Dec 4, 2013

My form which is based on a table carrying same name doesn't append the full length of the text to one of the fields.

I don't know where the mistake is occurring or indeed I don't know if the error is in the table or in the form.

The form is showing full length of the text but when I look it in the table, it has just one or two bits of the full length.

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Aug 6, 2014

I have a table with about 300,000 records. About ten fairly small fields per record. I am trying to change the length of a text field from 25 to 40 characters, and I get the error message, 'MS Access can't change the data type. There isn't enough disk space or memory'.

I have never seen this message before. I have about 64 Gig of free disk space. What can I do?

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May 26, 2005

I've read several previous threads regarding this...but could not find an answer:

Is it possible to store a PDF file in a table?

I know that I can store a hyperlink with the path to a PDF file located elsewhere, but I would rather store the file in the database itself.

If it can be done, how do you do it? Are threre drawbacks?

Thank you.

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Zip StoraGE/ DaTa BAsE

Jul 6, 2005

(this is a repost )
I will skip the basic intro of "Hi im new to access and i dont know.."
anyways, what I am trying to search for and I dont know what Im looking for is this.

Q1) I would like to be able to open a zip file, read the NFO/txt file from within and import certain areas of the NFO file,the NFO file of course is layed out with ascii art but there is a predetermined area where certain info is obtained. for example: I would like to capture/import the URL, testers name, date avaliable, zip file name.THEN the text imported would be written to the database. It would be nice to figure out how you go about importing certain lines but im not sure how to ask the question and find the answer the right way. ie...(ascii art found here http://www.ascii-art.de/)
-= I did search import text and get text and didnt find what I was looking for=-

Q2) How do I write to an ascii file/nfo/txt using access, there is a template or a layout that is pre done,and i need certain fields filled out, just like they above layout.

thanks for all your help, you guys are awsome, and keep up the good work!

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Nov 6, 2006

I am not sure whether this is a problem with MS Access, Visual Basic or Windows.

I have taken over supporting & developing an MS Access 2000 DB for a small charity & am not an Access expert or a programmer. The Application includes processing to create, amend & store retrieve standard letters based on a Word document called MyMerge.doc. The operating systems is Windows XP for the PCs with a MS Server 2003.

Each letter is allocated a number ‘CallID’ which is used to retrieve the letters later. The letter text is in MessageC.

The VB code to store the letters (Save As) is

Dim strTest As String, db As DAO.Database
Dim td As DAO.TableDef
Set db = CurrentDb
For Each td In db.TableDefs
If Len(td.Connect) > 0 Then MessageE = Mid(Left(td.Connect, InStrRev(td.Connect, "") - 1), 11)
GoTo jumpout
Next
jumpout:
MessageC = "%fa" & MessageE & "Db Letters" & MessageC & " " & (CStr(Forms!Contacts![PostalCode])) & " " & Trim(DLookup("[TitleType]", "Title Types", "[TitleTypeID] = Forms!Contacts![TitleTypeID]") & " " & Forms!Contacts![FirstName] & " " & Forms!Contacts![LastName])
objWord.Application.Activate
SendKeys MessageC

The VB code to retrieve the letters is

Dim MessageE As String, db As DAO.Database
Dim td As DAO.TableDef
Set db = CurrentDb
For Each td In db.TableDefs
If Len(td.Connect) > 0 Then MessageE = Mid(Left(td.Connect, InStrRev(td.Connect, "") - 1), 11)
GoTo jumpout
Next
jumpout:
Dim WordApp As Word.Application
Set WordApp = CreateObject("Word.Application")
WordApp.Visible = True
WordApp.Application.Activate
MessageE = "%fo" & MessageE & "Db Letters*" & CallID & "*.doc"
SendKeys MessageE
Set WordApp = Nothing
GoTo Exit_Command53_Click

The success rate varies from PC to PC and user to user. It will work with one letter and not the next. It is very difficult to identify a pattern. When the Save As does not offer the expected name & path, the Application (or operating system?) offers to save ‘MyMerge’ to the user’s My Documents folder.

In that case I tell the users to correct the path themselves and save the document under the CallID. Theoretically, retrieval should work since this uses the CallID and wild cards. Sometimes it does but often it will instead retrieve a document in the user’s My Documents folder. If it does go to the right folder, you sometimes have to replace the last wild card with ‘.doc’. I have tried replacing the last wild card in the VB code with ‘.doc’ but this does not work!

Finally, I alone get the message ‘Save failed due to out of memory or disk space’, neither of which is true. This makes it very difficult to continue investigating the problem. If I use a copy of the DB on my hard drive rather than the network I can save but not retrieve.

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here is one of my formulas

=Form!QuiltTypes!QuiltPrice*[TotalInches]

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This is my first time here so if you need more info or anything please let me know.

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hi,

What's the total storage capacity of Access Database

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how many Tables Can be Created at Max

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