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06.14.2004 at 12:01AM PDT, ID: 21024260
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LImitations of Access
Tags: access, limit, ms
I would like to know the limitations of access in terms of

1. how many rows it can process
2. how many column it can process
3. what is the best solution if your database exceeds the limitation other that converting to ms sql or any other high end database software?
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Question Stats
Zone: Microsoft
Question Asked By: suhaime
Solution Provided By: Dhaest
Participating Experts: 6
Solution Grade: A
Views: 723
Translate:
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06.14.2004 at 12:05AM PDT, ID: 11303998

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06.14.2004 at 12:09AM PDT, ID: 11304011

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06.14.2004 at 01:03AM PDT, ID: 11304247

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06.14.2004 at 02:07AM PDT, ID: 11304539

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06.14.2004 at 03:30AM PDT, ID: 11304904

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09.23.2004 at 12:52PM PDT, ID: 12137078

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09.27.2004 at 11:52AM PDT, ID: 12163093

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06.14.2004 at 12:05AM PDT, ID: 11303998
The following are Access table limitations:

Microsoft Access database table specifications
Attribute Maximum
Number of characters in a table name 64
Number of characters in a field name 64
Number of fields in a table 255
Number of open tables 2048. The actual number may be less because of tables open internally by Microsoft Access.
Table size 1 gigabyte
Number of characters in a Text field 255
Number of characters in a Memo field 65,535 when entering data through the user interface;
1 gigabyte when entering data programmatically.
Size of an OLE Object field 1 gigabyte
Number of indexes in a table 32
Number of fields in an index 10
Number of characters in a validation message 255
Number of characters in a validation rule 2,048
Number of characters in a table or field description 255
Number of characters in a record (excluding Memo and OLE Object fields) 2,000
Number of characters in a field property setting 255

The following are general Access limitations:

Microsoft Access database general specifications
Attribute Maximum
Microsoft Access database (.mdb) file size 2 gigabytes. However, because your database can include linked tables in other files, its total size is limited only by available storage capacity.
Number of objects in a database 32,768
Modules (including forms and reports with the HasModule property set to True) 1,000
Number of characters in an object name 64
Number of characters in a password 14
Number of characters in a user name or group name 20
Number of concurrent users 255
Accepted Solution
 
06.14.2004 at 12:09AM PDT, ID: 11304011

Rank: Genius

1) No row limit, total .mdb size is limited by 2Gb
2) Max 255 columns
3) Use ODBC and e.g. MySQL

In general the 2Gb limit will be large enough, but when needed you can place tables in different .mdb's and link them to a "master" .mdb, making the effective size many times bigger.

Nic;o)
Assisted Solution
 
06.14.2004 at 01:03AM PDT, ID: 11304247

Rank: Master

The maximum numbers that Access will support are in the previous replies.You will probably find other limitations before you hit these, such as the speed of your processor and the amount of memory that you have. Things will slow down as your database gets more data to deal with. There is no pre-set limit to number of rows in a table, but the more you have, the slower everything will become.

If you need more columns than 255 , you can join tables together based on the same key field; but usually you are best to reconsider your data structure before you get to that stage.

Assisted Solution
 
06.14.2004 at 02:07AM PDT, ID: 11304539
There is a connection limit, right?
Access allowed up to 10 connection from VB or ASP when I used Access 97.
 
06.14.2004 at 03:30AM PDT, ID: 11304904

Rank: Master

Way before you hit the limits, you are likely to find Access unusable in a multi-user networked environment because all the query processing takes place locally, which means large columes of the mdb file have to be sent to client machines where the query is then executed. This usually ceases to be practical well before you reach the 2G limit and then you would want to move to a proper server-based RDBMS like SQL svr.
Assisted Solution
 
09.23.2004 at 12:52PM PDT, ID: 12137078

Rank: Genius

No comment has been added to this question in more than 21 days, so it is now classified as abandoned.

I will leave the following recommendation for this question in the Cleanup topic area:
    Split: Dhaest {http:#11303998} & nico5038 {http:#11304011} & aflockhart {http:#11304247} & monosodiumg {http:#11304904}

Any objections should be posted here in the next 4 days. After that time, the question will be closed.

routinet
EE Cleanup Volunteer
 
09.27.2004 at 11:52AM PDT, ID: 12163093
Forced accept

CetusMOD
Community Support Moderator
 
 
20080236-EE-VQP-29