Database Size Limited To 2GB / Query Multiple Database Without Linking Tables?
Sep 7, 2011
I'm trying to set up a simple query that links four tables. However, the tables are extremely large, all in excess of 1.5GB each so I had to split the tables up into four separate DBs. I've tried the following with no success:
1) Link the 4 tables in the DB which contains my primary key. This quickly inflates increases the file size above 2GB and won't let me go any further.
2) Build a remote query to connect the four tables. This looked promising until I tried to run the query and it became evident that it only knows to point to the last database source that you specified.
I'm running everything locally on my C drive. The data source are simple text files (1.6 million rows) from the FDA website.
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Nov 29, 2007
Can a Append Query move all my data stored in multiple tables to another database with a identical table structure?
Because as I try to work the query, I keep getting prompted to "Select a table" I want to append to, and I don't want to append to just one table...
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Dec 3, 2012
I have 2 identical database in terms of structure but it differs in data.
Basically I would like to import data from subDatabase to mainDatabase and ensuring that there are no duplicate records.
I have used the "link to datasource method" through importing the tables to have the "updating" function.
However, this method also means that the records in mainDatabase are also imported over to subDatabase which I do not want.
Is there a method to ensure that the records are shared/update one way only? (i.e. import from subDatabase to mainDatabase and not main to sub?)
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Feb 5, 2015
I have a question where I need to effectively invert the results of a select query.
I have multiple tables in the database, but the 2 I'm looking at are TBL.Trip and TBL.TripDiary
A trip is logged in the trip table, and then an operator logs a diary entry against the trip. One of the options that the operator selects is when they receive an email back from the traveller, this is logged as a diary entry.
I need the query to look at the DIARY_Action field and select all records in the TBL.Trip that DO NOT CONTAIN an entry for Diary Action "4".
I can produce a select query that gives me the results to see all trips that HAVE had a response, with a simple IS LIKE "4" query in the action field.
If I change this to IS NOT LIKE "4", I get the results that I need, but duplication due to the various other "diary" entries in the table".
I simply need the inverse of the IS LIKE query but cannot see how to remove the duplicates?
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Mar 16, 2015
I was wondering if it was possible to link random external tables to the Active Database through VBA. I would like to run the code that would open up a dialog box that would let the user select the database as well as the tables within that database that the user can select to link to. I am able to select the database and but not able to select the actual tables. The tables will be random so I can't make a constant statement for a specific database.
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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
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Jul 10, 2007
I am developing a database and testing it with dummy data. With 50,000 records, the query process using SQL command is just OK. But if I double the total records, the query process takes longer time. The query is to make recapitulation using SUM of SQL command based on certain criteria. Any idea to make the query faster?
Thanks.
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Apr 4, 2008
I'm having a problem with my database filesize getting larger with the more searches i do. At first i couldn't figure out how it was getting so big, but then i tried a few things and came to the conclusion that every time i do a search it increases its filezile.what made me notice this at first is that the file size of the original copy of my db is 13MB, but if i Save As a different name, like Assets_Backup, then the size of the new file is only 2MB, and after i do some searches it increases again.here is a file with just my search form and search query so you can see the code for them. i removed everything else to shrink the file down, which also made the search form not function properly, but i thought the design and code might be enough.is there something that i can change to keep it from remembering every search?thanks for any help.--------------------after searching the topic a bit more i've found that compacting the database will shrink it down to 2MB, but is this something that will have to be done on a regular basis, or is there a way for it to do it on its own?
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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 ?
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Jul 30, 2014
Im working on a cross comparison database for the three food vendors for my boss. What is the best way to search across the three tables? They all have similar record titles but arent all uniform, and I cant change the records because I have to have the record names the same as the files that are being exported from the vendors websites. What would be the easiest way to search across three similar but not uniform tables in one database? Ive also tried to make three buttons to update the lists after I download the items to have up-to-date prices on the products but am unsure if they are actually working correctly.
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Jul 29, 2015
I currently have 3 tables within a database with student details of three different classes. I need to create a user form that has a dropdown box which I can select a student from one of these tables with a number of text boxes below which brings up all the students details, then once the student has been selected and the correct details are shown then I need to create a button which allows me to move that student from one table to another.
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Feb 19, 2013
I have created multiple tables in my database and now for some reason it keeps telling me it can not find a few of my existing fields.
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Dec 9, 2012
I need to set up an attendance database, that has multiple statuses available for a single day.Example: employee can be present, he can have a sick leave, he can be away on training, or business trip, etc... And for some of those statuses, like business trip, i need to be able to freely enter a comment, stating where he is etc..
Anyway, the key is that this database should be able to offer a "headcount" option, and traceability for past statuses for at least a year, for every and all employees. Now i just need to set up the database tables and relationships.
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Dec 4, 2012
I am creating a training database and i have a courses table. And I need to somehow record all of the different employees that attended a course?
What i can do to make this happen? My employees have an employee number so is there a way of putting all of the employees together in one field? what field would the attendees be? currently is numeric which doesn't seem to work.
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Nov 8, 2012
I'm still working on that sales database...and I now ran into an issue with multiple employees per client.
I have 2 tables, tbl_Employees and tbl_Clients.
tbl_Employees:
[Employee_ID]
[Employee_Name]
tbl_Clients:
[Client_ID]
[Employee1_ID]
[Employee2_ID]
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May 17, 2013
We have two facilities that receive four different types of shipments. I wanted to set up a database to track these shipments. Is there a way for me to set up tables such that the person entering the information can leverage the same date and location field for each entry type? For example, we may only receive two types of shipments today and four tomorrow. I want to avoid having the clerk enter the date and location two times today and four times tomorrow for each data entry.
Here's an example of what I mean above:
Date Location Type Qty
5/16 1 A 10
5/16 1 B 1
5/17 1 A 1,000
5/17 1 B 100
5/17 1 C 1
5/17 1 D 11
I'd like for the clerk to select from a fixed number of locations (1 and 2) and a fixed number of types (A, B, C, or D) and provide the date and quantity received.
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Jan 21, 2014
I have one Master database and multiple child databases in a folder. Each of these databases (both Parent and Child) have identical table called "source". I need a VBA code which will consolidate tables of child database into the Parent database table.
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Jun 15, 2005
Hello friends,
I had converted a Access 97 database to Access XP. The original size of database was about 38 MB.Last week I worked with some queries of different types.Now the size is about 135 MB.How should I reduce the size of database again.I really also dont know whether it happened because of queries... :(
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Nov 19, 2012
i am trying to insert multiple values that i have selected in my listbox to my database access table when i click the "add record button" but the values does not appear in my database table.
i have 2 listbox, when i select the first list box(businessNature) it will display the records in the 2nd list box(lstCuisine). However, the records in the the lstCuisine list box is not entered into the table in my database.
(ps: in my property sheet for my lstCuisine listbox its multi select is simple)
Here is my codes:
Private Sub Add_Record_Click()
If IsNull(Name) = True Or IsNull(Mobile) = True Or IsNull(Email) = True Or IsNull(CompanyName) = True Or IsNull(BusinessNature) = True Then
MsgBox "Please fill in Business Nature, Name, Contact, Email and Company Name"
Else
DoCmd.GoToRecord , , acNewRec
End If
Dim conceptValue As String
[Code]...
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Oct 17, 2005
Hey all,
I am not very gud in access, so I need your help. I am facing a strange problem..... I have created a database which consists of four tables....out of which two tables have relationships. When I make my database and create all the tables as described...its initial size is 320 KB around. When I put data in it, its size increases accordingly....I noticed a strange thing that when I entered some data in my Database it reached around 5MB, but when I deleted all the records from all the tables, the database size didn't decrease. It actually remained of the same size 5MB.......
Why so??? Don't you think that the database size should be decreased when I delete my records from all the tables. Is there any option which I need to select to decrease the database directly??? Well just FYI, I am using JAVA as front end .......
Regards,
Vikas Bhandari
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May 1, 2006
I am a novice to db design but I started my db quite a while ago but have only just noticed it keeps doubling in size periodically, even though I have not added many records or changed much. The first time I noticed this phenomena it was at 65Mb (already too big?), it then periodically (and randomly) doubled in size until it was about 480Mb!! I have been told that when db objects are deleted they are not actually deleted and this would explain the size explosions I saw. I have compacted and repaired the db and it now stands at a much more likely 11Mb. However, I really wanted to understand why this occurs so that i could prevent it from reoccuring (I have set my db to compact on close now - which seems to keep it small in size).
I have a whole load more questions aswell but you will see those in the near future!!
thanks in advance.
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Aug 22, 2006
Hi,
I have created two databases to try and speed up some data manipulation. One database is acting a a 'sniffer' and runs make table, delete, append and normal view queries. the append and make table queries will either write to the other database (the receiving database) or to itself. I have therefore managed to reduce a run time for these queries from 10 minutes for all queries, to less than 1 minute (as previously all in one database using forms).
The problem is these databses contain only about 10 tables to which I am adding data (non of them contain more than 5000 records at the moment) and I also have approx 50 ODBC linked tables (about 30 MB worth so I can retrieve data i want to write to the tables).
The databse has run through my 10 queries about 50 times (each time pasting new info to my receiving tables - still no more than 5000 records) however both database have increaed from a few MB to over 900MB - Is there any way I can stop this from happening as this seems to be a rediculous increase in size - i am also having huge problems compacting the databases.
thanks
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Aug 6, 2007
I know this topic has been floated around a bit, but I don't see any easy solution.
When developing a new projrct or editing an old one, the Front End size grow and can be compressed.
I was keeping an eye on it with this last new project. My front end code base got to about 12 megs compressed. I thought that wasn't too bad, until...
For shxts and grins, I created a brand new database and imported everything from the 12 meg one. This is a pain to get all the code references reset in the correct order. The resulting file size? About 5-6 megs.
Now why couldn't the repair and compression tool do that?
There is NO data stored. This is a code base front end only. I had the options set to compress on exit.
Does anyone else have this issue with ACCESS 2000 and XP? :confused:
Thanks
Dave
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Feb 26, 2013
I recently deleted about 2/3 of the records in my database and notice that my file size did not change. Do I have to run a special procedure to condensed my database?
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May 22, 2013
I am trying to create a database by compiling records from multiple excel sheets. however, since most of the clients still uses the excel sheets to enter records, I am thinking if it's possible to create a linked table in access from these excel sheets that are hosted on an online server.
also is it possible to merge multiple linked tables together? if they have the same field range, so they will append when the linked tables gets updated.
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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.
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