Slow Query On Table With Many Memo Records
Feb 7, 2006
Ok my database tracks escalations through my team, I have a main table that stores the unique ID's from the other tables I use in my Combo boxes, this part works really well, no problems.
My issue is with a tableI have claled "TBL_EscJournal", this table has the following fields:
JournalID (Unique Ref, generated by autonumber)
EscID (the escalation Id that this journal is relevant to)
Journalcreator (captures name of person who as entered the journal)
JournalNotes (memo field where you enter your update)
JournalDate (Date/Time the journal was entered)
So typically when viewing the main detailed form for a particular escalation I have a subform that shows all the journal entries relevant ot that escalation.
This table is huge, about 70% the total size of my database, partly because of the number of journal entries and partly because it is a memo field and a lot of data is required sometimes.
Up until now th edatabase has been located on a local server and has been fine for local users (2-3 of us) however there is a requirement for another office to use this database.
I am now experiencing massive performance issues, whereby the data is tkaig a long time to refresh on the other sites.
I have migrated the DB over to a SQL back end but still finding performance issues, which further testing has shown that the TBL_EscJournal is the cause.
So a coupel of things really, is there another way I can layout this table to improve performance or should I be uerying the data from this tabel in another way, would it be better for me to split TBL_EscJournal in two, the first part keeping the date/time and person who entered and the second part keeping the notes. Possibly increasing the query speed by carrying out the query on the first part of the table and not on the notes (memo) part ?
I hope this makes sense, if not feel free to PM me,
Appreciate any help or assitance you could offer
MattP
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Sep 27, 2013
i am using a form like form customer orders in northwind 2003 database. in my form there are 3 sub forms.data of subform1 will be filtered by one of the field in the main form.subform2 will be filtered by one of the field in the subform1 and ...
also i have added some code for highlighting current row of each form/sub form , now my problem is when navigate thorough records of main form by using navigation button , showing each record after pressing navigation button is a bit slow (it takes 5 seconds), problem is from subforms or codes for highlighting current row?
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Dec 14, 2007
Hi All,
I'm having trouble with access. Basically it has been very slow to load
(over 30 seconds when not opening a database) and when opening a database it just crashes.
Has anyone any idea what could cause this as it worked fine before ?
also would a reinstall help ??
-Elfman
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Mar 9, 2006
Hi all
I was hoping to get a little advice as to my problem. I have a database with many, many reports, forms and queries. I wanted to split the database to secure the tables and important data. So I use the database splitter wizard and ever thing went just fine. So now my database1 looks into database1_be for all tables.
My problem is: my program now runs very slow. The slowest seems to be when I am adding a new record. I can live with the slowness of retrieving an existing record. I do not have a server nor can I afford one at this time, so currently I am running a peer-to-peer network with the database1_be located on one of my computers second hard drive.
Is there something I can do to help speed things up?
Thanks Enviva
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Feb 17, 2005
Hi,
I have developed a small database with 3 or 4 forms which works ok on most PC's. But when I put it on a certain PC, it almost works properly except for one form which is very slow accessing the table!
Eg. It could take 2 minutes to use a combobox.
All PC's have Access 2000.
Would there be a reason for this?
Is this an access problem or a PC problem? Are there special settings that I'm unaware of?
Thanks in advance
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Mar 4, 2015
I am looking for a query that will return records from a table that have related records in another table. Opposite to the Unmatched Query Wizard.I have two tables: tblSupplier and tblSupplierProducts.The two tables are related by the field "SupplierId".I need the query to only return Suppliers that have Products.
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Mar 21, 2006
I have a database with a table that contains 360,000 rows. I built a form with four boxes where a user can specify values to limit the result set. And instead of having a new window open with the results, I built a subform and placed it on the main form to display the results.
Here is how it flows:
Main Form -> user enters search criteria
Search Criteria -> feed as criteria in query
Query Results -> display on subform
Subform -> shows on main form
The query is setup to take the values from the main form and either use it if it's not null, or return all values if the field is null.
The problem I am having is that on opening the main form, Access is taking the four null values from the main form search fields, feeding them to the query, which is then feeding the subform. So 10 minutes later when the main form finally opens, I have 360K records displaying in my subform.
What I would like is to be able to open the main form instantly, specify my search criteria, then run the query, then have the query results populate the subform.
What do I need to do?
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Sep 27, 2005
Hi,
In my database im using several union queries as they turn out to be very useful.
However, whenever I have a calculation that involves one of the union queries, things happen at a very slow pace. Is there a way to speed it up a bit?
Thank you
Stacey
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Nov 21, 2007
Hi all,
I'm doing the simplest little 'INSERT INTO' type operation here with recordsets in Access 97 (SR2). Inserting into a table whose name is stored in the Const TABLE_CANDIDS.
I have a little piece of code that doesn't move on until the changes are committed to the table (usually this is just a single long integer being added).
The transaction takes up to a second to commit, and sometime doesn't commit at all. I tried putting begintrans and committrans around the loop but it seems to make the problem worse.
Can anyone spot my error?
Thanks,
Rob
' Empty the TABLE_CANDIDS table then start filling it with the current
' list of Candidates
DoCmd.RunSQL "DELETE * FROM " & TABLE_CANDIDS
Set rstCandIDs = CurrentDb.OpenRecordset(TABLE_CANDIDS)
' Find the CandIDs for all selected items (default to select all)
For Each objListItem In objListView.ListItems
If objListItem.Selected Or Not blnSelectionOnly Then
rstCandIDs.AddNew
rstCandIDs!CandIDFiltered = CLng(objListItem.Text)
rstCandIDs.Update
lngCount = lngCount + 1
End If
Next objListItem
rstCandIDs.Close
' Wait for up to 1 second until the new value(s) are committed.
Screen.MousePointer = 11
datStart = Now()
Do While IsNull(DLookup("CandIDFiltered", TABLE_CANDIDS, "CandIDFiltered <> 0"))
If DateDiff("s", datStart, Now()) > 100 Then
Exit Do
End If
DoEvents
Loop
Screen.MousePointer = 0
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Aug 25, 2006
I need some help. I created a database to capture information from an employee survey. Most of the answers required a check if they agree or no check if they do not agree. There was one "memo" field inwhich we allow the employee to VENT. I have provided the team with all sorts of reports with percentages and figures. Now they want to remove any comment that had money, pay raise, bonus etc. They also want to organize the comments in some type of flow. Like all the "pats on the back" in one area, Day offs in another, plaque on wall grouped together, etc.
Can one of you experts, please give me some help?
Thanks!
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Jan 19, 2008
Any ideas why a particular query would run very slow in access 2007 when it runs fine on 2003. This is running on a terminal services environment and the database connects to a ms sql 2000 server. I will try it outside terminal services when I can but I can't understand the problem. Im not talking about slightly slower its something like a factor of 100 or 200 slower (I had to limit the dataset just to get a return within a day).
The database was an access 2000 mdb for compatibility across computers but I have tried converting it with out any luck.
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Aug 9, 2005
Hello,
I have the following query that I set up as a test, and it runs fine:
SELECT STATUSHISTORIE.*
FROM STATUSHISTORIE LEFT JOIN PROBLEM_DE ON STATUSHISTORIE.PROBLEM_ID = PROBLEM_DE.PROBLEMNR
WHERE (((STATUSHISTORIE.STATUSDATUM)<#1/1/2005#) AND ((PROBLEM_DE.DATENBEREICH)='SPMO') AND (((Left(([PROBLEM_DE].[MODULZUORDNUNG]),InStr([PROBLEM_DE].[MODULZUORDNUNG],"-")-2)))='K29') AND ((PROBLEM_DE.ERLSTAND)<>"WEIF"))
ORDER BY STATUSHISTORIE.PROBLEM_ID,
STATUSHISTORIE.STATUSDATUM;
I then set up two global variables ( a String and a Date) and respective functions to return them – ReturnE( ) and ReturnKW( ). Now my query looks like this, but takes ages to run:
SELECT STATUSHISTORIE.*
FROM STATUSHISTORIE LEFT JOIN PROBLEM_DE ON [STATUSHISTORIE].[PROBLEM_ID]=[ PROBLEM_DE].[PROBLEMNR]
WHERE (((STATUSHISTORIE.STATUSDATUM)<ReturnKW( ) ) AND ((PROBLEM_DE.DATENBEREICH)='SPMO') AND (((Left(([PROBLEM_DE].[MODULZUORDNUNG]),InStr([PROBLEM_DE].[MODULZUORDNUNG],"-")-2)))=ReturnE( ) ) AND ((PROBLEM_DE.ERLSTAND)<>"WEIF"))
ORDER BY [STATUSHISTORIE].[PROBLEM_ID], [STATUSHISTORIE].[STATUSDATUM];
My two public functions that return the global variables look like this:
Public gstrE As String 'global variable: contains E used for query
Public gdatKW As Date
Public Function ReturnE ()
ReturnE = gstrE
End Function
Public Function ReturnKW ()
ReturnKW = gdatKW
End Function
The tables are actually Views set up from an ODBC Data source. Can anyone please tell me why these global variables are causing the traffic jam? :)
Thanks in advance
J
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Jul 27, 2006
All,
I'm not sure how well I've managed to search on this as I'm not too sure where to start!
I have an append query as follows:
INSERT INTO tbl_Employee ( Company_No )
SELECT tbl_Co_Data.Company_No
FROM tbl_Co_Data
WHERE (((tbl_Co_Data.Company_No) Not In (select Company_No from tbl_Employee)))
ORDER BY tbl_Co_Data.Company_No;
Basically this query is run a number of times a day and appends new company numbers in to a table - 'tbl_Employee'. It's badly named - it's not got much to do with employees. Any way it takes a good 3 minutes to run with about 20k records in tbl_Co_Data and probably 18k records in tbl_Employee.
It looks to me like it's looping through each record in one table for each record in the other - which is plain daft.
I'm currently experimenting with a DTS package that puts tbl_Co_Data in to SQL server first before the query would run (tbl_Employee is already there) with a view to running a SP and ditching the query.
Does anybody have any other ideas as I'm having problems with the DTS in that it appears to be pretty slow in itself!
Many thanks in advance for any response.
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Feb 13, 2008
What would be a better way to do below query --
UPDATE (tblAFFIRMATION_REC_TOOL LEFT JOIN tbl_TZero_Spns ON tblAFFIRMATION_REC_TOOL.CptySPN = tbl_TZero_Spns.SPN) INNER JOIN Entity ON tblAFFIRMATION_REC_TOOL.ReferenceEntity = Entity.ReferenceEntity
SET tblAFFIRMATION_REC_TOOL.[Scope Reason] = IIf(IsNull(tbl_TZero_Spns!SPN) Or (Entity!Test='EM'),tblAFFIRMATION_REC_TOOL![Scope Reason],'TZero Trade')
WHERE ((([tblAFFIRMATION_REC_TOOL]![Scope Reason])="Affirmation Eligible"));
the way it right now, it's running for about half hour..
Could that be IIF statement that slows it down ?
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Jan 4, 2008
I have a problem that is Vista related. My business partner has just purchased a laptop with Vista and one of the problem areas is SendKeys. I don't have Vista and he is away at the moment so we only have part time communication so I am trying a few solutions in the hope of getting the problem fixed.
He is getting a message along the line of.....Access needs to be reinstalled because SendKeys is not available.....he does not has his MSOffice with him so that can't be tried at the moment, although everything else is working OK.
There are a few macros involved but I have converted then into VB Module and that works OK for me on XP, although it does not carry out all instructions but it basically works. But it will be a few days before he can try what I have sent him.
Note: I just notice that my conversion to VB module is not doing the SendKeys. No messages etc it is if the section covering SendKeys was not there. The example below was done with XP and macro. The SendKeys and the various other actions are all in the module. Edit...All is OK....my conversion of the macros to a module worked:D
So I would like to try another possible solution and that being to avoid SendKeys.
The situation involves a file note entry system. Each file note creates a different record and in each record there is a memo field with the file note that was made and of course time and date.
There is another table that holds one record for each person that has a file note made. Whether one file note is made or a 100 file notes there is only record.......The record is created when the first file note is made and the table will not accept duplicates on the persons ID number.
When a file note is made the system then opens the record in the other table and adds with SendKeys to the entry in the memo field on the "one record only table"
A form opened on the "one record" looks like this and as you can see the contents of the memo field from the "many records" have been combined into one. Can I do this without using SendKeys
5/01/2008 11:34:51 AM Test 1 The quick brown fox jumped over the lazy dog
5/01/2008 11:35:21 AM Now is the time for all good men to come to the aid of the party
5/01/2008 11:35:50 AM Why did John have to buy a computer with Vista?
Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
5/01/2008 11:37:38 AM zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz zzzzzzzzzzzzzzz
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
xxxxxxxxxxxxxxxxxxxxxxxxxxxx
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Mar 9, 2007
Hi All,
I can use some help with a jumping off poit.
*Please see attached file*
I have 2 tables tblSFDC and tblTheCall
tblSFDC (contact information) includes CustID (primary key) and a memo field "Notes"
tblTheCall (call information) includes CustID (relates to tblSFDC) and "activity data fields" ie "Live", Left Message" , Sent email".
tblTheCall may in some cases have multiple records for each CustID
I need to :
Concatenate from tblTheCall Field Names and field values (that are not null)
Insert into tblSFDC.Notes
Where tblTheCall.CustID = tblSFDC.CustID
*Please see attached file*
TIA
Detrie
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Jul 8, 2013
Access 2003
I have a process which imports a txt file into a memo field of my TBLORIGINAL table Each file may have one record or it may have multiple records Every record begins (exactly) with
Quote:
FRE Order Order RAD ShipDate Customer City State Postal Code
For each record in the memo field, I need to create a new record into my TBLPROCESSED table
This can probably be done while it is importing but I need to keep the original file intact
I suppose I could copy and paste but there must a vba way of doing this
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Jul 9, 2015
I am trying to use a criteria to filter out nulls in concatenated variable, which slows the query considerably.The part that makes it slow looks like this -
WHERE ... AND (([tbl1].[x] & [tbl1].[y]) <> "") AND ...
If I work them individually, it's not a problem, the query is fast, but I have to combine them first in order to produce the correct output.
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Apr 10, 2008
I have an Access database where we grade reports. At the end of the grading form I have a memo field [Comments] for the grader to enter comments about why the report received the grade [Grade]. Each report is graded by multiple people. So for example, ReportNum 08-001 may be graded by 5 people and therefore will have 5 records in the database. I need a report to show all the comments for all the reports where the grade is <80. I know how to do this except for how to display all the comments from the memo field in the 5 records on one report for that ReportNum.
I hope I am making sense. I appreciate any help.
Jim
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May 21, 2014
I have an access 2007 database connect to sql server 2008.I am running a pass though query to search between two dates (this query has been fine for years)
If I now run any search using parameters from 26th March 2014 to date - the query takes 10+ minutes to run.If I then change the date to 25th March 2014 to date - it runs in a nano second.I have not changed the back tables and I have not changed the format the data is saved in.
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Jan 2, 2015
created a query (in Access 2010) that joins several linked tables (to an Oracle database). The query runs in about 20 seconds when I filter with a hard coded date (e.g., #12/31/2014#). The Oracle table column Im filtering on is defined as date/time.
When I attempt to change the hard coded value to a soft coded value (e.g., Forms![Form1]![Latest_Extract_Date]), the query runs over 5 minutes. In this case, the form field has the exact same value (12/31/2014).
Ive encountered similar issues using Access 2000, 2003, etc. This is quite frustrating. Does Access interpret #date value# is a special way? Is there a way to trick Access into the thinking a soft coded date is a hard coded date?
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May 20, 2005
I have a front end that is connected to three back end files. The front end is on my local computer while the back end files are on a network drive.
There are a lot of calculations that go into the queries and intermediate queries. For a report, I have based it on a UNION query.
But when trying to design the report it takes about 45 seconds just to do any one thing, e.g.;
- Add Groupings
- Add Grouping Headers//Footer, sorting option
- Add bound textbox
:eek:
Needless to say this is very annoying.
:mad:
The union query itself runs fine (takes about 15 seconds to run) and returns about 12,000 Rows. The union query looks like this (I changed the field names to make it read easier, hopefully);
SELECT a1, a2, a3, a4, a5
FROM qry_A;
UNION SELECT ALL a1, b2 AS a2, b3 AS a3, a4, a5
FROM qry_B;
UNION SELECT ALL a1, c2 AS a2, c3 AS a3, a4, a5
FROM qry_C;
UNION SELECT ALL a1, d2 AS a2, a3, a4, a5
FROM qry_D;
UNION SELECT ALL a1, e2 AS a2, a3, a4, a5
FROM qry_E;
UNION SELECT ALL a1, f2AS a2, tblG.f3 AS a3, tblG.f4 AS a4, a5
FROM qry_F;
One solution I came across when searching the forums was to use an Append Query to append the query results to a table and base my report on that. This does indeed fix the problem.
But what I was wondering if it was is my query design that is causing it to be slow or is it just the fact that I am returning 12,000 rows?
:confused:
In case it matters, I wanted to mention that I can’t use the report wizard to create the report. When I select the union query, the fields will be showed for awhile then they just disappear. That in and of itself doesn’t cause any trouble since I am creating the report using the design view and not the wizard.
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Nov 7, 2013
I am trying to provide the user a custom search feature. They want to enter a keyword or phrase and search 3 memo fields and filter the form base on the records found. they also want to be able to search the whole phrase or any part of the phrase.
I have a like expression for any part of the phrase but I when I set it up for whole phrase it doesn't work. Even if I run a simple query and use
For example: There's an acronym the user is looking for : ACA
If I set my query up like this: [field1] like "*ACA*" or [field2] like "*ACA*" or [field3] like "*ACA*"
it not only finds records with that acronym but it also finds records where that combination is found in a word, for instance vacate.
How can I set up my query to find the whole word?
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Nov 26, 2013
I'm using an UPDATE query to update records in one table (tblMain) from another table (tblTemp)
Here is my SQL :
Quote:
UPDATE [tblMain]
INNER JOIN [tblTemp] ON [tblMain].[MainField1] = [tblTemp].[TempField1]
SET [tblMain].[MainField2] = [tblTemp].[TempField2];
I only want to update the records in tblMain which have a corresponding record in tblTemp (linked by MainField1 / TempField1)
If any record doesn't appear in tblTemp, I want tblMain to retain the existing value for that record.
However, it appears that in such situations, the record in tblMain has it's MainField2 value set to null / ZLS.
I've tried using LEFT JOIN and RIGHT JOIN and also tried WHERE clauses but the result is the same every time.
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Jul 13, 2006
I have a Make Table query that includes a new field concatenated from a numeric field and a memo field, with some assorted text elements -
Issue Description:"("&[number]&") "&[Description]
When I run the Make Table, the new field "Issue Description" is created as a text field, NOT as a memo field.
Is there any way to insure that this field is created as a memo field.
Thanks.
Susan
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May 13, 2014
Is there a way I can take each entry in a memo field and put it into a text field in a separate table. The database is getting really big and the customer notes field for each record has lots of entries. The memo field looks like this:
8.4.14 Ordered 2 cartons
20.3.14 Ordered 2 cartons
4.3.14 Ordered 2 cartons
18.2.14 ordered 1 carton
30.1.14 ordered 3 cartons SCENTED wipes
[Code]...
I want to take each line and put put the date in a date field and the text in a text field in a separate table linked by CustID. Is there a way to do that?
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