Is Access slower at summing null records than SQL server?
I have a query which takes less than 1second in SQL server but takes about 5-10 in Access but can't think why there is such a lag in processing speeds.
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
I am currently creating an Access 2007 database for calculating salesperson commissions. I have a table with 5 fields I'm working with: SalesRep, SOWRep, TerritoryRep, Period and Commission. I am trying to build a query that will calculate commission for a salesperson for each record where their name appears in one of the first three fields. Each time their name appears, they get the commission listed in the Commission field for the stated Period. I have managed to do this part successfully. My problem now is that I am creating a query that will sum all of their commissions by Period. I have run into a situation where sometimes a salesperson will not appear in one of the rep fields, resulting in NULL values in the previous queries. How can I create a final query that will sum correctly even if there are NULL values returned on the previous queries?
Here is what I have so far:
November: Avg((SELECT [SumOf1/3GM$s] FROM [BaxterActualMargin1] WHERE [Period] Like "November*")+(SELECT [SumOf1/3GM$s] FROM [BaxterActualMargin2] WHERE [Period] Like "November*")+(SELECT [SumOf1/3GM$s] FROM [BaxterActualMargin3] WHERE [Period] Like "November*"))
NOTE: Im working in MS Access 2003, only results in this SQL/database (not mysyl, MSSQL etc)
I want to be able to ORDER an SQL query and put the NULL values last.
I have a basic databse:
Table name: PeopleTable
Field names: TableID, PersonField, PersonID
The aim is to order by PersonID and put the NULL values last
See pic1.jpg;
The picture (pic1.jpg) shows the database as it is without a query.
See pic2.jpg;
Picture 2 (pic2.jpg) shows the query results when I use the orderby statement (SELECT * FROM PeopleTable ORDER BY PersonID As you can see it shows the results ordered by the PersonID however the NULL values are first.
See pic3.jpg
Desired results, it is ordered by the PeronID and the NULL values are last (NOTE this is an editied screenshot).How can i achieve this is MS Access 2003?
I have a query with an INNER JOIN and ORDER BY that is working great. Now, using the same JOIN, I need to update values in one table with the values in another. I thought it would be simple until I learned you can't do an ORDER BY with an UPDATE. Is there another way to achieve the same result? If you remove the 'ORDER BY', the statement below doesn't produce an error but the results are not correct:
UPDATE TableA INNER JOIN TableB ON (Left(TableA.CDN,6))=(TableB.CDN)
SET TableA.HCC = TableB.HCC
WHERE TableB.HCC Like '241*' AND TableB.BBB = 'X' AND TableA.CCC = "1234" AND TableA.HCC IS NOT NULL
ORDER BY TableB.HCC, TableA.CDN;
It might be an easy one but I just wasted the past hour deciphering through my code in order to solve the run-time error '94' that I'm getting when trying to execute the following code:
Code:
Private Sub cmdUpdateDates_Click()
'###################################
'This sub aims at combining the timesheet date and the start and end time into the fields [Start Time] and [End Time].
'###################################
Dim intCounter As Integer
intCounter = 0
Dim rs As ADODB.Recordset
[Code] ....
I'd like to create a query which will consist of simple SELECT statements as follows:
SELECT [table1].[field1], [table2].[field1], [table2].[field2]
FROM table1 INNER JOIN table2 ON ([table1].[fieldX] = [table2].[fieldX]);
The challenge arises b/c instead of joining on equal values, such as the following:
[table1] INNER JOIN [table2] ON [table1].[field1] = [table2].[field1]
I would like to join based on equivalencies, such as:
[table1] INNER JOIN [table2] ON [table1].[field1] = 34 is equivalent to [table2].[field1] = 2;
I do not know the proper syntax, so this is where I need help. I tried to search online without any success.
I appreciate your help in advance.
I think the title pretty much sums it up....
I have a query where data is first sorted by user input; first field's criteria: [fieldname], then by another field's criteria: Is Null.
I know there are records containing null values in the second field, as I have run a select query with the criteria: Like "*", to make sure they are null, and not zero-length-strings.
The query is refusing to return any results...
Any ideas?
An affiliate sent us a table of email addresses, one per record. We need to find which ones already exist in our master table. Our master table contains an email field but it may contain MULTIPLE email addresses separated by semicolons. How do we create a query (or queries) which tell us which email addresses already exist somewhere in our master table?
View 7 Replies View RelatedCan someone please help with the following:
I am trying to join two tables in a query. One of the tables has only the fullname while another has only the surname (this table is imported from an external database). I need to be able to match the two tables up. Can anyone please suggest how to do this or even if this is possible.
Thanks
Hi everybody,
I have an access database which is around 40 MB after compacting it and I feel that it is slow especially when I open cross table form. Is there any way to speedup the databse.
Note: my databse is on the share drive in my work.
Hi
I have developed a DB for work and it has grown, it is about 60Meg, all of a sudden when I am opening Design View in Reports, or queries it started running really slow.
I always Compact on Close
I have Split the DB.
Still no Joy, I have a brand new Dell PC so nothing wrong there.
What is happening? it is a nightmare to get anything done.
Please advise.
H
Hi Guys,
I've been searching for an answer for a long time, but i have a database with approx 100 forms, 100 tables (most linked to SQL Server) only a small proportion are front end tables, 50 or so queries, 20 or so modules.
Anyway the problem is, is that the database is slow, to open and to develop in, i have a decent system to develop on with a 3GHz CPU and 1 GHz RAM, but i dont get this problem with any of the other access databases i deal with.
It's kind of a lagging effect, then once it has been written into memory it's quicker... but why would that be different between the systems, as most the systems i deal with are fairly similar in size and in complexity.
For example when loading the logon screen, which is a simple unbound form, it seems to lag, there is 1 combo box which has a front end table as its row source, like 6 records. Then a username and password text boxes which are not bound to anything. Why should this be lagging? After like 2/3 secs its then ok, once ive logged in and then go back to this logon screen its fine, so i think it has something to do with memory.
Anyone else had anything similar happen to them and did they do anything to minimise this lagging effect?
Any ideas or comments are welcome,
Thanks.
Hello,
My acccess (.mde) application suddenly slowed down. I have increased the size for some fields in some Tables. Is it could be the reason for this? Is there any way i can get the speed back.
Many thanks in advance..
Nitesha
I am trying to do the good 'ol sales report (query) to include customers with no sales.
I have a customers table, account number table, sales table & sales (line) detail table. (all linked in that order)
If I run a query to show customers (in the customer table) with account numbers, that works
An unmatched query to show customer without an account number works (but of course the unmatched account number field isn't shown).
How can I get the two two be shown together with the "unmatched" having a null or 0 for their account number?
I am guessing in principle, the resulting solution can be modified to show customers without sales alongside those with sales?
I have one PC running win98,acc97 and Access is CRAWLING. I'm seeing this on ONLY this one PC, and in multiple databases.
Any ideas? Possible places to look to fix this? I've tried reinstalling Office, I'd rather not have to rebuild this pc.
Thanks,
-Mike
I not a big time DB person so please be gentle. I am a computer technician at a school district and need some help. We use a program called Aeries made by Eagle Software for out attendance and grading. It uses an interface that runs through Microsoft Access. There are two version of this software. One is the SQL version and the other just uses an Access DB on a server. We have the Access DB version running Access 2003. It was explained and accepted in the beginning that we didn’t really need the SQL version because of our district size which is some where around 1500 students. Our district consists of 6 school sites that are all connected with a fiber optic backbone running at 200mb with a minimum of 100mb to each desktop. We have a DB for each site running on 1 very beefy server in a central location. I’ve run my problem by the software maker and don’t feel like I’m getting much help. The problem I am having is slowness during login. When the first user of the day attempts to login the program is fast, about 10 seconds from “ENTER” to the main menu. As soon as that 1st user clicks one of the menu buttons anyone else who attempts to login to that database after that experiences at least 30 seconds from “ENTER” to the main menu. I’ve watched what files are accessed and when. I see that when the 1st user logs in, the systemxp.mdw file is accessed and a systemxp.ldb file is created. Then when the user clicks a button on the main menu, the sch05xxx.mdb is accessed and a sch05xxx.ldb file is created. The sch05xxx.mdb file is the main database file for any particular site. The “xxx” would be the site number. As soon as that file is accessed or that lock file is created the user will experience the long login times and sometimes as long as 4 minutes. I don’t believe this is a hardware problem. During the same time that users are slow I have made a copy of one of the databases onto the same HDD on the same server and as long as I’m the 1st person to open it, it will fly. The 2nd person is slow just like the rest. I also don’t think it’s a permission issue, at least not in the domain. I’ve run all these test logged in as myself and have Domain Admin rights to everything. I believe this is a “split database” with the tables on the server and the forms, and queries on the users computer. I read an article here, http://www.microsoft.com/office/previous/xp/columns/column05.asp called “Why is Access 2000 slow for more than one user?” Has anyone else had this problem or have a solution? If I’ve missed something and you need more info please let me know.Thank you for your time and I appreciate any responsesJohn
View 2 Replies View RelatedI have access 2003 installed on two different machines. One machine was built 6 months ago with the best hardware available. The other was an older slow IBM.
For some reason, I am experiencing what appears to be some serious time delay (talking in the range of seconds, sometimes tens of seconds) when building a report that has a subreport in it on the fast machine. Yet when I load the exact same database on the slow machine, the report opens instantly.
Any ideas? I'm lost.
Hi,
I have an access database that runs fine on our current systems (mix of office 2002, 2003 and windows xp/2002.
However we have one new machine here running windows vista and office 2007 and the database runs super super slow. just about every operation takes 10 times plus to run!
I have looked at the sticky subject at the top of this forum and it's not the problem linked to here http://support.microsoft.com/kb/935366/ as this uis the only vista machine we have accessing the database. the same problem also occurs when running locally on my home machine (again vista and office 2007). From memory if is fine when running it through office 2003 on vista.
Anyone else have similar problems and find a solution?
Regards
John
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.
I am using MS Access 2000 in a Windows Terminal Server 2003 Environment and the performance is incredibly slower than running the same job on a Stand Alone CPU with Access 2003.
Any idea? Access 2000 is running slower on a TServer?
May the Access version difference explain the difference?
Any idea would be appreciated.
Thanks!
In Access 2013 I have a query that join two tables, Conduminium Owners to their possetions (fractions of conduminium).
Owners.OwnOwners.Vote SumOfTblFracPerc
O; P................................No............... .9,54
F....................................Yes.......... ......5,48
L; Q................................Yes.............. ..7,13
M; U...............................Yes............... .7,86
H...................................Yes........... .....5,71
D; R...............................Abstention......7, 78
etc...
This query is grouping and summing, and I want put the results in a form and see it grouping the fractions in lines like this:
"These were the votes of the owners of fractions:
O;P, voted No = 9,54
F, L;Q, M;U, H, G;W, C, N, I, voted Yes = 37,72
D; R - voted Abstention = 7,78
How can I do it?
Easy one for the experts here I hope:
I want query to show all results including any null values because at the moment it just misses the null values out.
So for example instead of the query saying that Fruiterer A has 5 apples, 0 oranges and 4 bananas it just says that Fruiterer A has 5 apples and 4 bananas. Therefore because oranges was a null value then it simply makes no reference to oranges.
Please help, many thanks,
Paul
Hello,
I have two tables called table1 and table2 with following fields:
Table1:
Name
NameId
Table2:
Name
NameID
Visits
where name and nameid is same but visit can me 0 to 230. name in table2 is
same as table2 but only showing visit 1 or higher. How can I make new table that can list all name, nameId and visits.
I can create new table but it shows only table2's record. so all I need is
table1 and table2 record if names are missing in table2 then put 0.
Viral
Hi all
I have 3 linked tables in a vehicle database. 1 keeps a record of Service Due date, 1 has the Fleet numbers and the last contains Vehicle Condition reports.
They are linked by the Fleet numbers. I have a query that returns the Services due between 2 dates. What I would like is to have the same query return any outstanding Vehicle Condition items as well for any Vehicles due for servicing. Currently, I can include the field in the query but if there are no current items for a vehicle in the Vehicle Condition table then the query does not return that vehicle as a result. Any suggestions would be appreciated.
Regards
Craig
Hope someone can help with this. I'm sure it's dead simple but it's driving me insane!
The scenario is a number of departments who are processing something (sales for example). So, for October
Dept 1 - 20 (Sales)
Dept 2 - 10
Dept 3 - 2
Dept 4 - 7
Now I want to count the number of sales completed from these totals. However, as Dept 3 has no sales completed for October it does not show in the query. So I get
Dept 1 - 7
Dept 2 - 2
Dept 4 - 6
Any idea how to get Dept 3 - 0 to show up in the query?
Any help greatly appreciated!