Complex Multi Part Query
Feb 10, 2006
I have a query which calculates Lagtime: which is the difference between the audit date and the current date.
Lagtime: DateDiff("d",[Auditdate],[Date]) and the criteria is >30
this works fine and shows the reports that are over 30 days overdue.
Now I need: There are 2 fields (both are y/no) Minor and Major. Minor need to be answered >30 and Majors with in >7,
how would I write the expression show me Lagtime if over 30 days for a minor and 7 days for a major.
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Sep 7, 2007
I have spent the last couple of days trying to figure out how to make this work.
I have three tables.
tblIntakeMain
[IntakeMainID]
tblIncidentDetails
[IncidentdeatailsID]
tblPersonnel
[PersonnelID]
On the main form I use subforms to link tblIncidentDetails and tblPersonnel to tblIntakeMain. Both subforms can, and do, have many entries. This all works fine. What is not working is the search form I am using.
I am using Gromits most excellent Search Form. The problem is when I create a query, qSearch, to bring together the three tables I get a multiple records which makes the searches very confusing and near useless. Is there anyway around this? Is there something I am missing? Is there another search method I could use that would work in a similar way as Gromits? Please help before the Prozac runs out and I lose my mind--what little it left.
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Dec 16, 2004
I have what I think is a difficult problem to overcome...
I am designing a form to create an invoice. The user will select a workstream and a date range in form frmInvByHrs. Within this I want two sub-forms, one is frmInvByHrsTsht and the other is frmInvByHrsBill. I want the first one to display all the staff and their hours done, and the second one to be in data entry mode where you can enter the hours you want to bill. Each sub-form is based on a separate query.
Is it possible to do this? ie. to have one sub-form in data entry mode, and the other not? It seems to me that the data entry mode is controlled by the MAIN form regardless of the sub-form settings!
If this is not possible, do you know how I can acheive this?
Thanks
S
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Nov 3, 2006
Hi everyone,
I have refined my query from previous threads to involved a module function. This calculates more acurately no of working days between dates and takes into account a holidays table. (All credit to Arvin Meyer on the module:) )
However because the Leave Year starts at the 1 July and finishes 30 Jun I need to compose the date for any current year Year(Now())
Enclosed scrdmp shows my query design. I can easily get it to work as you see it, but obviously as each year rolls over, the year needs to change.
Have looked at many posts but can't find what I'm looking for. This one will get me over the hurdle.
Many thanks,
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Aug 4, 2007
Hello ,
I had incountered with a huge problem in my project and I need your help guys.
I have a huge table contains alot of data about many people- I wanted the data will be checked and sent to a query.
Here is an example for a little project beacuse I couldn't have the big one.
(This example works fine)
My big project is pretty the same but after I try to get the query out I get an error that the query is too complex....(It's really too big when you have 20texts to be checked with 9000 fields)
If you check the query fields you may see how the OR is getting separted and because every text has OR statement everything is hanged by everything.
Someone told me that I can't use query options and mannge it and I should use VB SELECT option - but I can't make it work too.
So I can't show you the real example at all beacsue I can't have it to my computer and It will take alot of time to have 9000 different cells ;
SO if someone knows what I am talking about and ever encoutered it , I would be really thankful !
(Also - You may see some problems with the OR ("") but I mannged it to work with the BIG project so it doesn't matter)
I don't want you to focus the conditions but just the problem itself ...." the query is too complex"...
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May 25, 2005
Hi,
This one is a pain in the but. I tried everything, but why would it just won't work. It always says the query is to complex. Have included the database, anyone a solution?
Thanks
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Sep 16, 2005
I need to perform a query on a database (not designed by me) that is not normalized. In fact it is only one table with numerous fields (many of them Date/Time). I need to query the table based on the date fields only.
Basically the table is used to track when specific functions are completed to determine the time required to perform the individual tasks (accuracy to one day is acceptable) and find the ones which are falling behind. Since several individuals are required to complete each project each step has an average value (based on historical data.)
The following is a short narrative:
1. Step 1 is scheduled for 1/5/05 and the task is not started untill 1/7/05. This is not acceptable. There is a 1 day window. I need to flag this record (via report) if the start date exceeds the schedule date by more than 1 day. If a start date has been entered this record does not need flagged (regardless of the alloted time).
2. Step 2 is based on the amount of time alloted to complete the task once started. If the task takes more than 2 days the project needs to be included in the query for the report. As above, if the date is entered the record is not needed since there is no need to try to determine the when the project will start.
3. Step 3 measures the number of days from the project completion untill the product is sent to the central office. If the time exceeds 2 days the record needs to be included in the dataset. Again, once a date is entered in the received field there is no need to include the record.
There are a couple more steps but they follow the same criteria as the first three.
I have not been able to figure out how to get these requirements entered into the query design view.
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Sep 19, 2005
This is the table structure that I use:
CAR TABLE
==========
Car_Id
Car_Tag_Number
CLIENT TABLE
============
Client_Id
Client_Name
CLIENT-CAR TABLE
=================
Car_Client_Id
Car_Id
Client _Id
ORDER TABLE
============
Order_Id
Car_Client_Id
Order_Date
Payment_Date
Payment_Amount
ORDER-DETAILS TABLE
=====================
Order_Detail_Line_Number
Order_Id
Item_Id
Order_Detail_Price
Order_Detail_Qty
The query I'm trying to get is: Who owes me money for the service and How much.
Each car had several treatments in the past and some have missed a payment or I didn't notice and just issued a new order.
I need a query that runs through the entire database, does a summary of all the amount owed to me per Car, and then deducts the total payments made per Car. If the balance is > than Zero,. Show me that car and the bottom line amount.
Please let me know if you can help with this.
-Alon
alon@wsco.com
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Dec 14, 2005
Hi guys, long time surfer, first time poster here :)
We use a prehistoric Process Plant design software package, and it stores all its information in Oracle 8i.
A report I need to pull takes data from a stack of tables, each with a unique number.
PDTABLE_113 contains a list of models, each model having a unique PARTITION_NO.
Every PARTITION_NO entry has a matching table called PDTABLE_21_XXXX where XXXX is the PARTITION_NO of the model. Each PDTABLE_21_XXXX has a row for every piece of equipment in the relevant model.
PDTABLE_21, for argument sake, has the columns EQUIPMENT_ID, EQUIPMENT_DESCRIPTION, and EQUIPMENT_STATUS.
Is there some way to query the database so I get something that looks kinda like this:
MODEL_NO=====PARTITION_NO=====EQUIPMENT_ID===etc..
A1A1M01======1516=============XYZ-110-A=====etc..
A1A1M01======1516=============XYZ-111-A=====etc..
A1A2M01======1517=============ABC-122-A=====etc..
A1A2M01======1517=============ABC-123-A=====etc..
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Aug 31, 2006
Hello, this is kinda complicated to explain so Ill try to break it down.
I have a table with the following sample data
SerialNumber DateReceived Measured Level
0000-0024 25/08/2006 11:31 84
0000-0024 25/08/2006 12:59 84
0000-0024 25/08/2006 15:05 84
0000-0021 25/08/2006 10:08 32
0000-0021 25/08/2006 17:19 32
0000-0024 24/08/2006 09:45 88
0000-0024 24/08/2006 16:06 88
0000-0021 24/08/2006 13:09 36
etc
this shows that I can have multiple entries in a day for a particular serial number.
I need to select ONLY ONE serial number and corresponding data for each day (or week).
I tried to format the date to remove the time and then select the distinct date (so 1 record a day for each serial was displayed), this worked.
BUT
I could not link it successfully to other tables because I had to format the corresponding match date to avoid a type mismatch thus invalidating what i was doing by selecting the distinct record.
Here is the original query i was using that selected a range of dates (which included multiple dates in a single day with a single serial).
SELECT TBLRemoteUnitInfo.TankSize, TBLRemoteUnitInfo.TankName, * FROM TBLRemoteUnitRequests, TBLRemoteUnitInfo WHERE (TBLRemoteUnitRequests.RemoteFeildUnitID = TBLRemoteUnitInfo.RemoteFeildUnitID) AND (TBLRemoteUnitRequests.SerialNumber=:SerialNumber) AND (TBLRemoteUnitRequests.DateReceived BETWEEN :Datestart AND :Dateend)
ORDER BY TBLRemoteUnitRequests.UnitRequestID';
how can i take a sample of the range of dates (ie 1 a day/week or month), i assume i need to create a filtered table via query first then query that table.
Its killing me!
if i am being unclear please let me know and ill try to clarify
Dan
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Feb 6, 2007
Hi
I have come to a dead end with my query. Any help would be really appreciated.
I have a query which i have written:
SELECT TblBurnleyWwTw.MetricID
FROM TblBurnleyWwTw
WHERE (((TblBurnleyWwTw.[Data Source])="OMS")) OR (((TblBurnleyWwTw.TAGFunction)="CHP"))
GROUP BY TblBurnleyWwTw.MetricID, TblBurnleyWwTw.[Metric Required], TblBurnleyWwTw.CALCULATIONS, TblBurnleyWwTw.PIPointSource, TblBurnleyWwTw.PILoc1, TblBurnleyWwTw.[High Level KPI]
HAVING (((TblBurnleyWwTw.MetricID) Like "130*") AND ((TblBurnleyWwTw.[Metric Required])="-1") AND ((TblBurnleyWwTw.PIPointSource)<>"L"));
This retreives all codes relating to what i want. The problem is, I need this data to try and match within another column of calculations E.g. Data retreived from query I have may be 13001, 13002, 13003. What I would like to do with this data is to lookup in a calculations column if any of the above data matches to bring back the metric ID which is realted to it?
Hope i have stated this clearly enough for anyone to understand???
As i say any help or recommednations for a solution would be really appreciated
Andrew
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Mar 29, 2007
SELECT [UK Table].[Business Name], [UK Table].[Business Type], [UK Table].Address, [UK Table].City, [UK Table].Country, [UK Table].[Telephone Number], [UK Table].[Website Address], [UK Table].[Email Address]
FROM [UK Table]
WHERE ((([UK Table].[Business Name]) Like [Forms]![frmNz]![txtBusinessName] & '*' Or [Forms]![frmNz]![txtBusinessName] Is Null) AND (([UK Table].[Business Type]) Like [Forms]![frmNz]![txtBusinessType] & '*' Or [Forms]![frmNz]![txtBusinessType] Is Null) AND (([UK Table].Address) Like [Forms]![frmNz]![txtAddress] & '*' Or [Forms]![frmNz]![txtAddress] Is Null) AND (([UK Table].City) Like [Forms]![frmNz]![txtCity] & '*' Or [Forms]![frmNz]![txtCity] Is Null) AND (([UK Table].Country) Like [Forms]![frmNz]![txtCountry] & '*' Or [Forms]![frmNz]![txtCountry] Is Null) AND (([UK Table].[Telephone Number]) Like [Forms]![frmNz]![txtTelephoneNumber] & '*' Or [Forms]![frmNz]![txtTelephoneNumber] Is Null) AND (([UK Table].[Website Address]) Like [Forms]![frmNz]![txtWebsiteAddress] & '*' Or [Forms]![frmNz]![txtWebsiteAddress] Is Null) AND (([UK Table].[Email Address]) Like [Forms]![frmNz]![txtEmailAddress] & '*' Or [Forms]![frmNz]![txtEmailAddress] Is Null));
What is wrong? I have attached the database. The form frmNz is what I want to work. I should be able to enter company information into at least one field, allowing me to retrieve the specific company data from the UK Table in the subform.
Gurdip.
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Jun 28, 2007
I have three tables called, Clients basic details, Episode and Modality. There are some 56 fields in these tables. Once a month I run a query on these tables. The data is then uploaded to another site via the internet.
I have now been asked to collect data into another table called TOPS which has some 23 new fields in it.
The problem I have is, they want none of the TOPS data to be on the same line as the Modality Data. For instance, there are 79 fields in the query which must conform to certain parameters before the data can successfully uploaded, the query must show lines of data for all the 79 fields, but if any line has TOPS information the line cannot have Modality information in it and vice versa. I think some of the data that would be collected will be duplicate, i.e. from the episode and clients basic details tables.
The query must show all 79 field headings. Any line of Data in the query result that has data from the Modality table and data from the TOPS table can only show the returned data from one of these tables, the values from the other table must be left blank and vice versa.
For Instance say From the clients details table we show the clients name, from the episode table we show the number of children he has, from the Modality table we show he has structured intervention, we then must show blank records from the TOPS table.
Then on another line the query must pick up the data from the TOPS table, episode table and clients basic details table and leave the Modality table fields blank.
A lot of the info from the Clients and episode table will be duplicated but on the different lines.
Any Help would be greatly appreciated
Barry
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Jul 24, 2007
I am trying to create ranges in data in order to create a graph. I have the following IIf statement that access says is too complex and also Im getting an error saying that it is too long to edit so does anyone have any ideas how to do this with out these problems. I need to get to $25000 $30000 in increments of $1000.
IIf([Actual$/Mile]<1000,"$0 to $1000",IIf([Actual$/Mile]>=1000 AND [Actual$/Mile]<2000,"$1000 to $2000",IIf([Actual$/Mile]>=2000 AND [Actual$/Mile]<3000,"$2000 to $3000",IIf([Actual$/Mile]>=3000 AND [Actual$/Mile]<4000,"$3000 to $4000",IIf([Actual$/Mile]>=4000 AND [Actual$/Mile]<5000,"$4000 to $5000",IIf([Actual$/Mile]>=5000 AND [Actual$/Mile]<6000,"$5000 to $6000",IIf([Actual$/Mile]>=6000 AND [Actual$/Mile]<7000,"$6000 to $7000",IIf([Actual$/Mile]>=7000 AND [Actual$/Mile]<8000,"$7000 to $8000",IIf([Actual$/Mile]>=8000 AND [Actual$/Mile]<9000,"$8000 to $9000",IIf([Actual$/Mile]>=9000 AND [Actual$/Mile]<10000,"$9000 to $10000",IIf([Actual$/Mile]>=11000 AND [Actual$/Mile]<12000,"$11000 to $12000",IIf([Actual$/Mile]>=12000 AND [Actual$/Mile]<13000,"$12000 to $13000",IIf([Actual$/Mile]>=12000 AND [Actual$/Mile]<13000,"$12000 to $13000",IIf([Actual$/Mile]>=13000 AND [Actual$/Mile]<14000,"$13000 to $14000",0
))))))))))))))
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Oct 10, 2007
Hello everyone!
i hope someone can help me with either:
1. writing a query to get the results needed (will explain below)
2. write VBA to be used in query to get the results needed
3. or change table(s) to be able to obtain the data in all areas to get the results needed.
The result needed:
How can I get the result of ONLY when there's an exact match of the combinations and not all combinations of the matches?
I have a GuitarOptionDetails and it's linked (LEFT OUT JOIN) to a ProgramCodes.
so the basic result here is displaying correctly. it's showing everything in my GuitarOptionDetails and only where there's matches from the ProgramCodes. Linked on Guitar and Option as these fields are in both sides. The ProgramCodes has the "Code" for the guitar and guitar / option combinations.
Issue, and why I'm seeking help ... i need to somehow change that so it will only show the set of results where the combinations matches.
example
here's the "raw" data from ProgramCodes table
GuitarOptionCodeComboID
AE185185RR1
AE185186RHT1
AE185187RT1
AE18538185RR2
AE18538186RHT2
AE18538187RT382
AE185BB185RR3
AE185BB186RHT3
AE185BB188RT-B3
AE18538185RR4
AE18538186RHT4
AE18538188RT38B4
AE185BB185RR4
AE185BB186RHT4
AE185BB188RT38B4
GuitarOptionDetails is showing the Codes for ComboID's 2, 3, and 4 because an invoice for AE185 has BOTH 38 and BB. Again, the basic LEFT OUTER JOIN query is showing all the Codes for AE185 where there's 38 or BB.
But instead, i need the result to show only the ComboID 4 Codes and not to repeat the same Codes for the ComboID 4 Codes.
I truly hope I made sense and there's a solution for this. I have no idea how to look it up to see if there's any previous posting for this or something like this, etc ...
Thank you in advance!
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Oct 18, 2005
Hi...
I have a query that when I run it normally (just click on it) then it runs fine. (It is a union query, getting it's data from 8 other queries (who has their dependancies)
But when I want to run a report from it, Access gives me an error saying "query is too complex".
I am flattered, but I would prefer access to work than say I write stuff that is too complex for it. :cool:
Any ideas?
I am confused by the fact that it runs when I double click the query, but the report bugs it out.
-Reenen
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Jul 19, 2005
I need to sort my query in a rather complicated way, and haven't been able to get the examples I've found on here to work.
I have the following fields
[Category]
[Name]
[Page]
Here is what I need.
Where [Category] = "Table of Contents"
Sort by [Name], Then by [Page] Descending
Else
Sort by [Name], Then by [Page] Ascending
All records will be queried at the same time, so "Table of Contents" categories will be included in the same query as other records, but need a different sort order. I know this is stupid, but leave it to government to impose some nonsensical rule on you.
Is there a way to do this?
Thanks,
Doc
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Nov 10, 2005
Hi All
I'm hoping somebody out there might be able to point me in the right direction for solving this problem.
Im developing a hire stock control database and have a table that contains all the order reference numbers and in and out dates.
What i am trying to do is structure a query that searches for all instances of a shipping out/in date that fall within date values already stored in the source table.
e.g. Table values
Out .................In
1/11/05............10/11/05
3/11/05............5/11/05
Query Values
Out..................In
25/10/05............2/11/05
In this instance only the first record in the table should be found.
Many thanks for help in advance
Simon
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Feb 15, 2006
I need to create a query based on the following 3 tables.
table PA0001 has the following entries (first line is the header data)
EmployeeNumber - ContractType0001
1234 - 1
1235 - 2
1236 - 1
1237 - 1
1238 - 2
1239 - 3
1240 - 2
PA0016 has the following entries:
EmployeeNumber - ContractType0016
1234 - 11
1235 - 12
1236 - 13
1237 - 11
1238 - 11
1239 - 13
1240 - 12
There is a mapping table called, lets say tblMappingTable which has the following fields:
Contract0001 - Contract0016
1 - 11
2 - 12
3 - 13
Basically I need to write a query which interrogates all the records PA0001 checks the mapping table and gives me all the records in PA0016 which do not have the expected mapping result.
So based on the above data I would expect it to return only the non-matched data, which will be:
EmployeeNumber - ContractType0001 - ContractType0016
1236 - 1 - 13
1238 - 2 - 11
I would probably need to do another query which does the exact same thing but the other way around. It would need to interrogate all the records from PA0016 and using the mapping table check the records in PA0001. In my example above I would get the exact same result, but I suspect with large amounts of data, I would get different results, especially if the number of records were not the same in both tables.
I suspect I would need to write some SQL code or VB code to extract the above.
If one of you kind folk could give me some basic pointers that would be great.
Thanks,
Evan
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Jun 13, 2006
Hi ,
I have two queries . one to list the data for the current month and the for the pervious month which I used to get a union query. From the union query I created another query which I had put in the report_open as a query def.
It works perfectly well on small databases upto 50 mb but when tested with 70mb databases ,report tabkes 30 minutes to execute and also throws the error"query is too complex"
please advise how I can avoid this error and also speed up the report.
Thanks in advance.
the code under report_open looks like this
Dim MyWorkspace As WorkSpace, MyDB As Database, MyQuery As QueryDef
Dim MySet As Recordset
Dim psSql As String
Dim inputno As Integer
Set MyWorkspace = DBEngine.Workspaces(0)
Set MyDB = MyWorkspace.Databases(0)
inputno = store
psSql = "SELECT DISTINCTROW QryRepCMISUnionLargeMovements.Customer_Name,"
psSql = psSql & " QryRepCMISUnionLargeMovements.CUST_ID, QryRepCMISUnionLargeMovements.CRG_CODE,"
psSql = psSql & " QryRepCMISUnionLargeMovements.CurrLimits1, QryRepCMISUnionLargeMovements.PrevLimits1,"
psSql = psSql & " QryRepCMISUnionLargeMovements.Lim1Var AS Lim1Var11, QryRepCMISUnionLargeMovements.CurrLimits2,"
psSql = psSql & " QryRepCMISUnionLargeMovements.PrevLimits2, QryRepCMISUnionLargeMovements.Lim2Var AS Lim2Var11,"
psSql = psSql & " QryRepCMISUnionLargeMovements.Input_Section"
psSql = psSql & " FROM QryRepCMISUnionLargeMovements;"
MyDB.QueryDefs("a").SQL = psSql
Set MyQuery = MyDB.QueryDefs("a")
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Jun 20, 2006
Hi everyone,
OK this is a pretty big question, but here it is....
I am not quite sure that a query is the best thing to use in this case, but I think it might be possible. Here is what I need to do: I have a table with information about oil well production. In this table the production of each oil well is recorded once a month (Barels of Oil, Water, and amount of Gas produced, and the number of days that the well produced in that month). This table ranges in dates from 1986 to 2006 and has records every month in that time span. You can see a sample of how the design of this table is in the attachment (Table: [Well Data]).
What I need to do is have a query look at this main table and create another table with some calculated fields. This new table will have only 1 record for each well. You can see a sample of the table that needs to be created in the attachment (Table: [New Table]). In this table, the first 8 columns are not calculated at all, they are just recorded from the main table. The next columns are calculated. As you can see in the attached preview, the query needs to find the first 180 days (6 months) that a well is producing and sum the oil, gas, and water in that time. It also has to do this for the first 365 days (12 months). Then it has to record the earliest date that a well has in the [Well Start Date] column and the latest date a well has [Well End Date]. And last, it has to determine how many total days the well was producing (Subtract [Well End Date] - [Well Start Date]).
I know this is a lot to comprehend, so please ask questions if you don't understand me. I really appreciate your help!!
Thanks,
Chris
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Aug 26, 2006
I have an Access 2002 table with contract_start and contract_end dates, plus annual_payment and payment_frequency (in months i.e. 0 (net 30 days), 3 (quarterly), 6 (half-yearly) and 12 (annually).
I need to extract a query that will tell me when the payments are due by working back to the start_date and calculating if a payment is due in the next, say, 30 days based upon the payment schedule and up to contract_end date.
Contracts can last for five years so the start_date could be up to five years ago.
In this way I can issue a report to identify what invoices need raising for the coming month.
Many thanks :) :confused:
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Sep 11, 2006
Trying to do this sort of query is beyond my comprehension of the software, so hopefully I can get help here.
What I am trying to do is add a total of a certain field together, while not adding the total of another field together. I hope that makes sense.
Anyway, here's an example:
Family: Sum of Duration: Years: Total Birds per Hour:
Tyrannidae 10 1999 0.1
Charadriidae 107.35 1996 26.967
Charadriidae 175.05 1997 45.29
Rallidae 34 1995 46.15
What I am trying to accomplish is that I want to add together the Total Birds per Hour field, without having the duration sum together. What has been happening is that when I sum TBpH, Duration sums, also. Yes, I know I have it as sum of duration, but the point is that has -already- been summed and therefore does not need to be summed again.
Basically, we are trying to see how many birds appear per hour within each year. However, our Duration totals cannot exceed a certain amount per year. Say, we can only get 600 hours in the year of 1997, but instead I end up getting something like 7000 hours because each entry in the family "Charadriidae" gets summed together when it should not.
What was explained to me was that, when we are summing the durations together, only one duration entry at a specific date should be added together. Here is what we believe is happening:
Date: Duration: Species:
199534B 5.5 Ruddy Duck
199534B 5.5 American Avocet
Theoretically, as a total duration for the date "199534B", we should only be getting 5.5, because both of those birds were spotted during a 5.5 hour period, not an 11 hour period if you were to sum those up.
I know that sounds complicated, and I'll try to explain more later. But, are there any suggestions on how I should go about this?
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Feb 2, 2007
Hi peeps,
I'm putting my very first steps into the world of access while learning things on my own. I know already how to create and use a parameter query, but I wouldn't have a clue how to apply it on the follwing illustrative example, a table with 3 fields and 4 entries:
ARTIST ----- TITLE ----- VERSION
Moby ----- Lift Me Up -----
Moby vs Fatboy Slim ----- Lift Me Right Here ----- Bootleg Mix
Fatboy Slim ----- Rockafeller Skank
Roger Sanchez ----- Another Chance ----- Moby's Club Remix
What I want, is to make a query that asks a user for a musician and returns all tracks in which he is involved (ie. the tracks he made himself + all remixes he did under that alias). Thus, in the case of "Moby" the query should return the 1st, 2nd ànd the 4th row from my table and display all three fields.
Tricky thing (for me at least) is to extract the information from both the 1st ànd the 3rd field, while being able to handle other strings in the same cell.
This might me a newbie question and it's been probably asked before, but at first sight I didn't find it in the topics list.
Should be easy to explain for many of you!
Thanks,
Afterburn
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May 8, 2007
hi all,
I have a question hoping that someone can provide assistance. I have a huge table that consist of almost 10,000 records. The three columns that I need to look at are as follows:
computer_serial, change_type, call_date.
change_type can be: add, move, remove
i need to show all records with change_types = remove. Only if remove is the latest status.
for example if I have a computer that has two records one remove and one add, but add has call_date bigger than remove, then i don't want to show it in a query. thanks.
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Sep 4, 2007
ok guys-
I am struggling here. I've been trying to figure this out, got a small portion of it completed- run the query and I run out of Temp disk space- so it never gives results.
Basically- I have all the property data in one table. The goal is to find the how a property listed for sale compares to all those properties similar to it have sold for in the past x amount of months. I want to compare it to all the other houses in the same area (these are Sold status). The Sold houses have to have the same number of levels (stories), be in the same area (Area) of town, have sold in the last x amount of months (eventually I will compare the houses that have sold int eh past 3, 6, 9, and 12 month time frames), and have a square footage range of +/- 15%.
For example-
There's a house for sale (Active status) for $200,000. It is 2,000 square feet, built in 1995, has 1 level, and is in Area 510. I want to compare it to all the other houses in the same area, similar to it- which means, +/- 15% of the Square Footage (1700-2300), in Areas 510, has only 1 level, and was built in +/- 10 years (1985-2005). I then need to take the average $/sqft of THOSE houses, and compare it to my one active house. Let's say there's 10 houses matching that description, and the Avg $/sf comes out to $240,000 on average for those 10 houses.
So- the final result will be:
123 Main St Active 2,000sf 1995 1 (level) 510 (Area) $200,000 $240,000
And then a calculation of Asking Price divided by the Avg Sold Price of Similar houses which, = 83.3%
All the data/fields are in one table. I have been trying to work nested queries- but, I've only got 2 or 3 specs in, and it runs out of space on my temp disc. So, I believe I'm building it wrong. Can someone please help me out to figure out how to accomplish this? I've got more to add onto it- but- I think if I can get this part figured out, I can do the rest on my own...
Thanks a ton guys!
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