Analysis Database
Mar 18, 2006
Hi everyone,
I'm toying with the idea of designing a database to simplify a task I currently undertake at work (using excel) - comparing price movements in the shares of a certain company with the average movement of the share prices in the sector, and displaying any material discrepancies on a certain day in a report.
From my limited understanding of access I think I would need:
- "PriceData" Table, with the fields - date, share, price, dailymovement%
- "SectorData" Table, with the fields - date, sector, price, dailymovement%
- "Relationship" table, specifying the sector that relates to each fund
- A query which summarises the above, returning the date, share, and the two movement percents and then copies them into a temp table.
- A query/report which pulls out the relevent (material) descrepancies from this temp table and presents them in a nice format.
Is this possible and am I along the right lines?! Any input would be greatly appreciated!
Thanks,
Mat
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Sep 23, 2005
Hi Guys,
I have sort of problem - I'm trying to desing the database for one of the organisations.
The entities are: Family, Child, Referral, Voucher, Receipt, Provider, Activity.
That's ok so far. I've been asked to do the option for the new address of the Child - in case if they move to the new place and keep the old one as well.
Family table is the 'child table type' for the Child table - family can have more than one child, but one child can be part of only one family (one to many relationship).
I thought to make a seperate table 'tblAddress' and store all addresses in this table - then link them to the family - this however requires from me to have additional field for - for instance - second address, third address, which in case there was no change in address would remain empty value.
The other option - which obviously is absolutely waste of space is to add straight away additional address fields in the 'Family' table itself.
Don't you know of any other, more appropriate solution?
If you need more detail - I can send the copy of the database which I have created so far.
I would appreciate any help.
Thanks,
Scabro
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Sep 5, 2014
I work on a pre-created Access database, and the other day I was working on it, and was trying to export something to Excel to sort it and do some Pivot analysis.
Anyway, I must have pressed something, because now every time I open the database, rather than saying "record 1 of 20463" and showing the data from record 1, it shows "record 1 of 1" and all the data fields are blank. If I go to "Records" and "Show All Records" they'll all come up, but I don't want to have to do that every time, and as I import and export all the time, I'm worried that the next time I try it it'll mess up the years of data I have.
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Apr 6, 2005
I work for a train maintenance company and to keep track of the defects we use access. Our data is stored in tables (eg unit1) and each defect is assigned a fault code (eg TRD.99). These codes are then used to report to our customer where errors our occuring on the trains.
There are 17 categories of code defined by the 3 letters at the start and the specific problem is stated by the digits. I need a method of tabulating the codes by unit number and a total given in another column. To do this I need a code to count the number of times each three letter code appears in the column of each units table and place the value in the corresponding column in the overview table. I then need a code to add up the total faults for each unit like the sum function in an excel spreadsheet. The final table should look something like this
Unit NoBOGTRD
30010 21
30020 17
30031 17
30040 4
30050 5
30061 18
30070 3
30081 7
30090 4
30110 0
30120 2
TOTAL3 98
Any help will be greatly appreciated
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Aug 15, 2007
Is there an Add in for Microsoft access that will using a gui based method, run queries, set up automated reporting (task Scheduler) in an easy to administer method. Quest Toad has a new add in Toad for Data Analysis. I am looking for something similar for access. Right now I am doing this manually via creating macros, etc. But there really should be an easier way.
Thanks
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Dec 22, 2004
I am designing a database for my company that keeps track of new classes and new courses created. I have a form for each with the create a class form taking the course title from the courses table/created course from the create a course form.
Here's my dilemma. I want to use cascading combo boxes for class location, facility and room but I think my table structures and relationships may be incorrect.
Here is a list of my tables and their fields:
tblClass
ClassID (PK)
CourseID (FK)
InstructorID (FK)
StartDate
EndDate
StartTime
EndTime
ClassMin
ClassMax
Materials (yes/no)
MatNotes
EmpID (this is the ID of the employee who requested a class creation)
LocID
FacID
RoomID
LogID (Logistical Coordinator ID, if applicable)
Course
CourseID (PK)
CourseName
more...
Employee
EmpID (PK)
FName
LName
more...
Instructor
InstructorID (PK)
FName
LName
more...
Logistical
LogID (PK)
FName
LName
more...
Locations
LocID (PK)
Location
Facilities
FacID (PK)
Facility
LocID (FK)
Rooms
RoomID (PK)
Room
FacID (FK)
LocID (FK)
When I run a query with class, locations, facilities, and rooms no information shows up. If I run the query with the relationships between facility/room, facility/location and room/location removed (leaving the only relationships between class and these three) it works. Why is that? Shouldn't there be a 1-M relationship between Location, Facility and Room? Or, should there be a M-M relationship and I should create tables with each PK?
I apologize for the long post but this has become quite frustrating (despite the simple logistics).
Thanks!
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Mar 4, 2005
My database records order details for analysis. I have created a form to monitor individual trends in orders placed by my customers. As we supply bespoke items each customer has a list of products which they alone purchase, i.e we do not supply stock items, each item is specifically for one customer (they can then buy the items on a regular basis). The products are assigned to a customer in the products table.
The Analysis form I have created displays the customers name and two graphs. The first graph shows total sales each month, this graph updates as I navigate through the records (i.e. a different graph is loaded for each customer). The form also contains another graph, this is where the problem lies! This graph shows orders of the individual products, controlled by a drop down list containing all the products we supply. I need to limit this list to only show those products relevant to the current customer select on the form. (The products are assigned to a customer in my products table). Currently I achieve this by using a query which when the form is opened asks me to enter a customer ID, the drop down list is then limited to the products supplied to that customer.
What I would like is for the drop down list to update as I navigate through the records. i.e. when customer A is displayed show all the products assigned to customer A, when customer B is displayed show all the products assigned to customer B.
I’ve attached a snapshot of the form to help explain what I mean.
Thanks for any suggestions.
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Oct 16, 2012
I do some error analysis for debugging an Access DB. My question is are there some regulations or frameworks, which could support my work.
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Jun 19, 2013
I have a quality control database that has a QCEntry table that contains information about each sample the QC technician takes from production. This table has a one to many relationship with the TestResults table, where the tests performed on the sample and their results are stored.
QCEntry table is structured like
Code:
EntryID Product Lot Number Day Time
1 AB-500 121323 12/23 5:00
TestResults table is like
Code:
ResultID Entry ID TestName TestResult
1 1 Carbonblack 50
2 1 MFI 10
My question is: Is there a way modify large amounts of data like this using a query or some other method to look like this? Kind of denormalizing the tables?
Code:
Product Lot Number Day Time Carbonblack MFI
AB-500 12323 12/23 5:00 50 10
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Jul 22, 2013
I am attempting to create a metrics analysis table from another table. What I would like to do is copy the structure (only) from table 1 into a new table. Change all the fields in the new table to text (except for an ID field which would be an autonumber). Then run a seperate group by query against each column, counting the values in each group (i.e. first query would have two fields The grouped column and the column count.
Once I have these values I would like to concatenate them (with the count in parens) and then push these values back into the new table under the appropriate column.
My code does this. I basically loop through a recordset that runs to each column/field groups and counts and then Edits the new table with the concatenated data.
My first table is 170 fields and 38K records. The issue is that it's too much for Access to handle and it blows up (on field 123) Telling me the File is too large. The file does explode to 1G. Then I can shrink it back down to 67mb by running a repair and compact... and then run the the data for the rest of the fields in that table. When I compact again I get about 80Mb.
So now I have two tables, both with an ID field... so I try to link them together (via a make table query) and meld them into one table... but it keep running into that "File Too Large" issue.
How can I have two tables in a database file with a combined size of 80Mb, but when linked together are too large for the database file? Does it have something to do with having all text fields?
I looked up the limits to MS Access and the field count doesn't appear to be an issue since it's nowhere near 255... So what's the problem here?
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Dec 27, 2014
I have a table [Control Table] with the fields [Date signed] and [outcome] date signed is formatted as dd/mm/yyyy and the outcome field is a drop down with the options granted, not granted ect
I am looking for a way to present the data using specific date ranges.
I have found 2 possible avenues;
Dcount in a select query:
w/c 01/04/2014 GRANTED: DCount("[Date signed]","[control table]","[Date signed]>=#04/01/2014# And [Date signed] <=#04/06/2014# And [Outcome]='Granted'")
w/c 01/04/2014 Not GRANTED: DCount("[Date signed]","[control table]","[Date signed]>=#04/01/2014# And [Date signed] <=#04/06/2014# And [Outcome]='Not Granted' And [Reason not granted]='Assessed'")
w/c 01/04/2014 Discharged: DCount("[Date signed]","[control table]","[Date signed]>=#04/01/2014# And [Date signed] <=#04/06/2014# And [Reason not granted]='Discharged'")
etc...
But I would need to create the multiple queries 52 times each for the different count value per week
My 2nd option
I have looked at crosstab query, but I cant find a way for it to list the specific dates I need it to query e.g from
01/04/2014 - 06/04/2014
07/04/2014 - 13/04/2014
14/04/2014 - 20/04/2014
etc...
Any tips on Data analysis? I have been able to perform the task previously in excel using If statements but we are now moving to access.
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Aug 27, 2013
I have a larget transaction data set in access with Datetime column/filed.
I have been running pivot queries to excel to do analysis of the data but the datetime field is returning too many unique values for the pivot table to run.
What is the best way to reduce the datatime field to date only and where should this be done?
i.e. should I have a calculated field that trims datetime or should I set someohting up in Powerpivot?
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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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Oct 7, 2005
Hello All...
Well, I am facing one problem..in my application; I need to show all forms / reports name of other database( .mdb ) file without opening the other database physically. I tried a lot but didnt succeded. I tried with below code..
Set AcApl = New Access.Application
Call AcApl.OpenCurrentDatabase(strfolder, True)
Set AcProj = AcApl.CurrentProject
Set frm1 = AcProj.AllForms
intCount = frm1.Count
But here wen the second line AcApl.opencurrentdatabase get executed at that time the database get open physically, and i dont want that..So is there any other way around..If so..please please help me..
Thanks in advance..!!
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Aug 22, 2014
i have a database that runs updates from within itself.what i need is, this database to then open a another database run a update query, then close it.
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Sep 12, 2012
Database: Access 2007
I have designed a touchscreen input system using Visual Basic.net and this writes to an Access Database. Each Touchscreen has its database locally so it can still work even if there are Network problems.
Now what I would like to do is have all these local databases write to a central database say every minute but only write new records to the central database. The Central Database can either be Access or SQL.
What is the best way to do this?
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Jun 24, 2015
I have been working on a database for over a month now, and my boss just threw a monkey wrench in my work. I believed that the Metal Market Prices would be entered once a week in the current DB. My boss informs me today that he wants an employee to go in every morning and enter that days Price for Each Metal with respect to many different markets.
There is a total of 12 metals, and 5 markets. I need the data to be stored first by date, then by either market or metal, and lastly by which ever isn't used second (Either: date-market-metal, or date-metal-market). I think the Latter of the two methods makes the most sense. Is it possible for my current DB to lookup values from the Metals Database based on date-metal-market?
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Jul 7, 2005
I have a problem that seems to be happening on several users' databases and is causing a big problem. None of the databases is a shared database...they are all single-user databases on stand-alone computers. I have tried looking for help within previous posts, but all seem to be related to shared databases.
I am getting an error message: "The Microsoft Jet database engine stopped the process because you and another user are attempting to change the same data at the same time." The database cannot be opened, imported, repaired...nothing seems to work.
Again...these are NOT shared databases. I appreciate any help I can get. I created the database for all of the secretaries in our school district to keep up with absence data. It involves many tables, queries, forms and reports, and has generally worked well. However I am now seeing several that are getting similar errors as mentioned.
Thanks!
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Dec 25, 2005
I'm new to Access and VBA, for the record. What I need to do is copy a SQL database (table structures and records) and save it as a local Access database, so that the user can query and make any changes on the local file without editting the SQL database.
Looking around, it seems like the best option would be to use the TransferDatabase method with the acImport option. Does this sound reasonable, or can someone with more experience suggest a better way to go about it? Thanks.
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Aug 28, 2013
I am testing the security of my DB X on Acccess 2007. I could create a new database Y and linked to the database X. Unfortunately i could change the records on the tables. I don't want other DB that make connections to my DB to change my tables!
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Aug 29, 2005
Is it possible to access a table in one Database (Database A) from a separate Database (Database B) and if so how. I should clarify that this is an Access Database.
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Oct 24, 2013
I created a database with forms, querys, etc. Now I was thinking of creating a exe so everyone can use this database without having access to all the design functions.
the only problem I see about doing this is if we need to use the same database for different project, we need to always create a new exe for each project.
Is there a way to make a empty database exe with just the layout, querys etc but with no data on the tables and have a save, open and save as option. So we can have several projects using the same database?
I was thinking to create a VB code for the database to delete all data on the tables when the database is open.
and before closing the database exporting all the data to a txt file or something.
Then the next time someone opens the database goes to the main form which has a open bottom which imports the txt file into the tables.
This way we can have several txt file for several project and use always the same exe database.
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Nov 20, 2006
I am working on a database that will be an addition to an existing one on the company server. However, to make the overall layout not so complex and allow room for other additions in the future, I'd like to keep the databases separate. This will also ensure more efficiency, integrity and troubleshooting overall.
Does anyone know how this is done?
Thank you in advance for your help,
~Kilch :eek:
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Oct 2, 2007
The menu for make a MDE file is blanked out or grey’d out. The database is partly made using access 2000 then xp
Jabez
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Dec 21, 2013
I have a series of unrelated access databases and I would like to have one 'super menu' where i can click a button to go to different databases.
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May 24, 2005
I have a car dealership database and have a servicing section.
I want to create a form to service these vehicles.
The only vehicles which will be displayed on the from are the sold ones (because you cannot service a vehcile which hasnt been sold) which i have a query for.
I also want the form to display the customer who owns the car the service details (eg what they need), the parts availiable and the parts required for the service.
The calculations i need to make in this form are as follows
quantity needed (parts required table) - quantity in stock (purchasing customer parts table)
quantity needed (parts required table) * price (Parts Table) + labour (servicing table) = part/labour costs (servicing table)
http://pic18.picturetrail.com/VOL885/3178839/6480291/97832270.jpg
any suggestions on how to do this would be fantastic
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