Improving Existing Database
Jun 1, 2007
Hi,
I have been assigned to "improve" an Access database that has been created by a user. However, i do not know where to start. One of the things I have to do is write a stored procedure so that when the user runs the queries, the user is prompted to enter the criteria (for instance, a data range) to narrow down the number of records retrieved from the SQL backend. I have been told to improve the database. However, I do not have any experience in this and don't know how to start. The database has been created by a user so there's obviously lots of room for improvement. For instance, there are a million queries and I don't think that many are really needed. The goal is to minimize the size of the database. Can someone please guide me as to how I should go about starting to improve this database?
Thanks.
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Jan 17, 2007
Hello
I have a database which i am constantly updating and improving. I have a few friends who use the database in a current form. If i made an update say to a form or to some of the coding to make the DB more efficent, how can i update the dBs my friends are using without damaging or changing the existing data, or migrating it to the new design.
I.e going from version 1 to version 1.1
Any advise would be great?
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Jun 17, 2005
is there anyway to view records in an access database from an existing database? i have 3 databases that perform basically the same things, but are for different people...
i would like to create a database that can report all this information in one spot, instead of creating reports in every database. if this is not possible, i'll probably go the asp.net route, but this seems to be an easier way, if it is possible
what do u think?
*j
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Jun 29, 2006
We are a SME with a 4 year old access database which is in need of updating with new tabs and various other new spec. We are struggling to find an access programmer who is right for this project.
Does anyone know someone who could have a look at this project??
We are in the Greater Manchester area at present but will be rolling out on a regional and then national scale with this in the next 12-18 months
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Dec 13, 2007
I've been racking my brain the last couple of days trying to figure out how to solve this problem, and I believe I've reached the end of my rope. I have a feeling that this isn't very difficult to a more savvy Access person, but I am at a loss.
Here's the situation. I have received a fairly large DB containing CCTV data for sanitary sewers. There are primarily two tables I'm dealing with, one lists a number (auto-number) for each pipe that was televised. Simple enough. The other uses this legacy number to show all deformities or service leads within a particular length of pipe. For example, for run X, there may be 7 rows in the table with X as the ID, one for each service lead along that length of pipe (I hope this is making sense :()
Ultimately, we need to tie this database into our GIS theme. To do this, I will need to add to the PipeID number from our GIS theme to the access table. What I've done so far is to create a new table in the DB with the number for each pipe televised, and I've manually added the corresponding PipeID number from the GIS in the second column. What I'm hoping to do is add a new column to my occurrence table so that for each occurrence X, I can add the GIS PipeID number. Perhaps this would make more sense:
Run # PipeID
1 S143
1 S143
1 S143
1 S143
2 S231
2 S231
2 S231
2 S231
3 S543
3 S543
3 S543
I've gone ahead and created the relationship between the newly created table and the existing table based on that auto-number field, and I've made the new PipeID column a combo box. This shows all of my PipeID numbers, which is a good thing. I'm hoping there's a way for it to automatically recognize the auto-number field and populate the PipeID field accordingly.
Have you ever known what you want to say, but not quite understood how to say it? That's kind of how I feel about this question, and I do apologize if I've made no sense. But if I have, and anyone has any suggestions for me, they would be greatly appreciated.
Cheers,
Azimuth
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Apr 28, 2012
We have a shared personnel access database for our department. Another department is wanting to use the same database. Is there a way to go about deleting all the info and making a template to give the other dept to use?
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Dec 8, 2011
I was tasked by my CFO yesterday to add a new element to my existing database. I will try to keep what I am trying to do simple.
Basically we do finance for multiple projects. each project has employers.
My database records these employers names, SSN, dates registered, program they are in, and a few other elements as well.
What I have been tasked to do is create a new table with the project managers in that table. this way in a query or report i can pull "sally sue's" projects or whoever I needed to. There are many PM's who have more than one project.
Here is what I have for relationships:
On the Project Managers table I have a PK for ID and then the PM Name as a second field. the ID field is linked to the Programs table which has a PM ID and Program name
The Program table is also related to the employer table which has all of the employers and their info. the relation between the two tables is the Program Name.
So when I run a query or report my goal is to be able to pick any project manager and get the associated count of employers under all of that projects managers programs. I have gotten errors when running queries. Perhaps I have the relationships set up wrong?
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Mar 30, 2007
I have an existing contact information database which consists of a number of tables, the main table has a primary key which is currently set to NUMBER.
There is a relationship between it and 2 other tables via that key (ContactID).
I would now like to change the primary key (ContactID) to AUTONUMBER, so that any new records added, have a number assigned automatically. I also need any newly created primary key number to be used in the child tables created as a result.
Is this possible ? (without renumbering my existing tables/records)
many thanks
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Aug 21, 2013
Using access 2010; anyway to create an er diagram from an existing database? I have inherited a fairly large database and need to make changes to some field properties and need to find out where these fields are located. I know I can go into tools and run the documenter but doesn't give me an easy format to look at.
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Jan 21, 2014
I have table1 in my (Access 2010) database that has exising records. I have another table2 that after I run a query, it first deletes the data in table 2, then imports new records into that table. I run the import into table 2 on a semi regular basis but have yet to copy those records into table 1.
With that said, using either a query or VB, how do I copy all the (new) records from table 2 into table 1 without altering any records that already exist in table1?
BTW, Table 1 has a main form with a subform within it
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Oct 25, 2014
I have to design 2 databases base on some data that was given by my instructor but I feel like I'm missing something on both specially the 2nd database. I have attached my work so far as well as the instructions and the existing data..
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Feb 28, 2014
How can I overwrite the existing Access database with another Access database without the need for the end user to get involved in the process.
I want the code to copy a new mdb file over the database I am using (!) and then automatically start the new mdb file...
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Nov 4, 2013
I am trying to add a new email field to my existing database of 900 employees. I have imported an excel worksheet of email addresses into a new table that has lastname, firstname, employee#, email. The primary key on the new table is email. The primary key on the employee table is employee#, and there is a new field titled email.
The email field in both tables are text fields. In running an append query, it either adds 900 to 27000 additional fields of email only or it says cannot complete because of key code violations. On the join properties I have clicked on #3 all records from source to only equal fields of destination.
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Oct 31, 2013
Adding a field in Access 2007.
I am adding a exisiting field which is already available on a Global Table and would like to add it on a local table within the same database. Also bearing in mind the db contains main objects - Tables/Queries/Sharepoint lists/forms/reports
Whats the process in doing this? Once added how does the data get populated?
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Apr 30, 2013
Basically it's trying to take all the files in a given directory and add them into a existing database.
I have a database called Permit. the database has a field called "SEAL" and they will be creating an additional field "SCART" to hold the contents of the file that exist in the directory. Each image file, in directory, is named the same as a unique record in Permit.
example:
Permit-SC might have unique record 532442
An image file would be name 532442.
If the image file matches a record in Permit the image should be added to permit in a field called "SCART". At this point I'm not certain if I want a link or the actual image included in the record. since there's a possibility of including the permit file on the website it might be cleaner to have it included.
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Nov 8, 2013
I'm altering a database to have certain fields be recorded monthly.For example: instead of a client's file having "Total X Purchased" it would now be "Total X Purchased - Jan", "Total X Purchaed - Feb".
I want to spin the monthlies out of the master clients table & in to ex. tbl_clientsJan, tbl_clientsFeb, etc. but still have them linked; & have a "Totals" table that aggregates data from all of the tables (adds them up).
I have an existing form, & I was thinking of just creating tabs for the months & subforms in each with their sources as the month tables, & removing the fields that don't change month-to-month (e.g. client name), with relationships between them. I would start by copying all of the master table data in to the month tables & allowing edits from there.
the company doesn't track when the transactions occurred; I'm unable to group them along those lines.I'm new to Access & don't want to make a mistake.
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Apr 8, 2015
I was asked to create a table within an existing database using these SQL commands;
CREATE TABLE Vehicle (reg_no TEXT(10)
CONSTRAINT VehicleKey PRIMARY KEY,
type TEXT(10),
purchase_date DATETIME,
last_service_date DATETIME, mileage_at_last_service INTEGER);
I was told to save the query and check the new table had the required records in it.
I had huge problems when I tried to save the query and kept getting error messages like: "query must have at least one destination field" and "syntax error in field destination". This was strange since I was sure I typed the query exactly as it had been written on the worksheet.
Having not changed the SQL command at all it eventually worked when I skipped the 'save query" stage and just went to the "run query" stage. I still don't know why it actually worked in the end and why I kept getting error messages.By running the query am I supposed to just click on "RUN" or can I check the information first by looking at datasheet view?
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Dec 6, 2013
I am attempting to normalize an existing database. I've created the table structures necessary and now I'm designing a query that will update the new field in my primary table: "LabelBaseProduct" with the primary key from my new table: "tblBaseProduct" where the old field from my primary table: "tblLabels.BaseProduct" equals the description field from my new table: "tblBaseProduct.BaseProductDesc".
A visual of my tables:
tblLabels (Main table)
- LabelID
- BaseProduct (old field with text data)
- LabelBaseProduct (new field, needs to be updated with PK from tblBaseProduct)
tblBaseProduct (new table)
- BaseProductID (PK and FK to tblLabels)
- BaseProductDesc (Field that should be matched to tblLabels.BaseProduct)
I tried to design a query using design view of the query design and this is what I have:
Code:
UPDATE tblLabels, tblBaseProduct
SET tblLabels.LabelBaseProduct = [baseProductID]
WHERE (((tblLabels.BaseProduct)=[tblBaseProduct].[BaseProductDesc]));
When I attemted to run the query it told me that it was going to updated over a million records. I only have just short of 2k records in my database.
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Apr 8, 2015
I have a client that is using a split database. I am working on an update to the program and need to transfer a table to the backend that has the correct structure and information included in it. My thoughts are to make a one time use program that transfers the table to the backend. I have seen DoCmd.TransferDatabase and DoCmd.CopyObject as possible ways to go.
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Apr 23, 2014
-Microsoft Access 2010
-Existing Access Database contains tables with 1-2 million records
I would like to add a field[dol] to an existing table[rei]. I need this new field[rei].[dol] to be populated with existing data from another table[main] based on the associated field[main].[account1] or [main].[account2] or [main].[account3].
Table1[main]
...account1
...account2
...account3
...dol
[code]...
In the [main] table. There is always data in [dol]. But there is NOT always data in the [account] fields. Sometimes there is multiple account numbers per [dol] but not always.
Customers will ALWAYS have at least 1 [account] number and [dol]. Some will have multiple [account] numbers and [dol]. Sometimes these [account] numbers are the same in multiple fields[account1] [account2] [account3].I just need to do a lookup or something to find the [account#] and pull in its [dol] from the [main] table and populate it in [rei].[dol].
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Nov 9, 2006
Hi all,
I am new to this forum and a rookie when it comes to Access. I inherited a pretty complex db and from my experience from other forums as well as trouble coming up with accurate queries I have come to the conclusion that normalizing the db is the only solution.
However, I really need help with this process.
I have attached a simplified version of my database with only the tables (all the #s and data are fake).
Basically what this db does is track lease hold improvements for various groups (ADT and RWA) and the tables are split up to reflect the 2 groups.
I will focus only on the ADT tables as the RWA is basically the same thing (Dont worry about GSA and the other stuff). The main table in the db is the ADT_Detail which includes all sorts of data regarding "Projects". I will provide information on each field:
Project- Project numbers numbers are unique, but often have multiple DCNs (and there's not always a project number so that can cause a null value for primary keys).
DCN - Each DCN can have multiple projects associated with it
TO - Task order can be the same for everything
SiteCode - A number that identifies various locations, there is another table that lists all the site codes and pertinent info on each.
CostBase - A currency figure on the original cost of each Project
Useful - length of useful life for each project
Complete-Expense - yes/no field
Complete-Cap - yes/no field
WIP- yes/no field
(any project can have 1 or multiple yes for these)
InServ Date - Date the project is placed in service
Start Amort Date - Date amortization starts on the project
date add LHI - the date the project is entered into the db
Fund- a number where the project is expensed
Post Fund - If a fundis not available for the project this is what is used by the DCN and is usually the more important one
Year- when the project begins
Post year - If a year is not available for the project this is what is used by the DCN and is usually the more important one
Deletion - yes/no box so that we can keep a track of what items we are deleting to compare with other periods
Deletion date - used to identify Quarter that the project was deleted
There is also a table labeled (ADT_Master) which contains other data for each project. This is pretty self explanatory when you look at the table.
Everything is also based on quarters when we ran queries to show additions, deletions, adjustments in certain quarters based on the quarters table.
This is probably more info than what is necessary but hopefully it will give you an idea of whats going on. Let me know if you need any further clarification and I will try my best to assist.
Thanks in advance.
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Aug 8, 2005
I have an inventory table and a repair table for computer equipment. The inventory table is already set and working with all the data I need.
In the repair table, I would like to just enter the ID number and have some of the information already stored in the inventory table automatically entered into the repair table as needed.
For example, computer 138 has repairs done to it. I would like to then go into the repair table to add a new entry, type in 138 and have the some of the data from inventory table (model, serial number, etc) transfer into the repair table.
Is this possible with Access?
I have only been able to do something with the lookup wizard, but that doesnt seem to work well.
Can anyone point me in the right direction?
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Feb 1, 2007
Hi There,
I am trying to open an Access database which was created a few years ago... When I open it to edit one of the forms I fail to see the forms etc that are in there.
Is there a hot key you hold down when opening the database to be able to open Access in full edit mode showing all forms queries etc
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Feb 14, 2007
Hi, Big Jim Here:
I was hoping you guys would have a recommendation. Do you know of a book or web site that offers workbook examples to help practice learning how to understand existing databases?
My biggest problem with databases has never been designing them but learning how to follow someone else's work. Some place to practice on this deficiency of mine would be great. Any thoughts?
Thanks in advance,
Big Jim
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May 15, 2007
To Whom It May Concern
I would like to know how can I insert a new row between an existing row in an Access Table
For example,
I want to insert a new row between line number 122 and 123. Do I need to get rid of the primary key or change it to Number. What I am doing now in order to have several topics group together on a report such as "Activities Topic" and a Date field for that topic. However, there are various topics under the Activities topic. Each new information that is being updated for this topic I have to reorder the number by the topic name in the Order field so that the date will be in chronoligal order in the report.
Is there a better way in do this?:confused:
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May 10, 2006
Hi
Can i save an SQL statement to an existing Query. what i would like to do is have a crosstab on fields that will be determined at runtime. so i would have the pivot on a field that is chosen at runtime. I can run a sub that will generate the correct SQL, i am just lost on how to save it to an existing query.
the full blown explanation of what i am try to do, is the following. i have a report which is going to use a cross tab. so i need to attach a query to the report. if i assign report.recordsource = SQL i get a message that a crosstab can't be attached to the report. but if i use a saved crosstab and i write report.recordsource = me.myCrosstabQry then it works. don't know why, but it does.
thanks in advance for your help,
sam
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