Table Stucture
Aug 16, 2006
I am designing a database (just on paper at the moment). My knowledge of databases and access is of an okay standard but nothing more so feel free to point out my stupidity.
I have a problem with my first draft. Part of the database concerns itself with school pupils and mentors that at some point spend time teaching the pupils. The database needs to keep a record of the amount of time each mentor spends teaching and how much time each pupil has spent being taught.
Every time a Mentor teaches one or more pupils they fill out a form with their name, date, the details of the pupils that they taught and how long they spent with each pupil.
I originally had 3 tables:
Pupils(PupilID, Fistname, Surname, DOB)
Mentors(MentorID, Firstname, Surname)
Contact(MentorID, PupilID, TimeSpent, ContactDate)
I found what I think is a problem in that If I have MentorA and MentorB who together teach Pupil1 for 2 hours on the 25th November 2006 my Contacts table would look like this.
A, 1, 120, 2006-11-25
B, 1, 120, 2006-11-25
This does fine for recording how long each Mentor has worked:
MentorA - 120 min
MentorB - 120 min
However I have a duplication of - Pupil1, 120, 2006-11-25
When looking to see how long Pupil1 has spent being taught the data tells me 240 min. This is not correct. It is vital that the database can tell exactly how long each pupil is involved with a Mentor.
Does anyone have any ideas or suggestions.
View Replies
ADVERTISEMENT
Sep 10, 2007
Hello,
I'm having a hard time trying to figure out how I should go about designing the table structure for the hours tracking for the database I'm working on. Basically, I have a table with projects (tblProj) that I need to track the number of labor hours worked per month. The problem lies in the fact that each project could have varying time periods, anywhere from less than a year to more than a year and can start and end at any time of the year.
I was thinking of creating a second table (tblProjHours) to store the hours for the project but I'm not sure what the most efficient way of doing this would be. My idea was to create a table as follows:
tblProjHours
ProjHoursID (pk)
ProjID (fk)
BeginDate
EndDate
Month1
Month2
Month3, etc....
I would create a large number of fields/columns, something like Month1 to Month36 just to make sure I have enough months to enter in the hours. This is of course inefficient since some projects would be way shorter than the maximum allowed months set by the table structure and there is always the possibility of surpassing the maximum allowed months based on the table structure. I was wondering if someone had any better ideas on how I should pursue the design. Thanks in advance!
TheMach
View 2 Replies
View Related
Sep 29, 2013
How can I update (some columns) in a table from the same table based on a Criteria column in the same table.
View 2 Replies
View Related
Jun 28, 2013
I need to get x and y coordinates for each device, but the data has to get looked up from 2 other tables.
I have a table (called InstReclosers) that has device names. Each device is on a Section. I can go to another table (called InstSections) and look up what Node that particular section is tied to. Then I need to go to another table (called Nodes) to get the X and Y location for that particular node.
How I can go about getting this X and Y data into the InstReclosers table?
...in summary, InstReclosers has device name and section name. InstSections has section name and node name. Nodes has node name and XY coords. Need XY coords for each device in InstReclosers.
View 3 Replies
View Related
Jan 29, 2015
When I try to transfer (ctrl c + v) data from a table in Excel to a table in Access it loses format.
Exemple: $ 1.000,00 (Excel) become 1000 (Access).
I need to keep the format to make sure that the code works properly.
View 9 Replies
View Related
Nov 4, 2014
I have a make-table query that pulls all the fields from 1 table (MainTable), and creates a new table with a date stamp based apon a form value entered (New Table = MainTableWithDate).
Currently, I setup the query to pull info from the form field like this:
DateField: [Forms]![frmmain]![DateField]
However, when the make-table query is done - all date fields are blank (all other fields are correctly created), and when I look at the new created table (mainTableWIthDate), the typeassigned to the date field is "Binary" (in the form, I've specified LongDate).
View 6 Replies
View Related
Aug 5, 2014
I have a table products with a field "id_product" and "total" (Total items in stock)
I have a query with the fields "id_product" and also the field "total in stock"
I want an update query to update the field 'total' in table 'products' with infos from that query
For each id-product in table products, replace the field total with the field 'total in stock' from the query
So I want to update a filed in a specific table with infos form another table.
View 2 Replies
View Related
Apr 19, 2013
Here's a query that the bottom listview in the attached form i.e. a listview representing a table of calls(many) to fims (1 top listview)
Code:
SELECT calls.id, calls.firm_id, calls.called, calls.said, calls.spoke_to, calls.next
FROM calls
WHERE (((calls.firm_id)=[firms].[id]))
ORDER BY calls.called DESC , calls.next DESC;
When I run the thing...I get a dialog asking me for firm id.
I want to change this so when I move up and down the firms LV (top)... the bottom LV updates taking firm id from the top LV with focus.
Access 2003.
View 2 Replies
View Related
Jan 13, 2014
I have an MS Access accdb with linked SQL Server 2012 ODBC tables. I am working on a procedure to copy data from local tables to these linked tables (identical schema). I did a simple
Code:
DoCmd.RunSQL "INSERT INTO linkedTable SELECT * FROM localTable"
This works, but is very slow. Way too slow. (INSERT copies the data one record at a time).
I would like to copy the data in a bulk operation, or operations that I can execute programmatically.
View 1 Replies
View Related
May 28, 2015
I have a table for a multiple parents linked to a child table. I need to figure out a way to only allow 1 parent to be coded as primary, 1 as secondary, and then the rest as other... I thought about making Primary/Secondary/Other a primary key. But then I can only have 1 other. I would have to make a finite number of parents that could be entered and I want an infinite number.... My end goal is to have a report that only has a primary and second parent on it, but the rest of the parents still exist in the table...
*Child_ID
Parent_First_Name
*Primary/Secondary/Other
View 8 Replies
View Related
Sep 12, 2014
How to make a form open with data from a table based on a date and time in the/a table?
View 7 Replies
View Related
Aug 29, 2006
Hi,
I am extracting data from linked db2 table using access make table query. First I create a select query and can view the linked db2 data, but when I change to a make table query I get an error message, "invalid argument", when I run the make table query. There is no selection critera specified. Has anyone had this happen? and Do you know a solution?
Thanks for your support
GinnyP
View 1 Replies
View Related
Nov 24, 2006
Ok my problem is this......
I have a form with a field "Property Status" on it. It has 4 possible values -
"C - SHELTERED (with warden charge)";"H - SHELTERED (No warden charge)";"J - WHEELCHAIR SHELTERED (With warden charge)";"M - WHEELCHAIR SHELTERED (No warden charge)";"X - DISCONNECTED"
When the value "X - DISCONNECTED" is selected in the form I want the record to be removed from its existing table and sent to a new table which keeps all the "X - DISCONNECTED" records together.
Any ideas would be greatly appreciated. How would this be coded?
View 1 Replies
View Related
Jan 21, 2005
Hi everybody,
Beginner here needs help !
I'm building a make-table query for which if the result is null (no record correspond to the set of criterias), a default message like "there was no activity during the period" would appear in the table (not a message box...I need the message in the output table). The best I could think of is an IIF function but it doesn't seem to work... Is there any way to do this without using VBA?
Thanks in advance !
View 1 Replies
View Related
Nov 10, 2014
In a situation where I imported an excel file with so many columns and split them into two temp tables and they are linked using a key.
the data has a fixed part lets say
Field1....Field2.....Filed3.....Field4...then Field5.....Field6.....Field7....Field8 is the same data range as Field9...Field10...Field11...Field12. I would want to split this data into multiple rows like this
Field 1 Field2 Field3 Field4 Field5 Field6 Field7 Field8
Field 1 Field2 Field3 Field4 Field9 field10 field11 field12 and so own...
What is the best approach?
View 3 Replies
View Related
Aug 17, 2012
I have one DB that is used for creating/storing customer ID's, and another DB that is used for creating/storing job information for customers.I have linked the table from the customer DB to the job DB.
There is a table in the job database that holds customer name and ID, and some VBA that generates unique job codes.
Is it possible to have the data from the linked table automatically update into the existing table?
View 1 Replies
View Related
Feb 3, 2015
If you want to use a "DoCmd.RunSQL "INSERT INTO" command to insert data in a table and the data to insert comes from a table and a form, could this be done in one pass?
So...writing a record wit 4 values from table1 together with a additional value from a textbox in table2 as 5 values.
View 5 Replies
View Related
Jan 22, 2015
Is there a way to append a pivot table to a table or possibly make a query based on a pivot table? I need to get a count of Part Numbers and I need the average price for all these parts. Additionally I want to ignore a count of less than 3.
Also I am having trouble filtering on the count in the pivot table... haha, so I was gonna Query on it later on.
View 2 Replies
View Related
Dec 16, 2013
How to update data from one table to another table using form.
I have data coming from design team in Database 1 and using form i want search data and assign the job to a person and store it in the database with his name. I have to do this because database from design team is read only.
View 1 Replies
View Related
Jul 24, 2013
I've got a table tblPatienten, a table tblRechnung and a form frmRechnung.
The primary key in tblPatienten is KundenNummer, the primary key in tblRechnung is RechnungsNummer. The relationship between tblPatienten and tblRechnung is one to many.
Now, every patient (stored in tblPatienten) is allowed to make multiple orders (stored in tblRechnung).
How can I assign each new order entry in frmRechnung to an existing patient in tblPatienten?
View 10 Replies
View Related
Jul 9, 2014
I have a form with a sub form. when a record is choosen in a combo box the sub form is filled out with a record.
what I am trying to do is have a button that will copy that record to a history table then delete it off the the main table.
I cheated by using the wizard to get the code to delete the record but I am having troubles modifying the code to copy that record to the history table. Here is the code below. I have tried to insert code in several places but it just errors out.
'------------------------------------------------------------
' Master_tbl_sub_fm
'
'------------------------------------------------------------
Function Master_tbl_sub_fm()
On Error GoTo Master_tbl_sub_fm_Err
With CodeContextObject
On Error Resume Next
[Code] ....
View 8 Replies
View Related
Sep 20, 2014
I am building a simplified re-order point system - if inventory position drops below a certain level (the yellow level is this case) one or more purchase order lines has to be created in another table.
I have one table with the following field and data:
ItemId Red Yellow Green Multiple Inventory position
0001 10 30 50 5 45
0002 5 40 47 5 23
0003 11 20 30 10 5
I would like to generate new records (in another table) based on the above fields and three records.Basically the end result should look as the following:
ItemId Qty Start inv Aggregated inventory Prioritization
0002 5 23 28 Yellow
0002 5 28 33 Yellow
0002 5 33 38 Yellow
0002 5 38 43 Green
0002 5 43 48 Green
0003 10 5 15 Red
0003 10 15 25 Yellow
0003 10 25 35 Green
The logic is quite simple - if inventory position is less than the yellow value new order lines should be created in multiple qty (based on the multiple field) until the aggregated value (in table 2) is above the green value.The priotization value should be based on the start inv (in tbl 2) compared to the values in red, yellow and green in tbl 1.
View 8 Replies
View Related
Feb 2, 2014
I have a database that has 2 tables. Table A and Table B. Table A is my primary table. On this table I have 2 fields. The first field is a LOOKUP Field that looks up information from Table B and displays my selection in the field on Table A. Then using DLOOKUP I automatically input the information in the Second Field on Table A based upon the selection from the First Field.
This is working mostly correctly. However, the problem is, when I click on the next record in the table, it automatically changes the Second Field on that record to the same value as the record before it and continues this trend each time I click on another record. This occurs without me making a selection in the first field. If I make a selection in the first field it does change the Second Field to the Correct Value, but then the next Record has the same issue.
How do I go about fixing this so it doesn't change the value with the change of the record. Only change if I change that particular field within that 1 record?is there a way to restrict the Value's in my lookup field to only include the Values from Table B that aren't already in Table A?
View 5 Replies
View Related
Jul 1, 2013
I have 2 tables, master & child. with a one to many relationship.
On one of my forms I want to display some of the fields from the master table and only the last entry from my child table.
How would i accomplish this?
View 5 Replies
View Related
Jun 4, 2015
I have three tables that contain different columns but linked by a primary column call Name. I want to create a table where all these different columns in the three tables join to form a master table which can be updated regularly either through the master table or the smaller tables. The master table also has the primary column as Name.
If I update the master table with records, it should update the respective linked table and vice versa. I also want to link these tables to my SharePoint site.
Note: except the Name column, none of these tables have any other columns in common How do I go about this?
View 7 Replies
View Related
Sep 8, 2014
I have a parent table (tblLabels) and a child table (tblRevision) where the revision history for the parent table is kept.
The parent table is populated via an excel import and may have several records imported at once. Instead of having the user manually enter a new record note in the child table for each record imported into the parent table, I've created a form that collects the necessary data (date, person who added the record, person who authorized the record, and notes) and then creates a revision history for each new record.
This is what I have so far:
Code:
Private Sub cmdAddNotes_Click()
Dim strSQL As String
Dim RevisionDate As String
Dim RevisionRevisedBy As String
Dim RevisionDesc As String
[Code] ....
When I run the code nothing happens. No error, no new records create, etc. My suspicion is that I may need to use an INSERT INTO query instead of an UPDATE query, but I'm not sure how to go about matching up the foreign keys if that's the case.
View 14 Replies
View Related
