Field Relationships
I'm trying to build a sort of datagrid control by which i wish to
edit/delete/update data in a table.
Since I'm using foreign-keys for normalizing data in the db I need, when I
add or update data, to display those foreign-keys ID in a user-friendly
manner such as a combobox with values = FK and visible text = Value of the
description field in the related table. Is it enough clear 'till this point?
So I need to detect if a field in a table is related to another field in
another table (i seldom use self-joins, so maybe that would be a limit of my
control but I don't care about that).
Do I have to refer to the Recordset's object OpenSchema method or there's a
better/simpler way to do it?
OT P.S (Off-topic post scriptum.Do you have any suggestions or
advices on companies that work with MS technologies and might be interested
in an ASP/MS Access (included all MS Access non database specific stuff such
as Forms, VBA, Reports) developer with 2 years experience.
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Im having trouble with the relationships for my access db, which i will be using for asp. Ive gone through many tutorials, yet they all keep their db quite simple. I find mine quite complex, so its hard to adapt to them.
Im just wondering if im on the right track or not, cause I have a feeling its completely wrong. The database is used as follows:
The database is use for a training module, users access the training module, and the content is derived from db. There are topics, subtopics, and an assessment area, which is used to test users on their knowledge.
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how to use related tables in a database, how to retrieve data and how to insert data.
I have one MS access database with two tables. One table contains info about authors and the other contains articles. The relationship between the tables is many to many, that is one article can have many authors and one author can have many articles.
I plan on having a web form where I have the articles written and through the form I need to submit what authors ar related to that article.
What I need help with is how I use the form to connect authors and articles in the database and also how to retrieve the same information to publish on my site using ASP.
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Is it possible to access the relationship information from an ASP program? I'd like to be able to traverse the relationship tree of a .mdb file on my server from ASP/javascript code.
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When building an Access db to be accessed by ASP, do I need to worry
about setting the Relationships between the tables and the Join Types
(one to many ,etc.), or can I just rely on declaring the relationships
in my SQL statements?
How about the setting for Referential Integrity. Should I ever have to
worry about having Access enforce those, including update and deleted
related records?
I have never bothered with setting the relationships in the couple of
simple databases I've built for ASP. But I always wonder if I should
do that.
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Is it possible to access the relationship information from an ASP program? I'd like to be able to traverse the relationship tree of a .mdb file on my server from ASP/javascript code.
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can i do this :
rs.Open "SELECT * FROM files WHERE uid ="& getuid , Connect, 2, 3
Even that uid is not a field on files, it is a field on another table related to files..Called Shares.
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I have a cross-reference table already set up that contains the information about programs that run in our database. It contains the program name, the tables used as inputs and the tables used as outputs. There is a row for each input to a program and a row for each output from a program. Code:
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I am using a Relational database for my site and i have the following tables:
FIXTURES, GAMEDATES
the fields in FIXTURES are:
GameDate
Home
Away
(All of the above are numerical fields)
the fields in GAMEDATES are:
DateID(integer)
GameDate(#Date Field#)
What i have done is in the GAMEDATE field in the FIXTURES table i have used the ID number of the date that i wish to assign to that record - using a LEFT JOIN to display the actual date that is pulled from the GAMEDATES table (That which corresponds to the relevant id used in Fixtures)
The problem is that in some of my code i want to display records using sql and sometimes in the where clause i use the following:
WHERE Fixtures.GameDate<=(Date())
obviously meaning WHERE GAMEDATE is LESS THAN or EQUAL to TODAY.
The thing is when i use the join it does not use the where clause and displays all of the records in the FIXTURES table.
Does any one know how to get around this, i have not received any error messages it just isnt displaying the right data
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Im comparing values in a field while doing a loop if sAct<>myData(5,i) then At the end of the loop I make the value of sAct equal the current myData
This will work when comparing other fields withing my recordset (so I know the statement works) but it will not work for the field I want to compare. The only difference with this field is that it has null values. Could this be the problem? if so, how do I deal with nulls?
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I have a input form with 5 fields. One of the fields is MajorNo and the other is named Description.
I have a reference table in my MS Access database (tblMajor)that lists the major numbers and their descriptions.
I would like to have the description field in my ASP automatically filled based on the major number entered on the form, so the user will only need to input the major number when submitting to the Access table (tblSalesTotal).
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I am trying to pass a hidden field value on a form into another field on the
form so that it can then be inserted in the database, to enable me then to
reference that number at a later date.
(The hidden value (1 for example) would then automatically get passed to the
other input field.)
The code for the text field that allows users to type an number into it for
submission to the db is below, but what code do i need within the hidden
field to populate this text field below so that users do not have to type the
number in? Code:
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I have being working with making an edit field over the past few days. The edit function is now working fine. The edit fields that i have are for id, subject, notes, timedate.
All of the edit screens are one line text screens. What I want to do now is increase the size of the notes box to a larger textarea type box to make it easier to edit notes. The notes field in the db is a textarea field. Code:
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When you select the "Country" field in a Hotmail "get new account" link, the field "State" changes automatically, giving you the correct States that belongs to the chosen Country.
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I want to know what's the differences between
Request.Form("Field Name") and
Request.QueryString("Field Name")
OR they function exactly the same, which is to return the value of the
field??
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I would like to capture an entered value and use it in a query (Access)
Part No. __________
Do I need to store it in a variable and then can I have the query come up on the same page - they would enter a value and click a submit button. I'm not sure that I am on the right path. I'm not sure what syntax to use. Code:
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What is the correct code to use to hide a section if a specific DB field is
NULL.
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I'm trying to select all records that are true.
Code:
activerecord = -1
strsql = "select cnum from [topline data] where cnum = '" & cnum & "' and activerecord = '"& activerecord & "'"
is that right?i get this error when it equals 0. Microsoft OLE DB Provider for SQL Server error '80040e07'
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Using asp and mysql, can a text field in the db have a record with asp code in it and then display correctly on an asp page?
My experience is that it does not show anything in the <% %> tags but it shows the asp code when you view source. My coworker wants to make our website database driven and this text field was going to be the page content with html and <% if then else %> statements.
This does not work with php either so is there another field type that will parse server side scripting?
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In our ticketing system database, some fields may possible contain XML. To display a field for example, I have always used: Code:
<%=(rs_tkts.Fields.Item("CloseDesc").Value)%>
but this does not display the xml code listed. what I should do?
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Im wondering if there is any way to add a field into an MS access Table using SQL/ASP..
The reason im asking is my database online is Access 2000 (which i have at home), and im in work and they use Access 97.. so i cant download the database, add an extra field into the table, and then re-upload..
Ive tried using a Make Table, Update, Append.. but it doesnt like any of them statements..
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I need to append a field to a dbase file as part of a web application using asp/ado. I'm trying
Set oRS = Server.CreateObject( "ADODB.Recordset" )
'ors.CursorLocation = adUseClient
'ors.CursorType = adOpenDynamic
ors.Fields.Append "Index", adChar, 255 , adFldIsNullable
The problem is that the routine runs fine with no errors but the field is not added. Can someone help me out?
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I have a condition that will run depending if a field in the database is NULL. It will not run at all, and I tried various way to write it but none works so far
'not working
If assignee = DBNull Then
'not working
If assignee = null Then
'not working
If assignee = "" Then
If I write assignee to the page then the value of assignee will write if it has a value and nothing if it is null.
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i have a page that calls images from a database, that is 3 images a page but in my database i have more pictures for one record, so i want to have something like a link that will call the next field that has an image and i want it to replace the ones that i already have.
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I'm querying a table and the column has 6 positions. I need to check if the 5th position is a 2,3,6 or 7. If so I want to set a variable = "Y". Can someone help me out with this?
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How to insert fields in a table by using SQL?
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Usually, we can get data from table
by using rst("userid") because we know the column name
userid. Now, I have a variable to hold the column name. I
want to get data value like this rst(var1). However, I got
an error message.
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I have an MS Access DB and wanting to display OLE Object(pictures) data type
of MS Access to the browser. Is there a way that I can call it from the
database?
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I am working on a college project which has a user area and a page where only a user can access their information and no one elses.I am trying to do a select statment to read specific information from a field without reading any other users info.
The code below is for a drop down menu for payment months i have stored in a database...
Here is what i have got so far...
Code:
Set oRs = Conn.Execute("SELECT [Payment_Period] FROM wages WHERE [Staff_ID]=" & staffid" ORDER BY [fullname]")
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How do you get the value of a 'File Field'?
I have a form with a few text fields and 3 'File Fields' that are used to upload images.
I need to be able to get the value of each 'File Field' into its own variable.
But you do not seem to be able to access them the way you do with normal form fields.
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How i can get a text field that would accept apostrophes?
here's my code:
Title = Replace(Request.form("AddTitle")
Message = Replace(Request.form("AddMessage")
Author = request.Form("AddAuthor")
TimePosted = request.Form("AddTimePosted")
DatePosted = request.Form("AddDatePosted")
sql="INSERT into NEWS (title, message, author, date_posted, time_posted) "
sql = sql & "VALUES ('" & Title & "', '" & Message & "', '" & Author & "', '" & DatePosted & "', '" & TimePosted & "') "
Conn.execute(sql)
Response.write sql
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would like to calculate field based on the entry in another i.e.;
field3 = field2 X field1
field1 field2 field3
10 2.5 25.00( =sum(field1*field2))
How do I go about this in the SQL DB itself, can it be done within field3?
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this is a problem that is cropping up for the other developer here and i can't seem to find anything wrong. this code has worked for months and then the last couple of days it started sporadically not working. i'm thinking that it has to do with a performance issue but i'm not sure.
i don't use the ado .addnew or .update, so i'm a bit unfamiliar with the workings of it. here is a brief overview of the code.
ordRs.AddNew
... do the field updates
ordRs.Update
order = cint(ordRS.fields("order_id")
the problem is that order sometimes ends up as null, it's not getting the order_id field after the update. like is said, it's sporadic. anyone have any thoughts here?
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