OK, I've tried everything I can think of with this query/subform/records problem. I've searched the internet for days, even bought some big fat Access reference books and read them cover-to-cover, but I still can't get my database to do what I want. This newbie would *really* appreciate some help...
I am trying to create a database which I can use to store client’s advertising expenses. I currently have three tables: tblListings (which stores basic information about each client, with the field ListingID as the primary key); Advertising Rates (which stores the different types of advertising products and their prices, with the field ProductNumber as the primary key); and tblAdvertisingExpenses (which stores each “order” of an advertising product, including the client’s ListingID as a foreign key, date, the type of advertising, and the total cost - the primary key is an auto-numbered field called OrderNumber).
I have a main form called frmListings, which displays the client’s information from the tblListings table, and includes a subform. I wanted the subform to show only the advertising expenses corresponding to the ListingID (ie. client) displayed on the main form, so I based the subform on a query which displays all records from tblAdvertisingExpenses with a ListingID that matches the ListingID displayed from tblListings. So far so good - the records displayed in the subform change correctly when the record in the main form changes.
Now the tricky part…
The subform displays a blank row for a new record, and I would like to be able to enter a new advertising expense in that blank record (date, type of ad, and cost), and have that data added as a new record in the tblAdvertisingExpenses table with a new auto-numbered OrderNumber. I don’t know whether it’s because the subform is actually a dynaset from a query, or because I’ve constructed the query incorrectly (highly likely, I’m still pretty new to queries), but when I add in the details for the new record, I get the following error:
The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship (etc, etc).
I suspect that Access is attempting to write the record (along with the ListingID) back to the tblListings table, where the same ListingID already exists (uniquely) as the primary key. But I don’t know for sure, because I don’t really know what the heck I’m doing. What I actually want to do is have the new record I’ve entered in the subform added to the tblAdvertisingExpenses table, which is the record source for the qryListings query which displays records in the subform. It shouldn’t be a problem, should it? So why can’t I get it to work? Perhaps there’s a fundamental flaw in the way I’ve broken up the database into tables, or my assigning of primary keys and foreign keys. Or perhaps there’s a flaw with the way I’ve constructed my query. Or am I forced to have a completely separate form solely for entering data into the tblAdvertisingExpenses table? Or will I need to use a macro or VBA to accomplish what I want?...
Sorry if this is terribly confusing. I can provide more specific details (and screen captures) of the tables, queries, forms, and relationships (if I haven’t provided enough specific details already), and would really appreciate any help that anyone can provide. Help?!
I am trying to create a database which I can use to store client’s advertising expenses. I currently have three tables: tblListings (which stores basic information about each client, with the field ListingID as the primary key); Advertising Rates (which stores the different types of advertising products and their prices, with the field ProductNumber as the primary key); and tblAdvertisingExpenses (which stores each “order” of an advertising product, including the client’s ListingID as a foreign key, date, the type of advertising, and the total cost - the primary key is an auto-numbered field called OrderNumber).
I have a main form called frmListings, which displays the client’s information from the tblListings table, and includes a subform. I wanted the subform to show only the advertising expenses corresponding to the ListingID (ie. client) displayed on the main form, so I based the subform on a query which displays all records from tblAdvertisingExpenses with a ListingID that matches the ListingID displayed from tblListings. So far so good - the records displayed in the subform change correctly when the record in the main form changes.
Now the tricky part…
The subform displays a blank row for a new record, and I would like to be able to enter a new advertising expense in that blank record (date, type of ad, and cost), and have that data added as a new record in the tblAdvertisingExpenses table with a new auto-numbered OrderNumber. I don’t know whether it’s because the subform is actually a dynaset from a query, or because I’ve constructed the query incorrectly (highly likely, I’m still pretty new to queries), but when I add in the details for the new record, I get the following error:
The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship (etc, etc).
I suspect that Access is attempting to write the record (along with the ListingID) back to the tblListings table, where the same ListingID already exists (uniquely) as the primary key. But I don’t know for sure, because I don’t really know what the heck I’m doing. What I actually want to do is have the new record I’ve entered in the subform added to the tblAdvertisingExpenses table, which is the record source for the qryListings query which displays records in the subform. It shouldn’t be a problem, should it? So why can’t I get it to work? Perhaps there’s a fundamental flaw in the way I’ve broken up the database into tables, or my assigning of primary keys and foreign keys. Or perhaps there’s a flaw with the way I’ve constructed my query. Or am I forced to have a completely separate form solely for entering data into the tblAdvertisingExpenses table? Or will I need to use a macro or VBA to accomplish what I want?...
Sorry if this is terribly confusing. I can provide more specific details (and screen captures) of the tables, queries, forms, and relationships (if I haven’t provided enough specific details already), and would really appreciate any help that anyone can provide. Help?!
