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#1
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Table/Query Lookup
I am trying to populate a field in access called “quoted to” which will
include several customers. I am using a table/query to look up the customers in a separate table called customers. So far I am only able to put 1 customer in this field. Does anyone know if I can put multiple customer names in the same field in this manner. |
#2
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Table/Query Lookup
Sounds like you need a third table commonly called a bridging or
cross-reference table. You have a many-to-many relationship with one quote for many customers and a customer can have many quotes. Therefore you need this third table that contains a foriegn key from the quotes table and also the customer FK. Actually what you might need is a copy of Database Design for Mere Mortals by Hernandez to explain this concept better than I can in this short space. -- Jerry Whittle Light. Strong. Cheap. Pick two. Keith Bontrager - Bicycle Builder. "F. M. Tom" wrote: I am trying to populate a field in access called “quoted to” which will include several customers. I am using a table/query to look up the customers in a separate table called customers. So far I am only able to put 1 customer in this field. Does anyone know if I can put multiple customer names in the same field in this manner. |
#3
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Table/Query Lookup
I will look for the book. Can you tell me what you mean by "customer FK"?
"Jerry Whittle" wrote: Sounds like you need a third table commonly called a bridging or cross-reference table. You have a many-to-many relationship with one quote for many customers and a customer can have many quotes. Therefore you need this third table that contains a foriegn key from the quotes table and also the customer FK. Actually what you might need is a copy of Database Design for Mere Mortals by Hernandez to explain this concept better than I can in this short space. -- Jerry Whittle Light. Strong. Cheap. Pick two. Keith Bontrager - Bicycle Builder. "F. M. Tom" wrote: I am trying to populate a field in access called “quoted to” which will include several customers. I am using a table/query to look up the customers in a separate table called customers. So far I am only able to put 1 customer in this field. Does anyone know if I can put multiple customer names in the same field in this manner. |
#4
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Table/Query Lookup
On Wed, 4 Jan 2006 12:24:03 -0800, F. M. Tom
wrote: I am trying to populate a field in access called quoted to which will include several customers. I am using a table/query to look up the customers in a separate table called customers. So far I am only able to put 1 customer in this field. Does anyone know if I can put multiple customer names in the same field in this manner. If you have a Many (quotes) to Many (customers) relationship, you need THREE tables. You cannot put multiple customers in one field! A possible design would be Quotes QuoteID Primary Key this might be your unique Quote Number information about the quote Customers CustomerID Primary Key perhaps an autonumber LastName FirstName other bio and contact information CustomerQuotes QuoteID link to Quotes CustomerID link to Customers any fields needed to store information about THIS quote for THIS customer, e.g. a yes/no field for accepted, a memo field for comments, a quote date, etc. To do data entry, you'ld use a Form for Quotes with a Subform based on CustomerQuotes. There'd be a CustomerID combo box on the subform to select the customer; for a multi-customer quote you'ld just add multiple rows. John W. Vinson[MVP] |
#5
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Table/Query Lookup
I just applied a dope slap up the side of my head. I should explain
abbreviations. FK stands for Foreign Key and PK stands for Primary Key. A primary key is a field or set of fields that uniquely identifies a record in a table. Say that Jerry is CustomerID 1 and CustomerID is the primary key. Now a Customer can have many Quotes. To link these two tables together I'll have a CustomerID_FK field in the Quotes table and put the number 1 in each of Jerry's quotes. That way we can link these two tables together. This is the ideal one-to-many ( 1-M ) relationship. Your problem is that not only can a Customer have many Quotes, a Quote may have many Customers. That's the dreaded Many-to-Many ( M-M ) relationship. The way to handle this is a bridging, linking, or cross-reference table (all names for same thing). That way you have something like this: Customer Link Quotes 1 - M - 1 This concept is better presented in the book along with nicer graphics! -- Jerry Whittle Light. Strong. Cheap. Pick two. Keith Bontrager - Bicycle Builder. "F. M. Tom" wrote: I will look for the book. Can you tell me what you mean by "customer FK"? "Jerry Whittle" wrote: Sounds like you need a third table commonly called a bridging or cross-reference table. You have a many-to-many relationship with one quote for many customers and a customer can have many quotes. Therefore you need this third table that contains a foriegn key from the quotes table and also the customer FK. Actually what you might need is a copy of Database Design for Mere Mortals by Hernandez to explain this concept better than I can in this short space. -- Jerry Whittle Light. Strong. Cheap. Pick two. Keith Bontrager - Bicycle Builder. "F. M. Tom" wrote: I am trying to populate a field in access called “quoted to” which will include several customers. I am using a table/query to look up the customers in a separate table called customers. So far I am only able to put 1 customer in this field. Does anyone know if I can put multiple customer names in the same field in this manner. |
#6
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Table/Query Lookup
Thanks, Jerry - I should appologize to you for not knowing the abbreviations.
My son found he has access to the book on line and I looked at the first two chapters last night and will get more into it tonight. "Jerry Whittle" wrote: I just applied a dope slap up the side of my head. I should explain abbreviations. FK stands for Foreign Key and PK stands for Primary Key. A primary key is a field or set of fields that uniquely identifies a record in a table. Say that Jerry is CustomerID 1 and CustomerID is the primary key. Now a Customer can have many Quotes. To link these two tables together I'll have a CustomerID_FK field in the Quotes table and put the number 1 in each of Jerry's quotes. That way we can link these two tables together. This is the ideal one-to-many ( 1-M ) relationship. Your problem is that not only can a Customer have many Quotes, a Quote may have many Customers. That's the dreaded Many-to-Many ( M-M ) relationship. The way to handle this is a bridging, linking, or cross-reference table (all names for same thing). That way you have something like this: Customer Link Quotes 1 - M - 1 This concept is better presented in the book along with nicer graphics! -- Jerry Whittle Light. Strong. Cheap. Pick two. Keith Bontrager - Bicycle Builder. "F. M. Tom" wrote: I will look for the book. Can you tell me what you mean by "customer FK"? "Jerry Whittle" wrote: Sounds like you need a third table commonly called a bridging or cross-reference table. You have a many-to-many relationship with one quote for many customers and a customer can have many quotes. Therefore you need this third table that contains a foriegn key from the quotes table and also the customer FK. Actually what you might need is a copy of Database Design for Mere Mortals by Hernandez to explain this concept better than I can in this short space. -- Jerry Whittle Light. Strong. Cheap. Pick two. Keith Bontrager - Bicycle Builder. "F. M. Tom" wrote: I am trying to populate a field in access called “quoted to” which will include several customers. I am using a table/query to look up the customers in a separate table called customers. So far I am only able to put 1 customer in this field. Does anyone know if I can put multiple customer names in the same field in this manner. |
#7
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Table/Query Lookup
I have set up the 3rd table and I have an input form designed. Can you tell
me how I will be able to add more than one customer to the quoted to field and how it will be stored in the database. I have used access a little but nothing this complex before. I was using a program on my palm which would let me enter more than one name in the "quoted to" field. Thanks in advance for any help you can give me or any publications you can refer me to. As I remember Access for Dummies does not go this deep. "John Vinson" wrote: On Wed, 4 Jan 2006 12:24:03 -0800, F. M. Tom wrote: I am trying to populate a field in access called “quoted to” which will include several customers. I am using a table/query to look up the customers in a separate table called customers. So far I am only able to put 1 customer in this field. Does anyone know if I can put multiple customer names in the same field in this manner. If you have a Many (quotes) to Many (customers) relationship, you need THREE tables. You cannot put multiple customers in one field! A possible design would be Quotes QuoteID Primary Key this might be your unique Quote Number information about the quote Customers CustomerID Primary Key perhaps an autonumber LastName FirstName other bio and contact information CustomerQuotes QuoteID link to Quotes CustomerID link to Customers any fields needed to store information about THIS quote for THIS customer, e.g. a yes/no field for accepted, a memo field for comments, a quote date, etc. To do data entry, you'ld use a Form for Quotes with a Subform based on CustomerQuotes. There'd be a CustomerID combo box on the subform to select the customer; for a multi-customer quote you'ld just add multiple rows. John W. Vinson[MVP] |
#8
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Table/Query Lookup
On Mon, 9 Jan 2006 14:10:05 -0800, F. M. Tom
wrote: I have set up the 3rd table and I have an input form designed. Can you tell me how I will be able to add more than one customer to the quoted to field and how it will be stored in the database. You do NOT want to "add more than one customer to the quoted to field". Relational databases DO NOT WORK THAT WAY. Fields should be "atomic", having only one value. I have used access a little but nothing this complex before. I was using a program on my palm which would let me enter more than one name in the "quoted to" field. Thanks in advance for any help you can give me or any publications you can refer me to. As I remember Access for Dummies does not go this deep. The Dummies book seems to be ok for people using existing Access databases, but (by design) doesn't deal with relational design or database creation. Rather than trying to store multiple names in one field, please investigate my suggestion. It's standard practice, and it works well. Quotes QuoteID Primary Key this might be your unique Quote Number information about the quote Customers CustomerID Primary Key perhaps an autonumber LastName FirstName other bio and contact information CustomerQuotes QuoteID link to Quotes CustomerID link to Customers any fields needed to store information about THIS quote for THIS customer, e.g. a yes/no field for accepted, a memo field for comments, a quote date, etc. To do data entry, you'ld use a Form for Quotes with a Subform based on CustomerQuotes. There'd be a CustomerID combo box on the subform to select the customer; for a multi-customer quote you'ld just add multiple rows. John W. Vinson[MVP] John W. Vinson[MVP] |
#9
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Table/Query Lookup
To do data entry, you'ld use a Form for Quotes with a Subform based on CustomerQuotes. There'd be a CustomerID combo box on the subform to select the customer; for a multi-customer quote you'ld just add multiple rows. John - The above paragraph is what I have been trying to do. I agree with all that you have said. I have set up the "customer quotes" table but am having trouble setting up the subform or even a form that will let me add more than one customer to the quoted to form. This is what I am looking for help on. - Thanks "John Vinson" wrote: On Mon, 9 Jan 2006 14:10:05 -0800, F. M. Tom wrote: I have set up the 3rd table and I have an input form designed. Can you tell me how I will be able to add more than one customer to the quoted to field and how it will be stored in the database. You do NOT want to "add more than one customer to the quoted to field". Relational databases DO NOT WORK THAT WAY. Fields should be "atomic", having only one value. I have used access a little but nothing this complex before. I was using a program on my palm which would let me enter more than one name in the "quoted to" field. Thanks in advance for any help you can give me or any publications you can refer me to. As I remember Access for Dummies does not go this deep. The Dummies book seems to be ok for people using existing Access databases, but (by design) doesn't deal with relational design or database creation. Rather than trying to store multiple names in one field, please investigate my suggestion. It's standard practice, and it works well. Quotes QuoteID Primary Key this might be your unique Quote Number information about the quote Customers CustomerID Primary Key perhaps an autonumber LastName FirstName other bio and contact information CustomerQuotes QuoteID link to Quotes CustomerID link to Customers any fields needed to store information about THIS quote for THIS customer, e.g. a yes/no field for accepted, a memo field for comments, a quote date, etc. To do data entry, you'ld use a Form for Quotes with a Subform based on CustomerQuotes. There'd be a CustomerID combo box on the subform to select the customer; for a multi-customer quote you'ld just add multiple rows. John W. Vinson[MVP] John W. Vinson[MVP] |
#10
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Table/Query Lookup
On Tue, 10 Jan 2006 14:11:02 -0800, F. M. Tom
wrote: To do data entry, you'ld use a Form for Quotes with a Subform based on CustomerQuotes. There'd be a CustomerID combo box on the subform to select the customer; for a multi-customer quote you'ld just add multiple rows. John - The above paragraph is what I have been trying to do. I agree with all that you have said. I have set up the "customer quotes" table but am having trouble setting up the subform or even a form that will let me add more than one customer to the quoted to form. This is what I am looking for help on. - Thanks Please post the following information: The Recordsource properties of your mainform and subform (show the SQL view of the query if it's a query) The Primary Key of each table The RowSource of the combo box (post the SQL) The Control Source and Bound Column of the combo box John W. Vinson[MVP] |
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