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Creating new row in other table



 
 
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  #1  
Old March 7th, 2010, 01:46 PM posted to microsoft.public.access.tablesdbdesign
Maulwy
external usenet poster
 
Posts: 22
Default Creating new row in other table

Dear All,

Please teach me, how to make a new row/list in other table by entering
number in other table. Sample, In the table A and in the field "Details", I
put the number 2 and it automatically creates two rows in table B. Can this
be done in MS Access? Thank you for your help.

Regards,
Maulwy
  #2  
Old March 7th, 2010, 04:30 PM posted to microsoft.public.access.tablesdbdesign
Jeff Boyce
external usenet poster
 
Posts: 1,555
Default Creating new row in other table

Why? What business need are you attempting to solve with this approach?

It's generally considered not very good database design to be creating
'empty' rows in a second table. Why do you want empty rows?

And if the number you enter in TableA is a 'limit', why not just create new
rows in TableB (related, of course), until that limit is reached?

--

Regards

Jeff Boyce
Microsoft Access MVP

Disclaimer: This author may have received products and services mentioned in
this post. Mention and/or description of a product or service herein does
not constitute endorsement thereof.

Any code or pseudocode included in this post is offered "as is", with no
guarantee as to suitability.

You can thank the FTC of the USA for making this disclaimer
possible/necessary.

"Maulwy" wrote in message
...
Dear All,

Please teach me, how to make a new row/list in other table by entering
number in other table. Sample, In the table A and in the field "Details",
I
put the number 2 and it automatically creates two rows in table B. Can
this
be done in MS Access? Thank you for your help.

Regards,
Maulwy



  #3  
Old March 7th, 2010, 10:59 PM posted to microsoft.public.access.tablesdbdesign
John W. Vinson
external usenet poster
 
Posts: 18,261
Default Creating new row in other table

On Sun, 7 Mar 2010 04:46:01 -0800, Maulwy
wrote:

Dear All,

Please teach me, how to make a new row/list in other table by entering
number in other table. Sample, In the table A and in the field "Details", I
put the number 2 and it automatically creates two rows in table B. Can this
be done in MS Access? Thank you for your help.

Regards,
Maulwy


As Jeff says, it's very rarely either necessary nor a good idea to create
empty "placeholder" records in a table. They have an unpleasant habit of never
getting filled in.

The normal way to do this is to use a Form based on TableA, with a Subform
based on TableB, using the subform's Master/Child Link Field properties to
link them. When you enter data into the form and then the subform, Access will
automatically fill in the link, *when it is needed* and not before.

If you have some special need to do it the other way please explain.
--

John W. Vinson [MVP]
  #4  
Old March 8th, 2010, 03:39 PM posted to microsoft.public.access.tablesdbdesign
Maulwy
external usenet poster
 
Posts: 22
Default Creating new row in other table


Dear Jeff & John,

For example, if we do a sales order, where there is a column for the model,
quantity and serial number. To model and quantity, comes from one table,
while for the serial number, which I want, be inputted in the other table.
But not all existing models, has a serial number, this is the basic one, the
serial number I did not join in a single table. To avoid input mistakes
serial number, if the quantity, I suppose input 2, then automatically, the
database will add the 2 lines at the next table (the serial number tables).
Database like this is what I mean. Example data:
Model TransID Qty
1 AAA 2
2 BBB 3

TransID SerialNumber
1 AAAXXX01
1 AAAXXX02
2 BBBXXX01
2 BBBXXX50
2 BBBXXX65

Rgds,
Maulwy

"John W. Vinson" wrote:

On Sun, 7 Mar 2010 04:46:01 -0800, Maulwy
wrote:

Dear All,

Please teach me, how to make a new row/list in other table by entering
number in other table. Sample, In the table A and in the field "Details", I
put the number 2 and it automatically creates two rows in table B. Can this
be done in MS Access? Thank you for your help.

Regards,
Maulwy


As Jeff says, it's very rarely either necessary nor a good idea to create
empty "placeholder" records in a table. They have an unpleasant habit of never
getting filled in.

The normal way to do this is to use a Form based on TableA, with a Subform
based on TableB, using the subform's Master/Child Link Field properties to
link them. When you enter data into the form and then the subform, Access will
automatically fill in the link, *when it is needed* and not before.

If you have some special need to do it the other way please explain.
--

John W. Vinson [MVP]
.

  #5  
Old March 8th, 2010, 03:48 PM posted to microsoft.public.access.tablesdbdesign
Maulwy
external usenet poster
 
Posts: 22
Default Creating new row in other table

Dear All,

Sorry, the example should be:

TransID Model Qty
1 AAA 2
2 BBB 3

TransID SerialNumber
1 AAAXXX01
1 AAAXXX02
2 BBBXXX01
2 BBBXXX50
2 BBBXXX65 (null?)

Many Thanks,
Maulwy

"Maulwy" wrote:


Dear Jeff & John,

For example, if we do a sales order, where there is a column for the model,
quantity and serial number. To model and quantity, comes from one table,
while for the serial number, which I want, be inputted in the other table.
But not all existing models, has a serial number, this is the basic one, the
serial number I did not join in a single table. To avoid input mistakes
serial number, if the quantity, I suppose input 2, then automatically, the
database will add the 2 lines at the next table (the serial number tables).
Database like this is what I mean. Example data:
Model TransID Qty
1 AAA 2
2 BBB 3

TransID SerialNumber
1 AAAXXX01
1 AAAXXX02
2 BBBXXX01
2 BBBXXX50
2 BBBXXX65

Rgds,
Maulwy

"John W. Vinson" wrote:

On Sun, 7 Mar 2010 04:46:01 -0800, Maulwy
wrote:

Dear All,

Please teach me, how to make a new row/list in other table by entering
number in other table. Sample, In the table A and in the field "Details", I
put the number 2 and it automatically creates two rows in table B. Can this
be done in MS Access? Thank you for your help.

Regards,
Maulwy


As Jeff says, it's very rarely either necessary nor a good idea to create
empty "placeholder" records in a table. They have an unpleasant habit of never
getting filled in.

The normal way to do this is to use a Form based on TableA, with a Subform
based on TableB, using the subform's Master/Child Link Field properties to
link them. When you enter data into the form and then the subform, Access will
automatically fill in the link, *when it is needed* and not before.

If you have some special need to do it the other way please explain.
--

John W. Vinson [MVP]
.

  #6  
Old March 8th, 2010, 04:46 PM posted to microsoft.public.access.tablesdbdesign
KARL DEWEY
external usenet poster
 
Posts: 10,767
Default Creating new row in other table

Why not use a form instead of table A? Where will the query get the serial
numbers to use in table B?

--
Build a little, test a little.


"Maulwy" wrote:

Dear All,

Sorry, the example should be:

TransID Model Qty
1 AAA 2
2 BBB 3

TransID SerialNumber
1 AAAXXX01
1 AAAXXX02
2 BBBXXX01
2 BBBXXX50
2 BBBXXX65 (null?)

Many Thanks,
Maulwy

"Maulwy" wrote:


Dear Jeff & John,

For example, if we do a sales order, where there is a column for the model,
quantity and serial number. To model and quantity, comes from one table,
while for the serial number, which I want, be inputted in the other table.
But not all existing models, has a serial number, this is the basic one, the
serial number I did not join in a single table. To avoid input mistakes
serial number, if the quantity, I suppose input 2, then automatically, the
database will add the 2 lines at the next table (the serial number tables).
Database like this is what I mean. Example data:
Model TransID Qty
1 AAA 2
2 BBB 3

TransID SerialNumber
1 AAAXXX01
1 AAAXXX02
2 BBBXXX01
2 BBBXXX50
2 BBBXXX65

Rgds,
Maulwy

"John W. Vinson" wrote:

On Sun, 7 Mar 2010 04:46:01 -0800, Maulwy
wrote:

Dear All,

Please teach me, how to make a new row/list in other table by entering
number in other table. Sample, In the table A and in the field "Details", I
put the number 2 and it automatically creates two rows in table B. Can this
be done in MS Access? Thank you for your help.

Regards,
Maulwy

As Jeff says, it's very rarely either necessary nor a good idea to create
empty "placeholder" records in a table. They have an unpleasant habit of never
getting filled in.

The normal way to do this is to use a Form based on TableA, with a Subform
based on TableB, using the subform's Master/Child Link Field properties to
link them. When you enter data into the form and then the subform, Access will
automatically fill in the link, *when it is needed* and not before.

If you have some special need to do it the other way please explain.
--

John W. Vinson [MVP]
.

 




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