Unfortunately, I have no option to redesign database A. It's from a third
party. I could potentially redesign database B somewhat, but I think there
would be one table with 30+ columns no matter what.
For instance, I could precisely duplicate the fields from the table in
database A in a table in database B. But, the crux still remains -- is
there some simple way to copy data from one database to another if the
fields are the same?
Thanks!
>
> Well, first of all, you may want to consider redesigning your two
> databases. Most properly designed databases don't have 52 columns in a
> table. The process of normalization should decompose these tables further
> and make things way less complex. I don't know what the context of your
> databases are, but you might be able to treat 'Purchases' in Database B as
> a separate entity, for example.
>
> Unfortunately, I'm in the midst of learning MySQL myself, so I don't have
> any insight on your real question....plus, it's time for bed. But I think
> if you take some time redesigning the databases, you'll find your problems
> are not as complex...
>
> Good luck!
>
> - TIM FRASER
>
>> Please forgive the relatively basic nature of this question. I'm new at
>> this. I have the DuBois MySQL book and the O'Reilly one as well, so please
>> feel free to point me at a page number. I couldn't find the answer myself.
>>
>> I have two databases. Database A has a few tables, and the table of
>> interest has about 35 columns.
>>
>> Database B also has a few tables, and one of them has about 52 columns. 35
>> of those 52 are exactly the same as the ones in the table in Database A.
>> One could think of the data in Database B almost as a C++ subclass of the
>> data in Database A -- it has all the same fields, plus some extra ones.
>>
>> Is there a relatively easy way to take a record in Database A and copy all
>> the matching fields over to a record in Database B?
>>
>> I wish I could post the exact tables and such, but I can't. Here's a
>> simplified version:
>>
>> Database A, table 1 has:
>> Name
>> Address
>> Phone
>> Birthday
>>
>> Database B, table 1 has:
>> Name
>> Address
>> Phone
>> Birthday
>> Purchases
>> Account balance
>>
>> I would like to be able to easily make a new record in database B, copying
>> over the data from the matching fields in A.
>>
>> Before you suggest that B should simply point at A, I can't do that
>> unfortunately. The data in A "ages out" over time, but the data in B needs
>> to persist. So, I think the best choice is to copy.
>>
>> Thanks!
>> --Mike
>>
>>
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>
>
>
>
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