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close databases

If I use the same table from the same database in to distinct forms that don't work beetwen them should I close the databases and tables when I unload one of them , and should I open the databases everytime I load one of them?
And Where should a database must be openned? In the main form, in a separate module, in a function of the form?
I hope you can answer all off this questions.

Thanks so much
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1 Solution
It really depends on what you are trying to accomplish.

There are two schools of thought.

1. Open a connection to the database when the app starts and persist it for the life of the app. This works well for databases like Access, FoxPro, etc..., where you are not all that worried about the number of connections to the db.

2. Open a connection to the database when you need it and close it after you have the data/recordset you desire.  This method is more desirable for ODBC DB's where you have connection limits.

3. A new concept is to populate a disconnected recordset.  This is very similar to option 2, but also you to have control binding and reattach/connect to the database and perform a batch update.  This is being used in Internet/Intranet application.
To answer your original question about opening a table on two forms...

There is absolutely nothing that prohibits you from opening the same table in two forms.  An issue you would have with this approach would most likely be a record-locking between the two forms.
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