Novice Access: The features, concepts, and perspectives of access

access| concept
Novice Access: The features, concepts, and perspectives of access



Problem:

This solves only one problem, what is access?


Design a database management system, with access
In Access to design a table, query, and then use VB to do a form to do the connection, with access inside the design form, report and adjust VBA to code what is the difference?
We do it in groups, but others don't seem to be aware of it, and I think it's easier to just make everything right in access and then call the VB code.



Reply:


1, access is a combination of "software".
That is, access has a user interface (VB can be used to develop the user interface), also has logic, process processing, that is, VBA language (VB can also be used for logical processing), and can store data, that is, in the table to store data. And all of this is stored in an MDB-formatted file (or, of course, an MDE format).
Answer the above question: Access inside design Good interface, VB must establish access.application in order to call, that is basically VBA programming, not VB programming.


2, access is not a storage format, is a software.
Please make a strict distinction between Access software and MDB format. The following statement is wrong: "I use VB to develop MIS system, the data stored in Access." ”。 VB down in the MDB format (or JET DB) just call a format of the file, and did not call to Access, in fact, the official saying is called "VB JET application." In addition, MDB format files can also be other development tools, such as DELPHI/PB/C/php/asp/cgi .... Call. But the only things that are called are MDB files, and many of the functionality that ACCESS software has, these tools are not callable.

3. Some objects in Access can be called by VB, but you must install Access software on the calling machine (copy an MDB file is not enough) or install additional ActiveX controls









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