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How to retrieve data from table using its key?

I have two tables in Access which contain many similar fields. Now I want it so if I fill data in table 1, it will automatically fill the same data in table 2 and avoid re-filling. How can I do this using C#?

  • I want to use this database in my C# application. So, in case if you are making query please tell how to run it using C#. (Code) Thanks in advance.

  • Answer:

    If you want to work with Access Databases via C# you're going to want to use the OleDbConnection classes. Just do a Google search for "connecting to access with C#" and you will find lots of examples.

Eric Wise at Quora Visit the source

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You are violating the basic premise of the relational data model.  Logically you wouldn't want to put the "same data" in Table 2 as you put in Table 1.  You want to merely put a pointer or "foreign key" in Table 2, me thinks.  A query that combines Table 1 with Table 2 is probably what you need?  This has nothing to do with what language you program in.  It has to do with your underlying data model.

Christopher Rauch

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