Joining Tables

Discussion in 'Access Conversion' started by Columbia,SC Chris, Jan 10, 2012.

  1. I am new to access and I am in need of starting a cumulative database. I can learn fast but I need the basics. I need to add table 2 data to table 1 which will be my main database. Sample Below:

    Table 1(Database)
    ID Label
    1 a
    2 b
    5 e

    Table 2(new data to be added)
    ID Label
    1 a1
    2 b
    3 c
    4 d
    6 f

    ID Label
    1 a1 (changed per table2 update)
    2 b (no change)
    3 c (Updated per table2)
    4 d (Updated per table2)
    5 e (Record not in table2 therefore no change)
    6 f (Record added per table 2 and was not in table 1)

    ****In general I want no duplicate ID's:
    1. If a record exists in both tables then update table 1 with table 2 data.
    2. If a record is in table 2 but not table 1 then add the record to table 1.
    3. If a record is in table 1 but not in table 2 then retain the table 1 data.

    Again. I just need table 1 to be my main database with periodic updates or adds from table 2. I hope someone can get me started. Thank you.
    Columbia,SC Chris, Jan 10, 2012
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