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Background Data: This process involves an examination of the file to detect what tables it has which are of interest to Mini-Edit, followed by a basic examination of each table to confirm it has certain minimal required fields. The act of opening an older file more or less brings it up-to-date with any structural changes needed by the database, any new terms in the supporting fields, and other minor changes. During the open process, the fields listed in the ASN_Fields table of the MEdit_Settings.mdb file are used to determine if the table being examined is to be treated as an ITS table.
When you open each individual table this process is continued for that table and additional fields may be added. Thus, if you want to make an older file current (which is often required to use it in some of the tools), simply open that file, then open every table of interest to you. The tool makes you do this manually for each file you need because often (particularly for data stewards) a user may have a need to keep old copies of files.
The tool takes an optimistic approach to the tables themselves and does not mind additional fields it does not understand being associated with each table. It ignores these fields in it own operations. This allows legacy meta data from other tools to co-exist in the records of the tables. Tables which are not one of the standard named tables, or do not have the minimum data fields to be detected as a Mini-Edit table, can also co-exist in the file without problems. |