On Mon, 28 Jun 2010 03:07:29 -0700, Dennis Lee Bieber wrote:
> Coding for something like a DBTG network database did not allow for
> easy changes in queries... What would be a simple join in SQL was
> traversing a circular linked list in the DBTG database my college
> taught. EG: loop get next "master" record; loop get next sub-record
> [etc. until all needed data retrieved] until back to master; until back
> to top of database.
We'll also note that most of these you'd have to map out where each
field in a record was by hand, any time you wanted to open the file.
Often several times, because there would be multiple record layouts per
file.
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