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I disagree. What we had (and still have if you use RLA) was a proceduralOh pishposh. SQL is hardly "new". It's nearly 40 years old, which is really quite old in programming terms. It's certainly a *different* model, but even the concept of declarative vs. imperative is hardly new. SQL is better for some things, procedural RLA better for others.
programming model. We had to tell data-management "how" to get the data
we wanted. In the new (SQL) model we tell data-management "what" we want
and leave it up to data-management to figure out "how" to do its job.
This is no different from the previous advances in storage management
(remember clusters heads and sectors) or communications (RTS/CTS
management).
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