Summary

We've talked about the concepts and jargon you'll need to deal with databases. Though some of the details differ among vendors, everything in this chapter applies to all relational databases. Different DBMS store data in different ways, but the data is always represented as tables of rows and columns that you can join on common values. You will be using the RESTRICT, PROJECT, and JOIN operators when you start using the SQL SELECT statement in Chapter 4.



Perl Database Programming
Perl Database Programming
ISBN: 0764549561
EAN: 2147483647
Year: 2001
Pages: 175

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