10 lines
591 B
Text
10 lines
591 B
Text
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This module helps abstract the process of working with complex
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schemas of relational SQL database tables. As with DBI, it lets
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you work with data a row at a time, but gives you the extra ability
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to, with a single method call, reach across and grab rows of related
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data from tables located elsewhere in your database, without having
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to construct an SQL join clause yourself. The 'distance' from the
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originating table to the related one can be arbitrarily long, so
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long as they are related in some way -- i.e., could both return
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data through a single (though perhaps quite lengthy) SQL query.
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