46 lines
1.7 KiB
ReStructuredText
46 lines
1.7 KiB
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======
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FAQs
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======
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Q: How can I help improve RelStorage?
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A: The best way to help is to test and to provide database-specific
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expertise. Ask questions about RelStorage on the zodb-dev mailing list.
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Q: Can I perform SQL queries on the data in the database?
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A: No. Like FileStorage and DirectoryStorage, RelStorage stores the data
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as pickles, making it hard for anything but ZODB to interpret the data. An
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earlier project called Ape attempted to store data in a truly relational
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way, but it turned out that Ape worked too much against ZODB principles and
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therefore could not be made reliable enough for production use. RelStorage,
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on the other hand, is much closer to an ordinary ZODB storage, and is
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therefore more appropriate for production use.
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Q: How does RelStorage performance compare with FileStorage?
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A: According to benchmarks, RelStorage with PostgreSQL is often faster than
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FileStorage, especially under high concurrency. See
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:doc:`performance` for more.
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Q: Why should I choose RelStorage?
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A: Because RelStorage is a fairly small layer that builds on world-class
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databases. These databases have proven reliability and scalability, along
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with numerous support options.
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Q: Can RelStorage replace ZRS (Zope Replication Services)?
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A: Yes, RelStorage inherits the replication capabilities of PostgreSQL,
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MySQL, and Oracle.
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Q: How do I set up an environment to run the RelStorage tests?
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A: See :doc:`developing`.
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Q: Why do I get ``DatabaseError: ORA-03115: unsupported network
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datatype or representation`` when using Oracle?
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See the "driver" section of :ref:`oracle-adapter-options` for more
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information.
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