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<a accesskey="1" href="page.php?w=EXtremeDB&amp;p=5">1.Previous</a><br />
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<p>* <a href="page.php?w=Hash_table">Hash table</a><br/>
* <a href="page.php?w=Trigram_index">Trigram index</a><br/>
* Custom indexes</p>

<p><big> Concurrency mechanisms </big></p>
<p>eXtremeDB supports multiple concurrent users, offering <a href="page.php?w=ACID">ACID</a>-compliant transactions (as defined by Jim Gray) using either of two transaction managers: a multiple-reader, single writer (MURSIW) locking mechanism, or <a href="page.php?w=multiversion_concurrency_control">multiversion concurrency control</a> (MVCC) transaction manager (optimistic non-locking</p><p>
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<a accesskey="3" href="page.php?w=EXtremeDB&amp;p=7">3.Next</a>
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