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BDB_Upgrading.pdf
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changelog_4_0_14.html
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changelog_4_1_24.html
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changelog_4_1_25.html
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changelog_4_2_52.html
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changelog_4_3_29.html
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changelog_4_4_16.html
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changelog_4_4_20.html
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changelog_4_5_20.html
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changelog_4_6.html
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changelog_4_7.html
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gettingStarted.css
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index.html
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introduction.html
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moreinfo.html
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preface.html
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upgrade_2_0_convert.html
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upgrade_2_0_disk.html
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upgrade_2_0_system.html
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upgrade_2_0_toc.html
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upgrade_3_0_close.html
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upgrade_3_0_cxx.html
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upgrade_3_0_db.html
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upgrade_3_0_db_cxx.html
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upgrade_3_0_dbenv.html
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upgrade_3_0_dbenv_cxx.html
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upgrade_3_0_dbinfo.html
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upgrade_3_0_disk.html
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upgrade_3_0_eacces.html
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upgrade_3_0_eagain.html
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upgrade_3_0_envopen.html
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upgrade_3_0_func.html
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upgrade_3_0_java.html
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upgrade_3_0_join.html
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upgrade_3_0_jump_set.html
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upgrade_3_0_lock_detect.html
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upgrade_3_0_lock_notheld.html
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upgrade_3_0_lock_put.html
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upgrade_3_0_lock_stat.html
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upgrade_3_0_log_register.html
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upgrade_3_0_log_stat.html
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upgrade_3_0_memp_stat.html
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upgrade_3_0_open.html
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upgrade_3_0_rmw.html
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upgrade_3_0_stat.html
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upgrade_3_0_toc.html
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upgrade_3_0_txn_begin.html
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upgrade_3_0_txn_commit.html
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upgrade_3_0_txn_stat.html
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upgrade_3_0_value_set.html
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upgrade_3_0_xa.html
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upgrade_3_1_btstat.html
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upgrade_3_1_config.html
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upgrade_3_1_disk.html
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upgrade_3_1_dup.html
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upgrade_3_1_env.html
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upgrade_3_1_log_register.html
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upgrade_3_1_logalloc.html
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upgrade_3_1_memp_register.html
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upgrade_3_1_put.html
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upgrade_3_1_set_feedback.html
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upgrade_3_1_set_paniccall.html
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upgrade_3_1_set_tx_recover.html
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upgrade_3_1_sysmem.html
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upgrade_3_1_tcl.html
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upgrade_3_1_tmp.html
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upgrade_3_1_toc.html
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upgrade_3_1_txn_check.html
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upgrade_3_2_callback.html
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upgrade_3_2_db_dump.html
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upgrade_3_2_disk.html
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upgrade_3_2_handle.html
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upgrade_3_2_incomplete.html
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upgrade_3_2_mutexlock.html
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upgrade_3_2_notfound.html
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upgrade_3_2_renumber.html
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upgrade_3_2_set_flags.html
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upgrade_3_2_toc.html
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upgrade_3_2_tx_recover.html
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upgrade_3_3_alloc.html
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upgrade_3_3_bigfile.html
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upgrade_3_3_conflict.html
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upgrade_3_3_disk.html
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upgrade_3_3_getswap.html
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upgrade_3_3_gettype.html
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upgrade_3_3_memp_fget.html
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upgrade_3_3_rpc.html
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upgrade_3_3_shared.html
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upgrade_3_3_toc.html
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upgrade_3_3_txn_prepare.html
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upgrade_4_0_asr.html
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upgrade_4_0_cxx.html
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upgrade_4_0_deadlock.html
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upgrade_4_0_disk.html
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upgrade_4_0_env.html
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upgrade_4_0_java.html
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upgrade_4_0_lock.html
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upgrade_4_0_lock_id_free.html
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upgrade_4_0_log.html
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upgrade_4_0_mp.html
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upgrade_4_0_rpc.html
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upgrade_4_0_set_lk_max.html
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upgrade_4_0_toc.html
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upgrade_4_0_txn.html
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upgrade_4_1_app_dispatch.html
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upgrade_4_1_checkpoint.html
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upgrade_4_1_cxx.html
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upgrade_4_1_disk.html
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upgrade_4_1_excl.html
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upgrade_4_1_fop.html
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upgrade_4_1_hash_nelem.html
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upgrade_4_1_incomplete.html
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upgrade_4_1_java.html
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upgrade_4_1_log_register.html
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upgrade_4_1_log_stat.html
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upgrade_4_1_memp_sync.html
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upgrade_4_1_toc.html
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upgrade_4_2_cksum.html
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upgrade_4_2_client.html
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upgrade_4_2_del.html
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upgrade_4_2_disk.html
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upgrade_4_2_java.html
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upgrade_4_2_lockng.html
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upgrade_4_2_nosync.html
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upgrade_4_2_priority.html
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upgrade_4_2_queue.html
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upgrade_4_2_repinit.html
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upgrade_4_2_tcl.html
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upgrade_4_2_toc.html
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upgrade_4_2_verify.html
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upgrade_4_3_cput.html
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upgrade_4_3_disk.html
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upgrade_4_3_enomem.html
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upgrade_4_3_err.html
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upgrade_4_3_fileopen.html
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upgrade_4_3_java.html
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upgrade_4_3_log.html
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upgrade_4_3_repl.html
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upgrade_4_3_rtc.html
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upgrade_4_3_stat.html
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upgrade_4_3_toc.html
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upgrade_4_3_verb.html
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upgrade_4_4_autocommit.html
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upgrade_4_4_clear.html
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upgrade_4_4_disk.html
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upgrade_4_4_isolation.html
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upgrade_4_4_joinenv.html
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upgrade_4_4_lockstat.html
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upgrade_4_4_mutex.html
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upgrade_4_4_toc.html
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upgrade_4_5_alive.html
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upgrade_4_5_applog.html
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upgrade_4_5_collect.html
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upgrade_4_5_config.html
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upgrade_4_5_deprecate.html
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upgrade_4_5_disk.html
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upgrade_4_5_elect.html
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upgrade_4_5_memp.html
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upgrade_4_5_pagesize.html
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upgrade_4_5_paniccall.html
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upgrade_4_5_rep_event.html
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upgrade_4_5_rep_set.html
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upgrade_4_5_source.html
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upgrade_4_5_toc.html
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upgrade_4_6_cursor.html
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upgrade_4_6_disk.html
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upgrade_4_6_event.html
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upgrade_4_6_full_election.html
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upgrade_4_6_memp_fput.html
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upgrade_4_6_memp_fset.html
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upgrade_4_6_toc.html
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upgrade_4_6_verb.html
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upgrade_4_6_verbose.html
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upgrade_4_6_win.html
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upgrade_4_7_disk.html
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upgrade_4_7_interdir.html
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upgrade_4_7_log.html
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upgrade_4_7_repapi.html
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upgrade_4_7_rtc.html
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upgrade_4_7_tcl.html
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upgrade_4_7_toc.html
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upgrade_process.html
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Editing: upgrade_3_2_renumber.html
<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Logically renumbering records</title> <link rel="stylesheet" href="gettingStarted.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> <link rel="start" href="index.html" title="Berkeley DB Upgrade Guide" /> <link rel="up" href="upgrade_3_2_toc.html" title="Chapter 12. Upgrading Berkeley DB 3.1 applications to Berkeley DB 3.2" /> <link rel="prev" href="upgrade_3_2_callback.html" title="DB callback functions, app_private field" /> <link rel="next" href="upgrade_3_2_incomplete.html" title="DB_INCOMPLETE" /> </head> <body> <div xmlns="" class="navheader"> <div class="libver"> <p>Library Version 11.2.5.3</p> </div> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">Logically renumbering records</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="upgrade_3_2_callback.html">Prev</a> </td> <th width="60%" align="center">Chapter 12. Upgrading Berkeley DB 3.1 applications to Berkeley DB 3.2</th> <td width="20%" align="right"> <a accesskey="n" href="upgrade_3_2_incomplete.html">Next</a></td> </tr> </table> <hr /> </div> <div class="sect1" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h2 class="title" style="clear: both"><a id="upgrade_3_2_renumber"></a>Logically renumbering records</h2> </div> </div> </div> <p>In the Berkeley DB 3.2 release, cursor adjustment semantics changed for Recno databases with mutable record numbers. Before the 3.2 release, cursors were adjusted to point to the previous or next record at the time the record to which the cursor referred was deleted. This could lead to unexpected behaviors. For example, two cursors referring to sequential records that were both deleted would lose their relationship to each other and would refer to the same position in the database instead of their original sequential relationship. There were also command sequences that would have unexpected results. For example, DB_AFTER and DB_BEFORE cursor put operations, using a cursor previously used to delete an item, would perform the put relative to the cursor's adjusted position and not its original position.</p> <p>In the Berkeley DB 3.2 release, cursors maintain their position in the tree regardless of deletion operations using the cursor. Applications that perform database operations, using cursors previously used to delete entries in Recno databases with mutable record numbers, should be evaluated to ensure that the new semantics do not cause application failure.</p> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="upgrade_3_2_callback.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="upgrade_3_2_toc.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="upgrade_3_2_incomplete.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">DB callback functions, app_private field </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> DB_INCOMPLETE</td> </tr> </table> </div> </body> </html>
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