解决enq: TX - index contention的常用方法
摘自:
Troubleshooting 'enq: TX - index contention' Waits (Doc ID 873243.1)
o Rebuild the index as reverse key indexes or hash partition the indexes which are listed in the 'Segments by Row Lock Waits' of the AWR reports
o Consider increasing the CACHE size of the sequences
o Rebuild or shrink associated index after huge amount of data purge
o Increase PCT_FREE for the index

本文提供了几种有效的方法来解决Oracle数据库中常见的enq:TX-indexcontention等待问题,包括重建索引为反向键索引或哈希分区索引、增加序列的CACHE大小、在大量数据清除后重建或收缩相关索引以及提高索引的PCT_FREE参数。
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