RAC 环境中最常见的 5 个数据库和/或实例性能问题 (Doc ID 1602076.1Top 5 Database and/or Instance Performance Issues in R ... 阅读全文
简介Why "Executions" and "Elap per Exec(s)" are 'Blank' in AWR for Some SQL Statem阅读全文
简介Library Cache Lock on Namespace SQL AREA BUILD(82) Caused by Failed Parse (Doc ID 2294281.1存储过程解析 ... 阅读全文
故障排除“cursor: pin S wait on X”等待事件 (Doc ID 2901617.1Troubleshooting 'cursor: pin S wait on X' waits. ... 阅读全文
GOAHard parse time may be impacted when there are a high number of parse errors.This may be noted i ... 阅读全文
APPLIES TOOracle Database Cloud Schema Service - Version N/A and lateOracle Database Exadata Expre ... 阅读全文
简介SQL 版本数过高 – 原因判断脚本 (Doc ID 1985045.1High SQL Version Counts - Script to determine reason(s) (Doc ... 阅读全文
【MOS】高版本数(>1024)的SQL语句在升级到12.2及更高版本后会导致数据库性能下降 (Doc ID 2469639.1High Version Counts For SQL Stateme ... 阅读全文
简介12.2 Cursor Mutex: x Due to Sql not Shared Because of Bind_equiv_failure (Doc ID 2539161.112.2 由于 ... 阅读全文
介绍修复bug 2450264引入了一个新事件(10503),该事件允许用户指定字符绑定缓冲区长度。根据所使用的长度,子游标中的字符绑定可以全部使用相同的绑定长度创建。对于绑定变量,ORACLE根据变 ... 阅读全文