如何解鎖Oracle資料庫中帳號在建立Oracle資料庫時,其中SYS登入Oracle資料庫在SQL*Plus工具通過如下SQL解鎖。1、通過資料字典dba_users,查看Oracle賬戶的鎖定狀態,如下:(v其中,OPEN表示賬戶為解鎖狀態;EXPIRED表示賬戶為到期狀態(需要設定口令才能解除此狀態);LOCKED表示賬戶為鎖定狀態。)2、先通過查詢有哪些帳號被鎖 select username,account_status from
Oracle函數之LISTAGG最近在學習的過程中,發現一個挺有意思的Oracle函數,它可實現對列值的拼接。下面我們來看看其具體用法。用法:對其作用,官方文檔的解釋如下:For a specified measure, LISTAGG orders data within each group specified in the ORDER BY clause and then concatenates the values of the
TNS-03505 名稱無法解析TNS-03505 名稱無法解析問題現象:[Oracle@db01 admin]$ tnsping pri TNS Ping Utility for Linux: Version 11.2.0.4.0 - Production on 15-JUN-2015 21:57:52 Copyright (c) 1997, 2013, Oracle. All rights reserved.Used parameter files:TNS-03505:
ORA-00494 enqueue [CF] held for too long故障分析處理今天接應用人員電話反應,一套備份資料庫在加完資料表空間後出現異常,現象是資料庫能查詢,但是update很慢。故障處理詳細:1、查看alert日誌如下:Thread 1 advanced to log sequence 16541 (LGWR switch) Current log# 1 seq# 16541 mem# 0: +DATA/racdb/onlinelog/group_1.262.
Error 1313: RETURN is only allowed in a FUNCTION SQL Statement,1313allowed1、錯誤描述14:07:26Apply changes to rand_stringError 1313: RETURN is only allowed in a FUNCTION SQL Statement: CREATE PROCEDURE `rand_string` (n int) BEGIN DECLARE chars
C Configuring Large Memory OptimizationThis appendix provides information for configuring memory optimization with large page tables on the Linux operating system, using Hugepages. It contains the following topics:Overview of