在Oracle安装后,默认归档模式开启,大量的日志会瞬间填满磁盘,所以在开发环境,经常需要关闭归档模式. 1.管理员身份连接数据库 $sqlplus user/passwd@dbname as sysdba SQL*Plus: Release 11.2.0.1.0 Production on Tue Jun 17 23:50:55 2014 Copyright (c) 1982, 2010, Oracle. All rights reserved. Connected to: Oracle D
使用Navicat 导入MySQL数据库的时候,出现了一个严重的错误,Lost connection to MySQL server during query,字面意思就是在查询过程中丢失连接到MySQL服务器. [Msg] Decompressing... [Msg] Table Created: wp_wiki_copy [Msg] Importing Data... [Msg] 2013 - Lost connection to MySQL server during query [Msg
1.改变非归档模式到归档模式: 1)SQL> conn / as sysdba (以DBA身份连接数据库) 2)SQL> shutdown immediate;(立即关闭数据库) 3)SQL> startup mount (启动实例并加载数据库,但不打开) 4)SQL> alter database archivelog; (更改数据库为归档模式) 5)SQL> alter database open; (打开数据库) 6)SQL> alter system archi
使用Python采集SQL Server数据库服务器磁盘信息时,遇到了一个错误"CONFIG statement cannot be used inside a user transaction.DB-Lib error message 20018, severity 16",那么为什么遇到这个错误呢? 其实很简单,就是因为SQL Server事务中不允许使用RECONFIGURE,我们可以简单模拟构造一下这个错误,如下所示: BEGIN TRAN EXEC sp_confi
在/portal-master/portal-impl/src/portal.properties文件中,有如下配置: # # Set this to true to enable OpenId authentication. If set to true, then the # property "auto.login.hooks" must contain a reference to the class # com.liferay.portal.security.auth.Ope
Mysql5.7 出现 SELECT list is not in GROUP BY clause and contains nonaggregated column ‘sss.month_id’ which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by select @@global.sql_mode 查询出来的