\c dbtest postgresCREATE USER user1 WITH PASSWORD 'xxx';CREATE USER user2 WITH PASSWORD 'xxx';CREATE USER user3 WITH PASSWORD 'xxx';CREATE USER user4 WITH PASSWORD 'xxx';CREATE USER user5 WITH PASSWOR

满足如下条件即可远程启停库1.创建sysdba用户，赋予connect和sysdba权限2.remote_login_passwordfile为 EXCLUSIVE3.加入静态监听Last login: Tue Nov 3 11:01:16 2020 from 192.168.52.1[root@saperp ~]# su - oracleLast login: Fri Oct 30 14:44:

根据变化量，可确定表的繁忙度，以及作为判断可能数据增长的对象。select obj.owner, obj.object_name,to_char(sn.BEGIN_INTERVAL_TIME,'yyyy-mm-dd') start_day,round(sum(a.db_block_changes_delta*8)/1024/1024,2) incr_GBfrom dba_hist_seg_stat

SQL> alter session set container=pdb;Session altered.SQL> select comp_id, version, status from dba_registry ;COMP_IDVERSIONSTATUS----------...

Opatch：Patch 6880880https://updates.oracle.com/download/6880880.htmlhttps://support.oracle.com/epmos/faces/PatchDetail?requestId=13915383&_afrLoop=151589229344425&patchId=6880880&_af...

初步沟通后得知，开发人员通过应用日志监控到某条 SQL 执行时间显著增加，导致接口超时，进而影响业务流程。基于经验判断，这很可能是由于执行计划选择错误导致的性能问题，解决方向是固定最优执行计划。执行计划绑定后，开发反馈 SQL 执行速度恢复正常，接口不再超时，产线业务得以恢复。获取该 SQL 的 AWR SQL 报告（awrsqrpt）。首先，通过 SQLID。执行后会在当前目录生成。

[root@heavydb ~]# cat /etc/redhat-releaseCentOS Linux release 7.9.2009 (Core)[root@heavydb ~]# yum install sysstatThere was a problem importing one of the Python modulesrequired to run yum. The error

postgresql 迁移表和索引至新的表空间

在执行mpich的./autogen.sh最后报错如下：Makefile.am:6: error: Libtool library used but 'LIBTOOL' is undefinedMakefile.am:6: The usual way to define 'LIBTOOL' is to add 'LT_INIMakefile.am:6:to 'configure.ac' and r

1.环境centos 7.4postgresql 10.5物理ip192.168.199.240 （node1）192.168.199.241 （node2）192.168.199.242 （node3）vip192.168.199.248192.168.199.2492.安装patroni和ectdyum install -y gcc python-devel epel-releaseyum i