* /192.168.13.31/ * 终端1 postgres=# drop table tt; DROP TABLE postgres=# insert into t select generate_series(1,10000); INSERT 0 10000 postgres=# checkpoint;select pg_switch_wal(); CHECKPOINT pg_switch_wal --- 0/60C1480 (1 row) postgres=# checkpoint;select pg_switch_wal(); CHECKPO...
\d [tablename] 查看指定表的结构信息 \dn 查看当前库下所有schema\c [databaseName] 切换到指定库下 \help 查看所有SQL帮助信息,与\?不同 \help create user 可查看创建用户相关的帮助信息 \du 查看所有用户信息 \x 格式化输出,类似于mysql中的\G 2.用户管理及权限分配: pg用户分为两类,role 和user,默...
local是本地认证database可以是all,或者指定的数据库user列可以是all,或者具体的用户address可以是ip或者网段method比较重要,有"trust", "reject", "md5", "password", "scram-sha-256", # "gss", "sspi", "ident", "peer", "pam", "ldap", "radius" or "cert"这么多可选。trust是免密登录;reject...
postgres@[local]:5432=#\c test pguserYou are now connected to database"test"as user"pguser".test@[local]:5432=#select current_database;ERROR: column"current_database"does not exist LINE 1: select current_database; ^test@[local]:5432=#select current_database();current_database ---test...
Switch over to thepostgresaccount on your server by typing: sudo -i -u postgres You can now access a Postgres prompt immediately by typing: psql This will log you into the PostgreSQL prompt, and from here you are free to interact with the database management system right away. ...
DatabaseName String 慢SQL查询的数据库名示例值:postgres UserName String 慢SQL执行的用户名示例值:postgres NormalQuery String 抽象参数之后的慢SQL示例值:select $1 ClientAddr String 慢SQL执行的客户端地址示例值:::1 CallNum Integer 在选定时间范围内慢SQL语句执行的次数示例值:1 CallPercent Float 在选定时...
postgresql - Why does Postgres generate an already used PK value? - Database Administrators Stack Exchange Spring JPA/HIbernate: duplicate key value violates unique constraint - Stack Overflow 案例: /* Navicat Premium Data Transfer Source Server : 192.168.30.65-nap ...
4.对于PostgreSQL 9.5版本数据库,进行备份的数据库账号必须具体superuser的角色,否则无法备份pg_create_restore_point(text) 、 pg_switch_xlog() 5.参数block_size 和wal_block_size备份和恢复服务器要一致,否则无法备份 6.通过 ssh 运行远程操作时,远程和本地 pg_probackup 版本必须相同 ...
These steps will show you how to use the Postgres CLI to create a database and add a table to it. 1. Let us start this process by loading into the Postgres CLI. Run the following command to switch into the command line interface. psqlCopy 2. Within the PostgreSQL command line, we ca...
1 主备发生switchover切换,主库为ogg源端 发生主备switchover切换后,在主库的ogg源端extract进程会abend,出现错误ERROROGG-00662 OCI Error ORA-16456: switchover to standby in progress or completed 恢复方式一:将ogg软件拷贝到新的主节点,继续在新主库使用集成模式进行抽取 ...