[commands] show help on backslash commands \? options show help on psql command-line options \? variables show help on special variables \h [NAME] help on syntax of SQL commands, * for all commandsQuery Buffer \e [FILE] [LINE] edit the query buffer (or file) with...
This short tutorial will show you how to connect to a PostgreSQL database server from the Linux command line. Instructions are included for Ubuntu, Fedora, and Arch Linux. The PostgreSQL Client –psqlCommand To connect to a PostgreSQL database server from the Linux command, you need to install...
This will log you into the PostgreSQL prompt, and from here you are free to interact with the database management system right away. Exit out of the PostgreSQL prompt by typing: \q This will bring you back to thepostgresLinux command prompt. ...
之前的 gitlab 可以对接 mysql 也可以对接PostgreSQL,但是官网推荐使用PostgreSQL作为其后端数据库,因为使用PostgreSQL就可以使用所有的 gitlab 特性,而如果使用 mysql ,部分特性将会无法正常工作,我想应该是数据库层面的特性导致的这种差异吧,PostgreSQL有更为丰富的特性支持 这里对PostgreSQL的安装做一个简单的演示,详细特性...
log_line_prefix='%m [%p] 'log_lock_waits=on log_statement='ddl'# 主库设置完成后,需要root用户重启PG服务才能使以上配置生效 systemctl daemon-reload systemctl restart postgresql su-postgres psql # 主库创建具有流复制权限的用户replicaCREATEuser replica login replication encrypted password'replication';...
postgres=#selectname,settingfrompg_settingswheresource='command line'; name| setting ---+--- cluster_name | perconapg_cluster hot_standby |on listen_addresses | 0.0.0.0 max_connections | 100 max_locks_per_transaction | 64 max_prepared
log_line_prefix = '%a-%u-%h-%m' # 这是一个printf风格的字符串,它在每个日志行的开头输出。%字符开始"转义序列",它将被按照下文描述的替换成状态信息。未识别的转义被忽略。 log_lock_waits = on # 控制当一个会话为获得一个锁等到超过deadlock_timeout时,是否要产生一个日志消息。
In this chapter, we looked at some of the tools we have at our disposal for getting the most out of PostgreSQL. The standard distribution comes with the command-line tool, psql, which is capable of carrying out most of the operations we need for creating and maintaining databases. Database...
CREATE TABLE pg_log ( log_time timestamp(3) with time zone, user_name text, database_name text, process_id integer, connection_from text, session_id text, session_line_num bigint, command_tag text, session_start_time timestamp with time zone, virtual_transaction_id text, transaction_id...
hrdb=#selectuser;user---tony(1row)hrdb=#createtablet(idint);ERROR:commandCREATETABLEisdisabledCONTEXT:PL/pgSQLfunctionabort_any_command()line4atRAISE ALTER EVENT TRIGGER语句可以启用/禁用事件触发器或者修改触发器的名称等: ALTEREVENTTRIGGERnameDISABLE;ALTEREVENTTRIGGERnameENABLE;ALTEREVENTTRIGGERnameRENAMETO...