PG电子后台设置指南，从新手到专家pg电子后台设置

本文目录导读：

1. PG电子简介
2. PG电子后台设置步骤

在现代企业级应用开发中,PG电子（PostgreSQL电子）作为功能强大、安全稳定的数据库解决方案，被广泛应用于企业后台系统、电子商务平台、企业资源计划（ERP）系统等场景，配置PG电子后台系统需要一定的技术积累和经验，本文将从新手到专家的角度，详细讲解PG电子后台设置的全过程。

PG电子简介

PG电子（PostgreSQL电子）是一个开放源代码的数据库系统，以其高性能、高可用性和安全性著称，它广泛应用于企业级应用中，支持多种操作系统和数据库协议，能够处理复杂的事务处理和高并发场景。

1 PG电子的优势

• 高性能：PG电子采用关系型数据库模型，支持复杂的查询优化和并行处理。
• 高可用性：支持容灾备份、集群部署和自动恢复功能。
• 安全性：内置强大的安全机制，支持用户认证、权限管理、加密通信等功能。
• 扩展性：支持增量式扩展，可以根据实际需求增加存储空间和功能。

2 PG电子的常见配置项

在配置PG电子后台系统时,需要关注以下几个关键方面：

• 数据库连接参数
• 数据库服务参数
• 用户管理配置
• 数据库安全设置

PG电子后台设置步骤

1 配置数据库连接参数

1.1 配置PostgreSQL服务器参数

在服务器配置文件（通常是/etc/postgresql/psql.conf）中，需要设置一些基础参数，以确保PostgreSQL能够正常运行。

[default]
host=127.0.0.1
port=5432
database=public
user=postgres
password=postgres
bind-address=127.0.0.1
log文件路径=/var/log/postgresql/postgresql.log
log文件大小=10M
log retention=7天

1.2 配置数据库服务参数

在/etc/postgresql/psql.conf中，还可以设置数据库服务相关的参数，

[psql]
start=now
workers=-1
heap=16M

• start=now：启动PostgreSQL服务。
• workers=-1：启动所有可用的进程。
• heap=16M：设置PostgreSQL进程的内存大小。

2 配置数据库服务

2.1 启动PostgreSQL服务

在Linux系统中,可以通过以下命令启动PostgreSQL服务：

sudo systemctl start postgresql

2.2 停止PostgreSQL服务

如果需要停止PostgreSQL服务,可以使用：

sudo systemctl stop postgresql

2.3 重启PostgreSQL服务

重启PostgreSQL服务可以使用：

sudo systemctl restart postgresql

3 用户管理配置

3.1 创建用户和角色

在PostgreSQL中,用户和角色的管理非常灵活，可以通过以下命令创建用户和角色：

sudo -u postgres psql
postgres=# CREATE USER user1 WITH PASSWORD 'securepassword';
postgres=# GRANT ALL PRIVILEGES ON DATABASE public TO user1;
postgres=# CREATE ROLE admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON SCHEMAs TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERs TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCESSES TO admin;
postgres=# GRANT ALL PRIVILEGES ON LOCKS TO admin;
postgres=# GRANT ALL PRIVILEGES ON REGIONS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLESPACEs TO admin;
postgres=# GRANT ALL PRIVILEGES ON TABLES TO admin;
postgres=# GRANT ALL PRIVILEGES ON COLUMNS TO admin;
postgres=# GRANT ALL PRIVILEGES ON TRIGGERS TO admin;
postgres=# GRANT ALL PRIVILEGES ON VIEWS TO admin;
postgres=# GRANT ALL PRIVILEGES ON SEQUENCES TO admin;
postgres=# GRANT ALL PRIVILEGES ON PROCES