centos7怎么打开postgresql

设置开机启动，并启动服务

systemctl enable postgresql-9.4.service

初始化数据库/usr/pgsql-9.4/bin/postgresql94-setup initdb 然后，

启动数据库：systemctl start postgresql-9.4.service

查看进程是否正常启动，开启远程访问

修改用户密码，用命令su到用户上，如下图

将postgresq加入防火墙，新建文件/usr/lib/firewalld/services/postgresql.xml如下图 *** 作：

重启服务systemctl restart postgresql-9.4.service，进行基本的数据库 *** 作，就是使用一般的SQL语言

PostgreSQL数据库手动初始化步骤：

1、创建用户postgres,密码同样是postgres:

net user postgres postgres /add

2、在数据库根目录下建立data目录：

C:\Program Files\PostgreSQL\9.3>md data

3、去掉administrator对data目录的权限：

C:\Program Files\PostgreSQL\9.3>cacls data /e /t /r administrator

处理的目录: C:\Program Files\PostgreSQL\9.3\data

4、将data目录的权限赋给postgres用户：

C:\Program Files\PostgreSQL\9.3>cacls data /e /t /g postgres:C

处理的目录: C:\Program Files\PostgreSQL\9.3\data

5、用postgres用户打开cmd

C:\Program Files\PostgreSQL\9.3>runas /user:postgres cmd.exe

输入 postgres 的密码:

试图将 cmd.exe 作为用户 "SURE-PC\postgres" 启动...

6、进行初始化，初始化用户为postgres,字符集为utf8，locale为C：

C:\Program Files\PostgreSQL\9.3\bin>initdb.exe -D ../data -E utf8 --locale C -U

postgres

The files belonging to this database system will be owned by user "postgres".

This user must also own the server process.

The database cluster will be initialized with locale "C".

The default text search configuration will be set to "english".

Data page checksums are disabled.

fixing permissions on existing directory ../data ... ok

creating subdirectories ... ok

selecting default max_connections ... 100

selecting default shared_buffers ... 128MB

creating configuration files ... ok

creating template1 database in ../data/base/1 ... ok

initializing pg_authid ... ok

initializing dependencies ... ok

creating system views ... ok

loading system objects' descriptions ... ok

creating collations ... not supported on this platform

creating conversions ... ok

creating dictionaries ... ok

setting privileges on built-in objects ... ok

creating information schema ... ok

loading PL/pgSQL server-side language ... ok

vacuuming database template1 ... ok

copying template1 to template0 ... ok

copying template1 to postgres ... ok

syncing data to disk ... ok

WARNING: enabling "trust" authentication for local connections

You can change this by editing pg_hba.conf or using the option -A, or

--auth-local and --auth-host, the next time you run initdb.

Success. You can now start the database server using:

"postgres" -D "../data"

or

"pg_ctl" -D "../data" -l logfile start

C:\Program Files\PostgreSQL\9.3\bin>

7、启动数据库，进入客户端：

C:\Program Files\PostgreSQL\9.3\bin>"pg_ctl" -D "../data" start

server starting

C:\Program Files\PostgreSQL\9.3\bin>LOG: database system was shut down at 2014-

09-18 10:19:54 HKT

LOG: autovacuum launcher started

C:\Program Files\PostgreSQL\9.3\bin>LOG: database system is ready to accept con

nections

C:\Program Files\PostgreSQL\9.3\bin>psql.exe

psql (9.3.5)

Type "help" for help.

postgres=#

8、初始化完成。

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