PostgreSQL 9.2 : Install2015/07/23

	Install PostgreSQL to configure database server.
[1]	Install and start PostgreSQL.

[root@dlp ~]#

yum -y install postgresql-server

[root@dlp ~]#

postgresql-setup initdb

Initializing database ... OK

[root@dlp ~]#

vi /var/lib/pgsql/data/postgresql.conf

# line 59: uncomment and change if allow accesses from remote hosts

listen_addresses = '

# line 395: uncomment and change if change log format

# the example below is [Date User DB ***] format

log_line_prefix = '

%t %u %d

[root@dlp ~]#

systemctl start postgresql

[root@dlp ~]#

systemctl enable postgresql

[2]	If Firewalld is running and also PostgreSQL is used from remote Hosts, allow service like follows.

[root@dlp ~]#

firewall-cmd --add-service=postgresql --permanent

success
[root@dlp ~]#

firewall-cmd --reload

success

[3]	Set PostgreSQL admin user's password and add a user and also add a test database.

# set password

[root@dlp ~]#

su - postgres

-bash-4.2$

psql -c "alter user postgres with password 'password'"

ALTER ROLE

# add DB user "cent" as an example

-bash-4.2$

createuser cent

# create a test database (owner is the user above)

-bash-4.2$

createdb testdb -O cent

[4]	Login as a user just added above and operate DataBase as test operation.

# show Databases

[cent@dlp ~]$

psql -l

                                  List of databases
   Name    |  Owner   | Encoding |   Collate   |    Ctype    |   Access privileg
es
-----------+----------+----------+-------------+-------------+------------------
-----
 postgres  | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 |
 template0 | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 | =c/postgres    +
           |          |          |             |             | postgres=CTc/postgres
 template1 | postgres | UTF8     | en_US.UTF-8 | en_US.UTF-8 | =c/postgres    +
           |          |          |             |             | postgres=CTc/postgres
 testdb    | cent     | UTF8     | en_US.UTF-8 | en_US.UTF-8 |
(4 rows)

# connect to test DB

[cent@dlp ~]$

psql testdb

psql (9.2.13)
Type "help" for help.

# set password

testdb=#

alter user cent with password 'password';

ALTER ROLE

# create a test table

testdb=#

create table test ( no int,name text );

CREATE TABLE

# insert test data

testdb=#

insert into test (no,name) values (1,'cent');

INSERT 0 1

# show tables

testdb=#

select * from test;

 no | name
----+-------
  1 | cent
(1 row)

# delete test table

testdb=#

drop table test;

DROP TABLE

# quit

testdb=#

# delete test database

[cent@dlp ~]$

dropdb testdb

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