PostgreSQL创建用户,数据库,表
使用createuser来创建用户
[postgres@web1 ~]$ /data/pgsql/bin/createuser --help
createuser creates a new PostgreSQL role.
Usage:
createuser [OPTION]... [ROLENAME]
Options:
-c, --connection-limit=N connection limit for role (default: no limit)
-d, --createdb role can create new databases
-D, --no-createdb role cannot create databases (default)
-e, --echo show the commands being sent to the server
-E, --encrypted encrypt stored password
-i, --inherit role inherits privileges of roles it is a
member of (default)
-I, --no-inherit role does not inherit privileges
-l, --login role can login (default)
-L, --no-login role cannot login
-N, --unencrypted do not encrypt stored password
-P, --pwprompt assign a password to new role
-r, --createrole role can create new roles
-R, --no-createrole role cannot create roles (default)
-s, --superuser role will be superuser
-S, --no-superuser role will not be superuser (default)
-V, --version output version information, then exit
--interactive prompt for missing role name and attributes rather
than using defaults
--replication role can initiate replication
--no-replication role cannot initiate replication
-?, --help show this help, then exit
Connection options:
-h, --host=HOSTNAME database server host or socket directory
-p, --port=PORT database server port
-U, --username=USERNAME user name to connect as (not the one to create)
-w, --no-password never prompt for password
-W, --password force password prompt
Report bugs to <[email protected]>.
[postgres@web1 ~]$
[postgres@web1 ~]$
[postgres@web1 ~]$ /data/pgsql/bin/createuser zhongwc -P
Enter password for new role:
Enter it again:
[postgres@web1 ~]$
[postgres@web1 ~]$ /data/pgsql/bin/createdb --help
createdb creates a PostgreSQL database.
Usage:
createdb [OPTION]... [DBNAME] [DESCRIPTION]
Options:
-D, --tablespace=TABLESPACE default tablespace for the database
-e, --echo show the commands being sent to the server
-E, --encoding=ENCODING encoding for the database
-l, --locale=LOCALE locale settings for the database
--lc-collate=LOCALE LC_COLLATE setting for the database
--lc-ctype=LOCALE LC_CTYPE setting for the database
-O, --owner=OWNER database user to own the new database
-T, --template=TEMPLATE template database to copy
-V, --version output version information, then exit
-?, --help show this help, then exit
Connection options:
-h, --host=HOSTNAME database server host or socket directory
-p, --port=PORT database server port
-U, --username=USERNAME user name to connect as
-w, --no-password never prompt for password
-W, --password force password prompt
--maintenance-db=DBNAME alternate maintenance database
By default, a database with the same name as the current user is created.
Report bugs to <[email protected]>.
[postgres@web1 ~]$
[postgres@web1 ~]$
[postgres@web1 ~]$ /data/pgsql/bin/createdb zwcdb
[postgres@web1 ~]$ psql -U zhongwc -d zwcdb
psql (9.2.2)
Type "help" for help.
zwcdb=> help
You are using psql, the command-line interface to PostgreSQL.
Type: \copyright for distribution terms
\h for help with SQL commands
\? for help with psql commands
\g or terminate with semicolon to execute query
\q to quit
zwcdb=>
创建表
[postgres@web1 data]$ psql -U zhongwc -d zwcdb -h 192.168.1.203 -p 1521 Password for user zhongwc: psql (9.2.2) Type "help" for help. zwcdb=> create table t_zhongwc(pid integer,pname varchar(32),constraint zhongwc_pid_pk primary key(pid)); NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "zhongwc_pid_pk" for table "t_zhongwc" CREATE TABLE zwcdb=> zwcdb=> select * from t_zhongwc; pid | pname -----+------- (0 rows)
删除表
zwcdb=> drop table t_zhongwc; DROP TABLE zwcdb=> drop table t_zhongwc; ERROR: table "t_zhongwc" does not exist