postgresql使用pg_dump备份与恢复

postgresql使用pg_dump备份与恢复

pg_dump备份

范例

pg_dump -F c  -Z 5 -v -t rpt_df580_bh_funnel  -f "/home/postgres/rpt_data/rpt_df580_bh_funnel.dump" dmpdb

说明

* -F or –format:指定导出的格式为c|d|t|p，c代表custom, d代表directory, t代表tar, p代表plain text。c和t可以被pgAdmin导入。

* -v or –verbose:显示处理详情

* -Z or –compress:被压缩格式的压缩压缩比0-9

* -t or –table:指定被导出的表

* -f or –file:指定导出文件名

* dmpdb 被导出的数据库名字

pg_dump还原

范例

pg_restore --host localhost --port 5432 --username "postgres" --dbname "dmpdb" --role "postgres" --no-password  --schema public --verbose "rpt_df580_bh_funnel.dump"

说明

* –host or -h :主机

* –port or -p:端口

* –username or -U :用户

* –dbname or -d:数据库

* –role :角色

* –no-password or -w:无密码模式

* –password or -W:需要输入密码

* –schema or -s :schema

* -v or –verbose:显示处理详情

附录

pg_dump版本

~$ pg_dump --version
pg_dump (PostgreSQL) 9.5.5

查看pd_dump帮助

~$ pg_dump --help
pg_dump dumps a database as a text file or to other formats.

Usage:
pg_dump [OPTION]... [DBNAME]

General options:
-f, --file=FILENAME          output file or directory name
-F, --format=c|d|t|p         output file format (custom, directory, tar,
plain text (default))
-j, --jobs=NUM               use this many parallel jobs to dump
-v, --verbose                verbose mode
-V, --version                output version information, then exit
-Z, --compress=0-9           compression level for compressed formats
--lock-wait-timeout=TIMEOUT  fail after waiting TIMEOUT for a table lock
-?, --help                   show this help, then exit

Options controlling the output content:
-a, --data-only              dump only the data, not the schema
-b, --blobs                  include large objects in dump
-c, --clean                  clean (drop) database objects before recreating
-C, --create                 include commands to create database in dump
-E, --encoding=ENCODING      dump the data in encoding ENCODING
-n, --schema=SCHEMA          dump the named schema(s) only
-N, --exclude-schema=SCHEMA  do NOT dump the named schema(s)
-o, --oids                   include OIDs in dump
-O, --no-owner               skip restoration of object ownership in
plain-text format
-s, --schema-only            dump only the schema, no data
-S, --superuser=NAME         superuser user name to use in plain-text format
-t, --table=TABLE            dump the named table(s) only
-T, --exclude-table=TABLE    do NOT dump the named table(s)
-x, --no-privileges          do not dump privileges (grant/revoke)
--binary-upgrade             for use by upgrade utilities only
--column-inserts             dump data as INSERT commands with column names
--disable-dollar-quoting     disable dollar quoting, use SQL standard quoting
--disable-triggers           disable triggers during data-only restore
--enable-row-security        enable row security (dump only content user has
access to)
--exclude-table-data=TABLE   do NOT dump data for the named table(s)
--if-exists                  use IF EXISTS when dropping objects
--inserts                    dump data as INSERT commands, rather than COPY
--no-security-labels         do not dump security label assignments
--no-synchronized-snapshots  do not use synchronized snapshots in parallel jobs
--no-tablespaces             do not dump tablespace assignments
--no-unlogged-table-data     do not dump unlogged table data
--quote-all-identifiers      quote all identifiers, even if not key words
--section=SECTION            dump named section (pre-data, data, or post-data)
--serializable-deferrable    wait until the dump can run without anomalies
--snapshot=SNAPSHOT          use given snapshot for the dump
--use-set-session-authorization
use SET SESSION AUTHORIZATION command
4000
s instead of
ALTER OWNER commands to set ownership

Connection options:
-d, --dbname=DBNAME      database to dump
-h, --host=HOSTNAME      database server host or socket directory
-p, --port=PORT          database server port number
-U, --username=NAME      connect as specified database user
-w, --no-password        never prompt for password
-W, --password           force password prompt (should happen automatically)
--role=ROLENAME          do SET ROLE before dump

If no database name is supplied, then the PGDATABASE environment
variable value is used.

Report bugs to <pgsql-bugs@postgresql.org>.