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 commands 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.

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