使用pg_dump导出postgresql数据
参考：如何使用 PostgreSQL 进行数据迁移和整合？
导出命令
pg_dump -U username -d dbname -a --inserts -f backup.sql
- -a 只导出数据，不导出schema
- --inserts 将数据转储为INSERT命令，而不是COPY
点击查看代码
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
--no-sync do not wait for changes to be written safely to disk
-?, --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
-B, --no-blobs exclude large objects in dump
-c, --clean clean (drop) database objects before recreating
-C, --create include commands to create database in dump
-e, --extension=PATTERN dump the specified extension(s) only
-E, --encoding=ENCODING dump the data in encoding ENCODING
-n, --schema=PATTERN dump the specified schema(s) only
-N, --exclude-schema=PATTERN do NOT dump the specified schema(s)
-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=PATTERN dump the specified table(s) only
-T, --exclude-table=PATTERN do NOT dump the specified 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=PATTERN do NOT dump data for the specified table(s)
--extra-float-digits=NUM override default setting for extra_float_digits
--if-exists use IF EXISTS when dropping objects
--include-foreign-data=PATTERN
include data of foreign tables on foreign
servers matching PATTERN
--inserts dump data as INSERT commands, rather than COPY
--load-via-partition-root load partitions via the root table
--no-comments do not dump comments
--no-publications do not dump publications
--no-security-labels do not dump security label assignments
--no-subscriptions do not dump subscriptions
--no-table-access-method do not dump table access methods
--no-tablespaces do not dump tablespace assignments
--no-toast-compression do not dump TOAST compression methods
--no-unlogged-table-data do not dump unlogged table data
--on-conflict-do-nothing add ON CONFLICT DO NOTHING to INSERT commands
--quote-all-identifiers quote all identifiers, even if not key words
--rows-per-insert=NROWS number of rows per INSERT; implies --inserts
--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
--strict-names require table and/or schema include patterns to
match at least one entity each
--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.
导入数据执行：
psql -U username -d dbname -f backup.sql
修改指定表数据：
1.连接postgres
psql -U postgres -p 5432
2.连接指定库
\c ranger
3.查询所有表
\dt
4.查询数据
select * from public.x_service_config_map;
5.修改数据
UPDATE x_service_config_map SET config_value = 'http://192.169.40.64:8088' WHERE id = 26;