To Generate a Dump file use the pg_dump tool to create a dump file from a database/tables from a PostgreSQL database, 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 name
-F, --format=c|t|p output file format (custom, tar, plain text)
-i, --ignore-version proceed even when server version mismatches
pg_dump version
-v, --verbose verbose mode
-Z, --compress=0-9 compression level for compressed formats
--help show this help, then exit
--version output version information, then exit
Options controlling the output content:
-a, --data-only dump only the data, not the schema
-c, --clean clean (drop) schema prior to create
-C, --create include commands to create database in dump
-d, --inserts dump data as INSERT, rather than COPY, commands
-D, --column-inserts dump data as INSERT commands with column names
-E, --encoding=ENCODING dump the data in encoding ENCODING
-n, --schema=SCHEMA dump the named schema only
-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 specify the superuser user name to use in
plain text format
-t, --table=TABLE dump the named table only
-x, --no-privileges do not dump privileges (grant/revoke)
-X disable-dollar-quoting, --disable-dollar-quoting
disable dollar quoting, use SQL standard quoting
-X disable-triggers, --disable-triggers
disable triggers during data-only restore
-X use-set-session-authorization, --use-set-session-authorization
use SESSION AUTHORIZATION commands instead of
OWNER TO commands
Connection options:
-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, --password force password prompt (should happen automatically)
If no database name is supplied, then the PGDATABASE environment
Example:
pg_dump --username=postgres mertech --table=CHPROD --file=chprod.sql --inserts
To load the dump file use the psql program:
Usage:
psql [OPTIONS]... [DBNAME [USERNAME]]
General options:
-d DBNAME specify database name to connect to (default: "Marcello")
-c COMMAND run only single command (SQL or internal) and exit
-f FILENAME execute commands from file, then exit
-l list available databases, then exit
-v NAME=VALUE set psql variable NAME to VALUE
-X do not read startup file (~/.psqlrc)
--help show this help, then exit
--version output version information, then exit
Input and output options:
-a echo all input from script
-e echo commands sent to server
-E display queries that internal commands generate
-q run quietly (no messages, only query output)
-o FILENAME send query results to file (or |pipe)
-n disable enhanced command line editing (readline)
-s single-step mode (confirm each query)
-S single-line mode (end of line terminates SQL command)
-L FILENAME send session log to file
Output format options:
-A unaligned table output mode (-P format=unaligned)
-H HTML table output mode (-P format=html)
-t print rows only (-P tuples_only)
-T TEXT set HTML table tag attributes (width, border) (-P tableattr=)
-x turn on expanded table output (-P expanded)
-P VAR[=ARG] set printing option VAR to ARG (see pset command)
-F STRING set field separator (default: "|") (-P fieldsep=)
-R STRING set record separator (default: newline) (-P recordsep=)
Connection options:
-h HOSTNAME database server host or socket directory (default: "local socket")
-p PORT database server port (default: "5432")
-U NAME database user name (default: "Marcello")
-W prompt for password (should happen automatically)
Example:
psql -d mytable postgres -f insert.sql
Mertech: Mar 29, 2024 8:53:00 AM
Mertech