I have 2 backup files and I want to merge all this data on my database.
I try to use pg_restore but when I use with the second database file I lost the first data set.
Look for my command:
pg_restore -U postgres -c --if-exists -d ravpacheco_db "C:\Users\ravpacheco\xpto1.backup"
I also search all options flags for pg_restore command but I can't find some usefull thing
My problem is with my pg_dump command. If I created a backup file only with data my restore will work
Now I'm using this pg_dump command
pg_dump --column-inserts --data-only --table=<table> <database>
I resolved my problem using this stackoverflow thread
Related
I have a dump file (size around 5 GB) which is taken via this command:
pg_dump -U postgres -p 5440 MYPRODDB > MYPRODDB_2022.dmp
The database consists multiple schemas (let's say Schema A,B,C and D) but i need to restore only one schema (schema A).
How can i achieve that? The command below didn't work and gave error:
pg_restore -U postgres -d MYPRODDB -n A -p 5440 < MYPRODDB_2022.dmp
pgrestore: error: input file appears to be a text format dump. please
use psql.
You cannot do that with a plain format dump. That's one of the reasons why you always use a different format unless you need an SQL script.
If you want to stick with a plain text dump:
pg_dump -U postgres -p 5440 -n A MYPRODDB > MYPRODDB_2022.dmp
psql -U postgres -d MYPRODDB -p 5440 -f MYPRODDB_2022.dmp
Though dumping back over the same database as above will throw errors unless you use --clean or its short form -c to create commands to drop existing objects before restoring them:
-c
--clean
Output commands to clean (drop) database objects prior to outputting the commands for creating them. (Unless --if-exists is also specified, restore might generate some harmless error messages, if any objects were not present in the destination database.)
This option is ignored when emitting an archive (non-text) output file. For the archive formats, you can specify the option when you call pg_restore.
Probably also a good idea to throw in --if-exists:
--if-exists
Use conditional commands (i.e., add an IF EXISTS clause) when cleaning database objects. This option is not valid unless --clean is also specified.
My question is similar to this I even vote up it, but unfortunately in my case I have text dump and I can not restore using pg_restore =(
zcat /home/kes/work/projects/bennet/db/bennet.sql.gz | \
pg_restore -h 127.0.0.1 -p 5432 -U bennet --no-owner --role=bennet -d bennet
pg_restore: error: input file appears to be a text format dump. Please use psql.
But psql has no role and no-owner options
Is there a way to restore text dump on different owner?
No. You have two options:
Manually edit the SQL script. This is cumbersom and error-prone.
Restore the complete dump to a new, empty scratch database using psql and dump that with --role and --no-owner as you need.
I want to restore a database from backup and rewrite all data that is there with backup data.
My current command is like this:
pg_restore -h localhost -U postgres -d dbName -v autobackup_file.dmp
How to restore and rewrite all data?
I've seen an option -c; is that the correct way?
And where should I put it in my command?
-c can be anywhere, e.g. immediately after pg_restore.
It will DROP all restored objects before restoring them, but it will not drop any objects that are not in the dump.
To drop and recreate the whole database so you get a clean copy, you can use -C -c.
I am a newbie and I have a postgresql large dump of type .sql and i want to import it. I am on Windows 10 and haven't been able to find solution.
I tried to restore using pgAdmin3 but it doesn't show .sql file while restoring. I also found few commands and tried them but nothing seems to work.
I also tried loading the datasource in IntelliJ DataGrid but it doesn't show the correct driver during the loading settings.
Can someone help?
First, figure out if the dump was created with pg_dumpall or pg_dump.
Dumps from pg_dumpall start with:
--
-- PostgreSQL database cluster dump
--
If the dump was created with pg_dump, find out if the -C option was used.
If yes, the dump will contain a line with a CREATE DATABASE statement.
To restore, use psql from the DOS box. I assume that psql is on your PATH.
A dump from pg_dumpall or pg_dump -C is restored with
psql -U postgres -d postgres -f dumpfile.sql
A dump from pg_dump without -C is restored with
psql -U postgres -d mydatabase -f dumpfile.sql
where mydatabase should be replaced with the name of the target database into which the dump should be restored.
am using Postgres EnterpriseDB 9.5.0.5
I have taken a schema dump by using the below command
pg_dump -n 'schema1' db1 > schema1.dump
Now i want to restore it in different database (db2) what is the command i have to use.
i tried
pg_restore -d DB2 schema1.dump;
but it is showing error
pg_restore: [archiver] input file does not appear to be a valid archiver
You have two choices:
if you include no -f option for pg_dump, it creates a sql script so then restore using psql, not pg_restore
You could add -fc to create a custom binary/compressed format and then use pg_restore as you are trying to do.
However pg_restore mostly converts the archive to an SQL script, so it is not useful when you start with an sql script.
pg_dump -Fc mydb > db.dump
pg_restore -c -d mydb db.dump