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Add Dump And Restore A Database as a postgres til

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jbranchaud
2016-05-08 12:07:04 -05:00
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README.md
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@@ -7,7 +7,7 @@ variety of languages and technologies. These are things that don't really
warrant a full blog post. These are mostly things I learn by pairing with warrant a full blog post. These are mostly things I learn by pairing with
smart people at [Hashrocket](http://hashrocket.com/). smart people at [Hashrocket](http://hashrocket.com/).
_411 TILs and counting..._ _412 TILs and counting..._
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- [Day Of Week For A Date](postgres/day-of-week-for-a-date.md) - [Day Of Week For A Date](postgres/day-of-week-for-a-date.md)
- [Default Schema](postgres/default-schema.md) - [Default Schema](postgres/default-schema.md)
- [Defining Arrays](postgres/defining-arrays.md) - [Defining Arrays](postgres/defining-arrays.md)
- [Dump And Restore A Database](postgres/dump-and-restore-a-database.md)
- [Edit Existing Functions](postgres/edit-existing-functions.md) - [Edit Existing Functions](postgres/edit-existing-functions.md)
- [Escaping A Quote In A String](postgres/escaping-a-quote-in-a-string.md) - [Escaping A Quote In A String](postgres/escaping-a-quote-in-a-string.md)
- [Export Query Results To A CSV](postgres/export-query-results-to-a-csv.md) - [Export Query Results To A CSV](postgres/export-query-results-to-a-csv.md)

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postgres/dump-and-restore-a-database.md Normal file
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# Dump And Restore A Database
PostgreSQL comes with two command-line utilities for dumping and then
restoring a database -- `pg_dump` and `pg_restore`, respectively.
Using the `pg_dump` with the `-Fc` flag will create a dump of the given
database in a custom format. The output of this command can be redirected
into a file (the `.dump` extension is a standard convention):
```bash
$ pg_dump -Fc my_database > my_database.dump
```
Using the custom format option provides a couple benefits. The output is
significantly compressed in comparison to a generic SQL dump. The dump and
restoration is more flexible. Lastly, the dump can be performed in parallel
if your machine has multiple cores to work with. Likewise, the restoration
can be done in parallel with multiple jobs.
To restore the dump, create a fresh database and then use `pg_restore`:
```bash
$ createdb my_new_database
$ pg_restore -d my_new_database my_database.dump
```
See the
[`pg_dump` docs](http://www.postgresql.org/docs/current/static/app-pgdump.html)
and [`pg_restore`
docs](http://www.postgresql.org/docs/current/static/app-pgrestore.html)
for more details.