Add Export Query Results To A CSV as a postgres til.

README.md

@@ -109,6 +109,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [Default Schema](postgres/default-schema.md)
 - [Defining Arrays](postgres/defining-arrays.md)
 - [Edit Existing Functions](postgres/edit-existing-functions.md)
+- [Export Query Results To A CSV](postgres/export-query-results-to-a-csv.md)
 - [Extracting Nested JSON Data](postgres/extracting-nested-json-data.md)
 - [Find The Data Directory](postgres/find-the-data-directory.md)
 - [Fizzbuzz With Common Table Expressions](postgres/fizzbuzz-with-common-table-expressions.md)

postgres/export-query-results-to-a-csv.md

@@ -0,0 +1,31 @@
+# Export Query Results To A CSV
+
+Digging through the results of queries in Postgres's `psql` is great if you
+are a programmer, but eventually someone without the skills or access may
+need to check out that data. Exporting the results of a query to CSV is a
+friendly way to share said results because most people will have a program
+on their computer that can read a CSV file.
+
+For example, exporting all your pokemon to `/tmp/pokemon_dump.csv` can be
+accomplished with:
+
+```sql
+copy (select * from pokemons) to '/tmp/pokemon_dump.csv' csv;
+```
+
+Because we are grabbing the entire table, we can just specify the table name
+instead of using a subquery:
+
+
+```sql
+copy pokemons to '/tmp/pokemon_dump.csv' csv;
+```
+
+Include the column names as headers to the CSV file with the `header`
+keyword:
+
+```sql
+copy (select * from pokemons) to '/tmp/pokemon_dump.csv' csv header;
+```
+
+[source](http://stackoverflow.com/questions/1120109/export-postgres-table-to-csv-file-with-headings)