More universal way is to set search_path (should work in PostgreSQL 7.x and above):
SET search_path TO myschema;
Note that set schema myschema is an alias to above command that is not available in 8.x.
See also: http://www.postgresql.org/docs/9.3/static/ddl-schemas.html
Answer from Nux on Stack OverflowMore universal way is to set search_path (should work in PostgreSQL 7.x and above):
SET search_path TO myschema;
Note that set schema myschema is an alias to above command that is not available in 8.x.
See also: http://www.postgresql.org/docs/9.3/static/ddl-schemas.html
You can create one file that contains the set schema ... statement and then include the actual file you want to run:
Create a file run_insert.sql:
set schema 'my_schema_01';
\i myInsertFile.sql
Then call this using:
psql -d myDataBase -a -f run_insert.sql
Why is Postgre SQL asking me to specify a schema when I want to select a column?
Specify Postgres schema
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For example I have a database with 2 schemas, public & shop and I want to select the table of a column
SELECT * FROM payment
and I get this error SQL state: 42P01
Yet if I use the Schema shop
SELECT * FROM shop.payment
There is no error,
Yet on other database that I am working with that has also 1 schema and public, yet I don't need to specify the schema name, why is this?
For example
SELECT * FROM payment
works perfectly in that database.
Why is this?
You can do it in 2 ways:
SET search_path = my_schema, "$user", public; -- For current session only
ALTER ROLE your_role SET search_path = my_schema, "$user", public; -- Persistent, for role
You can also set it for whole database, same way as for role.
EDIT: Just to explain what this does - it will change where and in what order Postgres will search for objects matching object identifiers that did not get prefixed with schema name.
You can set search_path for server 
I have tried to create table in pgAdmin4 in a certain designated schema.
However I always come across the following error
ERROR: no schema has been selected to create in
LINE 4: CREATE TABLE concept (
^which is very annoying.
Can I set a default schema where I do not have to alter all the SQL commands?
I am copy-pasta-ing a bunch of SQL to set up a database, I just do no want to change stuff so often.
I tried
set search_path='eat_my_default_schema';
it just does not work well
Thanks!
SET search_path TO myschema, morepaths , $supports_also_so_variables.
If i am making db schema and tables for app that can have multiple installations i usually create scripts for ; set search path... ; create tablee xxx style ; just in case i need to deploy same app twice into same db and have own namespace for them.
set search_path is set for session, so if you have strange problems when using some app, then app kills session after every query
I'm as annoyed that people don't seem to understand the question/problem, as I myself have this question, like:
Where in pgAdmin4 do I set session settings/variables like search_path for all the queries?
No, I don't want (in these case(s) ) include it in the query as I want to copy-paste use elsewhere where the schema names a re a tad different
No, I don't want it in the top of the query, as it messes with things explain, as I want it to be set every time I reconnect for this server during these tests.
In PostgreSQL the system determines which table is meant by following a search path, which is a list of schemas to look in.
The first matching table in the search path is taken to be the one wanted, otherwise, if there is no match a error is raised, even if matching table names exist in other schemas in the database.
To show the current search path you can use the following command:
SHOW search_path;
And to put the new schema in the path, you could use:
SET search_path TO myschema;
Or if you want multiple schemas:
SET search_path TO myschema, public;
Reference: https://www.postgresql.org/docs/current/static/ddl-schemas.html
\l - Display database
\c - Connect to database
\dn - List schemas
\dt - List tables inside public schemas
\dt schema1.* - List tables inside a particular schema.
For example: 'schema1'.