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mLine 4:
Line 4: − + Line 13:
Line 13: − + − # IPv4 local connections:+ − host all all 127.0.0.1/32 md5+ − # IPv6 local connections:+ − host all all ::1/128 md5</nowiki>+ Line 33:
Line 33: − CREATE TABLE table_name (+ − column_name1 col_type (field_length) column_constraints,+ − column_name2 col_type (field_length),+ − column_name3 col_type (field_length)+ − );+ − + − DROP TABLE table_name;</nowiki>+ + + + + + + + + + + + + Line 112:
Line 124: − \c template0+ − update pg_database set datistemplate = FALSE where datname = 'template1';+ − drop database template1;+ − create database template1 with template = template0 encoding = 'UTF8';+ − update pg_database set datistemplate = TRUE where datname = 'template1';+ − \c template1+ − update pg_database set datallowconn = FALSE where datname = 'template0';</nowiki>+
→CREATE TABLE / DROP TABLE
sudo apt install postgresql postgresql-contrib
sudo apt install postgresql postgresql-contrib
== Data directory ==
==Data directory==
<code>/var/lib/postgresql</code>
<code>/var/lib/postgresql</code>
<br />
<br />
Example:
Example:
<nowiki> TYPE DATABASE USER CIDR-ADDRESS METHOD
<nowiki> TYPE DATABASE USER CIDR-ADDRESS METHOD
# IPv4 local connections:
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5</nowiki>
2.- Change the Listen Address in postgresql.conf
2.- Change the Listen Address in postgresql.conf
==CREATE TABLE / DROP TABLE==
==CREATE TABLE / DROP TABLE==
<nowiki>
<nowiki>
CREATE TABLE table_name (
column_name1 col_type (field_length) column_constraints,
column_name2 col_type (field_length),
column_name3 col_type (field_length)
);
DROP TABLE table_name;</nowiki>
=== Drop all tables ===
<syntaxhighlight lang="sql">
DO $$ DECLARE
r RECORD;
BEGIN
FOR r IN (SELECT tablename FROM pg_tables WHERE schemaname = 'public') LOOP
EXECUTE 'DROP TABLE IF EXISTS public.' || quote_ident(r.tablename) || ' CASCADE';
END LOOP;
END $$;
</syntaxhighlight>
==List users==
==List users==
\du
\du
Fix:
Fix:
<nowiki>update pg_database set datallowconn = TRUE where datname = 'template0';
<nowiki>update pg_database set datallowconn = TRUE where datname = 'template0';
\c template0
update pg_database set datistemplate = FALSE where datname = 'template1';
drop database template1;
create database template1 with template = template0 encoding = 'UTF8';
update pg_database set datistemplate = TRUE where datname = 'template1';
\c template1
update pg_database set datallowconn = FALSE where datname = 'template0';</nowiki>