User anzeigen

SELECT u.usename AS "User name",
  u.usesysid AS "User ID",
  CASE WHEN u.usesuper AND u.usecreatedb THEN CAST('superuser, create
database' AS pg_catalog.text)
       WHEN u.usesuper THEN CAST('superuser' AS pg_catalog.text)
       WHEN u.usecreatedb THEN CAST('create database' AS
pg_catalog.text)
       ELSE CAST('' AS pg_catalog.text)
  END AS "Attributes"
FROM pg_catalog.pg_user u
ORDER BY 1;

Import von CSV in Tabelle

COPY <tableName>  FROM '<path/to/file>' DELIMITER ',' CSV;

Import von SQL Datei

psql -U  -h  -d  -f FileMitStatements.sql

Find FOREIGN KEY

SELECT
    tc.constraint_name, tc.table_name, kcu.column_name, 
    ccu.table_name AS foreign_table_name,
    ccu.column_name AS foreign_column_name 
FROM 
    information_schema.table_constraints AS tc 
    JOIN information_schema.key_column_usage AS kcu
      ON tc.constraint_name = kcu.constraint_name
    JOIN information_schema.constraint_column_usage AS ccu
      ON ccu.constraint_name = tc.constraint_name
--WHERE constraint_type = 'FOREIGN KEY' AND tc.table_name='mytable';

Kommentar hinterlassen

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