Procedure for creating a new postgres user with proper attributes:
Use either:
CREATE ROLE name LOGIN;
or
CREATE USER name;
(CREATE USER is equivalent to CREATE ROLE except that CREATE USER assumes LOGIN by default)
Some Important Attribute and Privilege Changes for Users:
to allow database creation for user:
ALTER ROLE name CREATEDB;
to set a password for user:
ALTER ROLE name PASSWORD 'password';
to grant/revoke public access on a table or database can replace ALL with select, update, delete, etc:
GRANT/REVOKE ALL on tablename to user;
Database Maintenece and Backup Procedures:
Performing an SQL dump and retrieving the dump(generates SQL files for all tables in database and dumps to a outfile for backup):
pg_dump dbname > outfile;
psql dbname < infile;
or use:
pg_dumpall > outfile;
psql -f infile postgres;
Performing VACUUM maintentence to recover disk space and update database statistics:
VACUUM ANALYZE;
or just VACUUM;
Reindexing:
REINDEX;
These tasks should be performed every week to make sure our system is backed up and running optimally.
Wednesday, October 8, 2008
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