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40 lines
1.7 KiB
Text
40 lines
1.7 KiB
Text
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# ubuntu create postgres database
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sudo su - postgres
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psql
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create database mspt_db;
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create user mstp_user with encrypted password 'mstp_access';
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grant all privileges on database mspt_db to mstp_user;
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# Postgres Essentials
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sudo su postgres || sudo –i –u postgres psql
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psql
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\l List all databases
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\dt *. List all tables and schemas
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\c <databas>; Connect to database
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\l+
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\conninfo Current database connection info
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\du list all users
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create database <bd name>;
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create user <username> with [encrypted | SUPERUSER] password <password>;
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grand all priviledges on database <database> to <username>;
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REINDEX [ ( VERBOSE ) ] { INDEX | TABLE | SCHEMA | DATABASE | SYSTEM } <name>;
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**maintanace** without table locking
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connect to every database and run .:$ VACUUM;
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**maintanace** with table locking
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1. REINDEX SYSTEM <database name>;
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2. VACUUM FULL <table name>, REINDEX TABLE <table name>; for every data table (non system table)
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**backupa and restore**
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pg_dump dbname > dumpfile Backuup
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pg_dump -h host1 dbname | psql -h host2 dbname Dump database from one server to another
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psql dbname < dumpfile || psql --set ON_ERROR_STOP=on dbname < dumpfile [--single-transaction] Restore
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pg_dumpall > dumpfile Dump all databases at once
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psql -f dumpfile postgres Restore databases dumpled with pd_dumpall
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pg_dump dbname | gzip > filename.gz handling large files
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gunzip -c filename.gz | psql dbname || cat filename.gz | gunzip | psql dbname to restore large files
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pg_dump dbname | split -b 1m - filename split files to accepable size e.b 1mb
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cat filename* | psql dbname restore split files
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