Postgres log utility has to say that Postgres logs (pg_log, similar to the oracle alter file, rather than pg_xlog) are indeed flexible and feature-rich, the following are some management functions using ipvs logs. The parameters involved are in the
Today development found me, said their database connection is not up, may be too many connections, and then I log on to the server, and try to log into the database, is also an error:Psql:FATAL:sorry, too many clients alreadyIt is clear that the
Summary of Postgres operations in Ubuntu
1.Basic operation commands
After the installation is complete, PostgreSQL creates a database user account named Postgres by default. It is a super Administrator account like the root account of MySQL
SIGTERM
New connections are no longer allowed, but all active sessions are allowed to complete their work properly, and are closed only after all sessions have completed the task. This is smart off.
SIGINT
No new connections are allowed,
0. Remove unnecessary tables and stored procedures from the 200 server Setup database
DROP TABLE "Sensorpressure";DROP FUNCTION hex_to_int (text);DROP FUNCTION "Pressuredatatosensorpressure" ();
1. Back up 200 of the SETUPD database,:p g_dump-d-H
Recently the company requested to back up the database, so we looked up the comparative information. Don't say much nonsense, into the subject.Objective: To regularly back up the Postgres database under Ubuntu, and to pack and upload to the
Use CreateUser to create a user[Plain]View Plaincopyprint?
[Email protected] ~]$/data/pgsql/bin/createuser--help
CreateUser creates a new PostgreSQL role.
Usage:
CreateUser [OPTION] ... [ROLENAME]
Options:
-C,--connection-limit=n
Seven, Pg_dump:
Pg_dump is a tool for backing up the PostgreSQL database. It can even make a full, consistent backup when the database is being used concurrently, without blocking access to the database by other users. The dump format generated by
Installing PostgreSQL using RPM packages in Linux
Postgresql and MySQL are currently popular and active open source relational database systems. Compared with high-end Oracle commercial products, Postgresql and MyQL have much room for improvement in
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