postgres delete table

POSTGRES-XL Cluster construction and testing CentOS6.5 192.168.0.101 CentOS6.5 192.168.0.102 CentOS6.5 192.168.0.103 CentOS6.5 192.168.0.104 First, host planning Cnode1 (GTM) cnode2 (Gtm_proxy,coordinator,datanode) cnode3

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

"Editor's note" as an open source object-relational database, Postgres has been loved by many developers. Recently, Postgres officially released version 9.5, which has been a lot of repair and functional improvements. This article will share 10

PostgreSQL provides developers with a rich set of tools to manage concurrent access to data. Internally, data consistency is maintained by using a multi-version model (multi-version concurrency control, MVCC). This means that each SQL statement sees

Postgres uses returning to implement last_insert_id of mysql. Today, I am asked if postgres has inserted a value like mysql and returned the inserted value. This is yes and has higher scalability. Example: [S @ localhost ~] $ Psqlpsql (9.2.4)

First, the environment$ psql--versionpsql (PostgreSQL) 9.4.4 As we all know, superuser privileges are too large for the security of the database, for non-administrator accounts, you need to create a normal user. Second, the grammar$ psql psql  (9.4.

--View current Server databaseSELECTDatname fromPg_database--view the created user tableSELECT * fromPg_stat_user_tables--Create a databaseCREATE DATABASE"Fxsz_lt" withOWNER=postgresencoding='UTF8'tablespace=Pg_default--lc_collate= ' Chinese

1. Fully Automated backupNeed to install postgres (preferably the same version) on the backup machineIn the Postgres directory to create a password to save the file (plaintext, so confidentiality is important), if not established, because each

First, the environment#配置远程连接su postgres vim/var/lib/pgsql/9.4/data/postgresql.conf Edit configuration file listen_address= ' localhost ' before the comment # removed,  And the ' localhost ' should be ' * '; vim/etc/postgresql/8.2/main/pg_hba.conf

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