PostgreSQL 實現登入及修改密碼操作
阿新 • • 發佈:2021-01-21
PostgreSQL登入
1、可通過客戶端pgAdmin III直接登入
2、可通過命令列
命令:psql -h 10.10.10.10 -U user -d postgres -p 5570
-h:資料庫IP
-U:登入使用者
-d:登入的資料庫
-p:登入埠
方法:進入postgreSQL的客戶端安裝目錄(我的安裝目錄:C:\Program Files\PostgreSQL\9.4\bin),執行psql命令,其中\q表示退出資料庫
修改密碼
直接執行以下sql即可修改密碼
alter user pguser with password 'new password';
補充:PostgreSQL修改密碼認證方式
我就廢話不多說了,大家還是直接看程式碼吧~
[postgres@postgres_vm ~]$ psql psql (12.4) Type "help" for help. postgres=# show password_encryption ; password_encryption --------------------- md5 (1 row) postgres=# select * from pg_authid where rolname='hr'; oid | rolname | rolsuper | rolinherit | rolcreaterole | rolcreatedb | rolcanlogin | rolreplication | rolbypassrls | rolconnlimit | r olpassword | rolvaliduntil -------+---------+----------+------------+---------------+-------------+-------------+----------------+--------------+--------------+-------------- -----------------------+--------------- 16386 | hr | f | t | f | f | t | f | f | -1 | md566ad2e6b6f adaa9fd11bfcab906e84c8 | (1 row) postgres=# set password_encryption to "scram-sha-256"; SET postgres=# select * from pg_authid where rolname='hr'; oid | rolname | rolsuper | rolinherit | rolcreaterole | rolcreatedb | rolcanlogin | rolreplication | rolbypassrls | rolconnlimit | r olpassword | rolvaliduntil -------+---------+----------+------------+---------------+-------------+-------------+----------------+--------------+--------------+-------------- -----------------------+--------------- 16386 | hr | f | t | f | f | t | f | f | -1 | md566ad2e6b6f adaa9fd11bfcab906e84c8 | (1 row) postgres=# alter user hr with password 'Abcd1234'; ALTER ROLE postgres=# select * from pg_authid where rolname='hr'; oid | rolname | rolsuper | rolinherit | rolcreaterole | rolcreatedb | rolcanlogin | rolreplication | rolbypassrls | rolconnlimit | rolpassword | rolvaliduntil -------+---------+----------+------------+---------------+-------------+-------------+----------------+--------------+--------------+-------------- -------------------------------------------------------------------------------------------------------------------------+--------------- 16386 | hr | f | t | f | f | t | f | f | -1 | SCRAM-SHA-256 $4096:dF5WnZnKGXen0mtqZeWldA==$2K8sshkEarHox93X5hmIjKSPxHecXDkjZ56erjIf+dU=:FBbY3+22nVXF83LbfK6DHBK2QpakJA/0RRI3oXs4cdI= | (1 row) postgres=#
以上為個人經驗,希望能給大家一個參考,也希望大家多多支援我們。如有錯誤或未考慮完全的地方,望不吝賜教。