只看10条数据 select * from dongchazhedata2 limit 10; 以某一字段排序 select * from dongchazhedata2 order by date; 查询大于某一日期的数据; select * from dongchazhedata where date >= '2024-05-19'; 启动数据库命令 sudo serv
psql: FATAL: Ident authentication failed for user"mypguser" 请编辑你的pg_hba.conf,这个文件一般位于/etc/postgresql/X.Y/main/pg_hba.conf,X.Y是你的PostgreSQL的版本号,将下面行的peer改为trust: local all all trust #
元命令 postgres=# \?General\bind [PARAM]... set query parameters\copyright show PostgreSQL usage and distribution terms\crosstabview [COLUMNS] execute query and display result in
postgresql数据库大版本升级完成后,用psql进入数据库是出现以下警告 [postgres@node1 pgsql]$ psql psql (9.4.4, server 9.6.1) WARNING: psql major version 9.4, server major version 9.6. Some psql features might not work.