postgresql语法

登陆

psql -U user [-d dbname]

切换数据库,至关于mysql的use dbname

\c dbname

列举数据库，至关于mysql的show databases

\l

列举表，至关于mysql的show tables

\dt

查看表结构，至关于desc tblname,show columns from tbname

\d tblname

查看索引 

\di

导入

psql  -U username -W -d dbname -f xx.sql

psql -U username database(defailt username) < /data/dum.sql

xzcat /data/dum.sql.xz | psql -h localhost -U username database(default username)

导出

pg_dump -h localhost -U username database(default postgres) >/data/dum.sql

pg_dump -h localhost -U username database(default username) -t table >/data/dum.sql

xz dum.sql