postgres
postgres 连接数据库, 默认的用户和数据库是postgrespsql -U user -d dbname切换数据库,相当于mysql的use dbname\c dbname列举数据库,相当于mysql的show databases\l列举表,相当于mysql的show tables\dt查看表结构,相当于desc tblname,show columns from
postgres
连接数据库, 默认的用户和数据库是postgres psql -U user -d dbname 切换数据库,相当于mysql的use dbname \c dbname 列举数据库,相当于mysql的show databases \l 列举表,相当于mysql的show tables \dt 查看表结构,相当于desc tblname,show columns from tbname \d tblname \di 查看索引 创建数据库: create database [数据库名]; 删除数据库: drop database [数据库名]; *重命名一个表: alter table [表名A] rename to [表名B]; *删除一个表: drop table [表名];
ps aux | grep postgres
psql postgres

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