try:

pg_restore -h localhost -p 5432 -U <username> -d <dbname> -1 <filename>

恢复转储文件

psql -d [Dbname] -U [UserName] -p 5432 < [FileLocation]

恢复一个.SQL文件

pg_restore -U [Username] -d [Dbname] -1 [FileLocation]

如果出现用户身份验证错误，请转到程序文件PSQL/data文件夹中的pg_hba.conf文件，并将“METHOD”更改为“Trust”。 重新启动windows服务中的psql serive (Win + R—> services.msc)。

根据创建转储文件的方式，有两个工具可供参考。

您的第一个引用源应该是手册页pg_dump，因为它创建了转储本身。它说:

Dumps can be output in script or archive file formats. Script dumps are plain-text files containing the SQL commands required to reconstruct the database to the state it was in at the time it was saved. To restore from such a script, feed it to psql(1). Script files can be used to reconstruct the database even on other machines and other architectures; with some modifications even on other SQL database products. The alternative archive file formats must be used with pg_restore(1) to rebuild the database. They allow pg_restore to be selective about what is restored, or even to reorder the items prior to being restored. The archive file formats are designed to be portable across architectures.

所以这取决于它被倾倒的方式。如果使用Linux/Unix，您可能可以使用excellent file(1)命令来找出它-如果它提到ASCII文本和/或SQL，它应该用psql恢复，否则您可能应该使用pg_restore。

恢复非常简单:

psql -U username -d dbname < filename.sql

-- For Postgres versions 9.0 or earlier
psql -U username -d dbname -1 -f filename.sql

or

pg_restore -U username -d dbname -1 filename.dump

查看它们各自的手册页-有相当多的选项会影响恢复的工作方式。在恢复之前，您可能必须清除“活动”数据库或从template0重新创建它们(正如评论中指出的那样)，这取决于转储是如何生成的。

备份= = >

选项1:在cmd中备份密码 1.PGPASSWORD="mypassword" pg_dump -U postgres -h localhost——insert mydb>mydb.sql 选项2:在cmd中进行无密码备份 2. pg_dump -U postgres -h localhost——插入mydb>mydb.sql Option3:以gzip格式备份(如果数据库很大) 3.pg_dump -U postgres -h localhost mydb——insert | gzip > mydb.gz

恢复: 1. psql -h localhost -d mydb -U postgres -p 5432 < mydb.sql

Backup:  $ pg_dump -U {user-name} {source_db} -f {dumpfilename.sql}

Restore: $ psql -U {user-name} -d {desintation_db} -f {dumpfilename.sql}

遵循以下3个步骤:

启动postgresql server - sudo systemctl Start postgresql 启用same - sudo systemctl Enable postgresql restore命令- pg_restore -h localhost -p 5432 - u postgres -d old_db . sh

假设转储文件在同一目录中

链接:

https://www.postgresqltutorial.com/postgresql-restore-database https://askubuntu.com/questions/50621/cannot-connect-to-postgresql-on-port-5432